Author - hessamaldin

How the weather affects your tires

Whether you are using all-season tires or season-specific tires, the weather will always have an effect on your tires. Even with the best tires you can afford, the weather effects will still take place. Most people simply drive throughout the seasons without thinking about how the weather will impact their tires. Depending on the season you are in, there are certain things that you should be watching out for.

For the sake of simplicity, this blog will cover the extremes of hold and cold weather (summer and winter, respectively). These problems do not arise with the spring and fall seasons when the weather is far more moderate in temperature.



During the hot summer weather, your tires may overinflate. Most cars are equipped with a system that regularly monitors the pressure of your tires. It will go off whether one or all of your tires are underinflated. The catch is that you will not receive a signal when your tires are overinflated and so you must perform checks instead of relying on the car’s pressure detection system. When coupled with the scorching hot pavement and a heavy load for long car trips, your tires could potentially blow out in the middle of a driving session.

You will also want to be on the lookout for tire wear, which will lead to greater difficulty in handling your vehicle. Tread wear is measured in 1/32ths of an inch. Uneven wear patterns and a tread depth that is lower than 3/32 of an inch are good indicators that your tires need to be replaced.

When the winter season approaches, your tires will be accustomed to the hot weather and the pressure in your tires will lower significantly due to the contraction of the tires once they come in contact with the cold weather.



In the winter season, you face the opposite problem. Your tires may be underinflated while driving (meaning the tire pressure will be lower), and this can be very dangerous.

You should keep your car inside your garage instead of outdoors. This is especially important during the winter season where the cold weather will affect your tires.

Additionally, your gas mileage will be negatively affected, and you will find that it is more difficult to handle your vehicle. This translates to higher fuel costs that can accumulate into an unnecessary expense if the problem goes unsolved.

Unlike the summer months, your car’s pressure system will be an accurate assessment of your tires and whether they are underinflated. Even with this system in check, you will still want to manually check the pressure of all of your tires. That includes the spare tire!

Avoid hitting potholes while driving in the winter, as this can damage the sidewall of your tires and make them weaker. If you are using all-season tires, the rubber loses its grip, and you will find it difficult to come to a complete stop on icy terrain. Winter tires are designed to sustain sufficient friction in temperatures below zero and do not have this problem.

In either season, the solution is to check the pressure (PSI) in all of your tires on a monthly basis. You will want to perform this test in the morning before you start your car. If you check the pressure right after a long driving session, you will get an inaccurate result. Your tires will heat up due to the friction, and the pressure will be higher on the reading.

The general rule is that the pressure will change 2% in either direction with every 10oF shift in air temperature. Make sure that the pressure readings match the recommended tire pressure of your vehicle as stated in the owner’s manual.

Causes of Rough Engine Idling

Rough idling means that your vehicle is vibrating, producing unhealthy noises or displaying an inconsistent RPM while it is stationary and the engine is on. The reasons for a rough idle can vary, with some being cheap, easy fixes and some requiring more complex repair procedures. In a healthy car, the RPM should stay between 600-1200 while the vehicle is idling. If the engine is just started, then the engine RPM will be higher above 1000 RPM. For a 4-cylinder car where the engine is warmed up, the engine should idle around 750 RP. There should also be little or no vibrations or shuddering from your engine.  


Causes of Rough Idling:

Loose or Damaged Vacuum Hose

Many vehicles rely on a vacuum hose to assist in the processing and combustion of fuel. If the vacuum hose becomes loose or leaks, your vehicle will struggle to process burning fuel, resulting in a rough idle (often causing a higher idle speed). Sometimes you can hear a “hissing noise” with the engine running when a vacuum hose is disconnected.

Malfunctioning Spark Plugs

Spark plugs ignite the air/fuel mixture in your engine’s combustion chamber, allowing the car to burn fuel correctly. When the spark plugs are malfunctioning, your car may vibrate or produce unhealthy noises when idling. Common causes of malfunctioning spark plugs include components wearing over time, incorrect installation, damaged/fault ignition coils or damaged wiring in your car’s ignition system.

Unclean or Damaged Fuel Injector

The purpose of your car’s fuel injector is to inject fuel into the engine cylinders. This allows for the fuel to mix with air and create the required energy to power your car.

Over time, fuel injectors can become dirty, reducing their ability to effectively transfer fuel. Sometimes a fuel injector will become partially blocked decreasing the amount of fuel entering the engine’s cylinder, or not get sealed correctly and leak fuel into the engine’s combustion chamber. Regular inspection and cleaning of your car’s fuel injectors will result in a much smoother idle.

Clogged Air Filter

The air filter cleans the air as it enters your vehicle, removing contaminants such as dirt, sand, leaves, and dust. Over time, your car’s air filter will become clogged due to these contaminants becoming stuck. This can cause poor fuel economy, engine misfires, and rough idling.

Your air filter’s lifespan depends on your driving habits. If you drive through a lot of rough, rural terrain, the filter will become clogged at a quicker rate.

Are M+S tires the same as Winter tires?

Are M+S tires the same as Winter tires? The answer will surprise you!

New winter tire laws and winter travel restrictions are popping up in regions of the country prone to heavy snow fall and extreme winter weather.

To keep safe and legally compliant when driving in these areas, it is important to know the different tire classifications and tire certifications to distinguish between all-season tires and true winter tires. The objective of these laws is to improve winter travel safety, and prevent travel on unsafe tires, but everyone including people enforcing the regulation can be confused by tire jargon. The following is an explanation of the different tire classifications, certifications, and winter tire markings to ensure that you don’t get stuck at a roadside tire check this winter.

New winter tire laws and winter travel restrictions are popping up in regions of the country prone to heavy snow fall and extreme winter weather. To keep safe and legally compliant when driving in these areas, it is important to know the different tire classifications and tire certifications to distinguish between all-season tires and true winter tires. The objective of these laws is to improve winter travel safety, and prevent travel on unsafe tires, but everyone including people enforcing the regulation can be confused by tire jargon. The following is an explanation of the different tire classifications, certifications, and winter tire markings to ensure that you don’t get stuck at a roadside tire check this winter.

Tire Classification

Tire manufacturers and tire retailers use general classifications to categorize tire types. Terms like “all-season tires,” “all-weather tires,” “winter tires,” “summer tires” and “rain tires” are examples of tire classifications. While tire manufacturers group their tire styles per actual performance attributes, the groupings are quite arbitrary. One tire manufacturer may design a tire that is optimized for wet and dry conditions and call it a summer tire. Another manufacturer could have a product with the exact same performance characteristics, and market it as an “all-season” tire. There is no way to tell exactly how a tire will perform or how a tire manufacturer classified a particular model just by looking at the tread, sidewall, or name of the tire style. For this reason, law enforcement officers at roadside winter tire checks rely on additional information to differentiate tires intended for us on winter roads.

Tire Certifications and Markings

Over the years, the Department of Transportation (DOT) and the Rubber Manufacturer’s Association (RMA) have implemented certified testing and tire marking systems to help differentiate tires. There are two common tire marking used for winter: “M+S” marketing and the “Three Peak Mountain Snowflake” symbol. A tire manufacturer is not obliged to submit their tires for testing, nor do they have to include these markings on the side of their tires. For this reason, it is important to check before you buy new tires. You could be buying a tire that is marketed as an all season tire for year-round use, with very good snow and ice traction, but without the “M+S” stamped somewhere on the sidewall, your tire may be deemed unsafe for travel on certain roads.

M+S Marking

The M+S marking was introduced in the 1970s to distinguish tires with extra mud and snow traction from tires with ribbed treads, common in the era. For a tire to have the “M+S” grading and stamp on the sidewall, it had to have a particular style of block tread pattern and more traction capabilities. By today’s tire performance standards, the standards for this classification is actually quite low, particularly for typical winter driving conditions like packed snow and ice. However, the “M+S” certification system has become the benchmark to help the average tire buyer and law enforcement determine if a tire meets even the basic level of snow traction.

Three Peak Mountain Snowflake

In the late 1990s, the RMA realized that updated standards were required to differentiate ture “winter tires” from standard “all-season” tires. The new testing parameters included more winter traction specific testing, including a snow spin test. Today, the Three Peak Mountain Snowflake on the side of a tire remains the best indicator that the tire has good levels of winter traction you would expect from a tire classified as a true “winter tire.” While there are a few non-winter tires, like all-terrain light truck tires, that pass the traction test and carry the Three Peak Mountain Snowflake symbol, the large majority of tires with this symbol are true winter tires, intended to be used only during the winter months.

Winter Tire Laws and Regulation in Your Area

What does this all mean for you? If you drive in an area with winter tire laws and travel regulations, you should first learn the local winter tire laws. Dedicated winter tires are always a good idea for maximum safety, but most winter travel restricted roads will allow travel without winter tires if you have chains, and your all-season tires are in good condition and are appropriately marked. Regulations pertaining to tires and winter travel can vary from area to area however, so it is best to research before setting out on a trip through a mountain pass or new route that is subject to heavy snowfall.

At the very least, you should check your all-season tires for the M+S symbol on the side of the tire. The marking can usually be found close to the bottom edge of the tire that attaches the wheel as shown on the left. A law enforcement officer at a roadside winter tire check is first going to look at the tread, and the name of the tire. If they don’t recognize it as a dedicated winter tire, the next thing they will look for is the Three Peak Mountain Snowflake or the M+S symbol. Many will also look at the condition of the tires. If the tread is too worn, you could be asked to turn back, or be required to pullover and install tire chains.

SEMA Show OCT 2017

Dates: Oct 31 – Nov 3, 2017

Venue: Las Vegas Convention Center, Las Vegas, Nevada

The SEMA Show takes place October 31 – November 3, 2017 at the Las Vegas Convention Center located at 3150 Paradise Road, Las Vegas, NV 89109.

The SEMA Show is the premier automotive specialty products trade event in the world. It draws the industry’s brightest minds and hottest products to one place, the Las Vegas Convention Center. In addition, the SEMA Show provides attendees with educational seminars, product demonstrations, special events, networking opportunities and more.

The 2016 SEMA Show drew more than 70,000 domestic and international buyers. The displays are segmented into 12 sections, and a New Products Showcase featured nearly 3,000 newly introduced parts, tools and components. In addition, the SEMA Show provides attendees with educational seminars, product demonstrations, special events, networking opportunities and more…

Note: The SEMA Show is a trade-only event and not open to the general public.

How to install tire chains

Carrying Tire Chains is compulsory on many of the highways in Canada during the winter months. These dates change by province and territory so please check with your local Ministry of Transport for the most up to date details. Drivers are required by law to obey the Chain Up signs throughout the country. Make sure you’re prepared! When purchasing a set of Tire Chains here are a few tips to assist you with your purchasing decision:


Always confirm the tire size by checking the sidewall of your tires. If you are unable to confirm your tire size


There are several types of Tire Chains on the market, so while the following general guidelines should be taken into account, remember that the manufacturer’s installation instructions are the final word.

Follow the Manufacturer’s instructions on the Tire Chain packaging during installation.

  1. Practice installing your Tire Chains during dry conditions to make installation during winter conditions easier and to confirm that there is sufficient clearance and proper tire fitment.
  2. ALWAYS pull off the roadway to a safe place to install or remove the Tire Chains. Set your vehicle’s handbrake and block 1 tire during the installation procedure.
  3. Lay the chains on the ground beside the tire with the traction part of the chain facing upward and remove any tangles.
  4. There are 2 common procedures to install Tire Chains:
    • a)Lift the tire chains from the side closest to the vehicle and place the Tire Chains over the tire as centred as possible. Ensure the traction side of the tire chain is on the outside of the tire and stretch the chains, preventing tangles. Fasten the inside fastener as tight as possible and then fasten the outside fastener.
    • b)The alternate procedure to install the tire chains is to drive your vehicle onto a small block of wood 2” x 4” (approximately 10” long) and repeat the instructions in 4a.
  5. After the end fasteners have been attached drive the vehicle slightly forward so that the tire chain is now underneath the tire. Retighten the end fasteners to assure maximum tightness. Attach the Spider Bungee or the Rubber Tightener.

A few little reminders:

  • Install Tire Chains as tight as possible as this will lengthen the life of the tire chains. Loose tire chains will also damage the vehicle.
  • Do not exceed 50 km/h as the tire chains may break from excessive speed.
  • Do not drive on bare pavement while using tire chains. This will cause premature wear and breakage.
  • Take heed of designated routes throughout the province that require tire chains to be carried at certain times of the year. (October 1st to April 30th)

Petrol and Diesel Vehicles to be Banned in the UK by 2040

In an effort to reduce air pollution and its health-related side effects, the UK plans to ban the sale and use of petrol and diesel powered vehicles by 2040. Alongside France and Norway, the UK will be the third country to suggest the eventual removal of petrol/diesel vehicles from their roads.

The ban of petrol and diesel powered vehicles will dramatically reduce emissions into the atmosphere. However, it is predicted that the demand for electricity will be higher than it has ever been, with an increase of around 50% in Britain. With a large increase in vehicle charging, power companies may have to take steps to improve their services.

Many car manufacturers have already expressed their intention to focus more on electric vehicles in the future. Recently, Volvo stated that by 2019, all their new vehicles will be electric.


Electric Cars in New Zealand

In New Zealand, no plans have been made to ban petrol or diesel vehicles in the near future. However, as electric vehicles improve in price and performance, we can expect their popularity to rise significantly in the future.

In May 2016, the NZ Government announced an electric vehicle program, which aims to increase the amount of electric or low-emission vehicles on our roads. On July 1st 2017, registration costs were significantly reduced for electric vehicles in New Zealand. This was done to encourage drivers to switch over to more fuel efficient vehicles.

Currently, the lack of vehicle options and and the limited battery capacity are two factors that are stopping people from buying EVs. However, the technology for these vehicles is improving all the time, with newer models offering battery capacity that rivals petrol vehicles. As the technology improves, we will see a rising number of car manufacturers start to produce electric models, providing a much larger array of options.

If petrol prices continue to rise, electric vehicles will offer New Zealanders a much more cost-efficient option. The running cost of an electric vehicle is around 30 cents per litre (about 17% of a petrol vehicle’s running costs).

An increase in electric vehicles will change the way that mechanics service cars. This is because electric vehicles require different equipment and training to standard petrol vehicles. At Grimmer Motors, we are already investing in tools and diagnostic equipment for electric and hybrid cars, allowing our workshop to prepare for imminent changes in the automotive industry. 

What is Tyre Retreading? Advantages and Disadvantages

What is Retreading?

Retreading is a process through which we can use our old tyres. In this method, a worn casing of a tyre that has a good structural quality is taken off and put through a process in which it gets a completely renewed tread and sidewall rubber. After that, the revamped tyre is taken forward for a curing process in which the new rubber is vulcanized to the original casing and hence, the tyre gets a newly made tread pattern. Over the years, a lot of development has taken place in the tyre manufacturing industry across the world. High standard tyres are being manufactured using premium technologies, so that they could perform flawlessly not only in their ‘first life,’ but also in their second and even sometimes third life. So, along with that, the retreaded tyre industry is also growing, as stronger tyre casings, enhanced re-manufacturing techniques and high-quality rubber compounds are being used.

A retreaded tyre commences its life as a worn out tyre. There is a need for retreading when you find out that the tread is down to 2-3 mm or if it has been re-grooved earlier, or if your tyre has punctures and needs a repair. In these cases, you need to take your tyre to an experienced technician who will check and inspect the tyre to see whether it is in a condition to get retreaded. If the expert finds it alright, then you can go for a retreading of your tyre.

Advantages of Retreading of tyre:

There are several advantages of retreading such as:

  • Retreads are quite safe and are being used in all kinds of vehicles nowadays. May it be taxis or trucks, school buses or military vehicles, retreading is being used in all of them.
  • Retreading is highly environment-friendly. When the existing tyres are made ready for further use, the manufactures save landfill space. Also, it reduces carbon dioxide emission and saves millions of gallons of oil which is required to manufacture new tyres. Therefore, when you get your old tyre retreaded instead of buying a new one, you play a major role in saving the precious natural resources.
  • There are many economic benefits of retreading as the retreaded tyres are less pricey in comparison with the new ones. This definitely helps you save a considerable amount of money. You can retread your old tyre at least twice or thrice and this helps you save up to 40% of your money every time because if you go for a new set of tyres it will cost you almost double of the price of a retread one.
  • The retreading process is not responsible for spreading large chunks of rubber on the roads and highways. According to recent studies, it happens due to abuses like tyre failure, caused by road hazards, tyre blasts and overloading to both new tyres and retread ones.

However, instead of all these benefits of retreads, they could not really take off so well as most of the consumers have a negative impression about the retreaded tyres.

Disadvantages of retreaded tyres:

  • Retreaded tyres are generally a lot less expensive than the new ones, however, after the budget tyres have come into play, the scenario has changed to a large extent. Now, it seems that budget tyres are even less expensive than the retreaded ones and as they are freshly made tyres, they obviously have better quality than the retreaded tyres. Hence, a customer is more likely to prefer budget tyres to the retreaded ones.
  • In retreading, a new lease of rubber is put on the casing of a worn out tyre without changing the cords of infrastructure. Hence, the quality of the retreaded tyres always stays a lot down than that of the new tyres. No matter how well it works after retreading, there has to be some issue with a retreaded tyre.

Investing in TPMS Tools

Most vehicles require some type of “stationary” relearn procedure to reset the system. This requires some type of TPMS tool to activate each of the tire pressure sensors in a specified sequence so the TPMS control module can relearn their new locations. On some GM applications, a J-41760 magnetic tool is required to “wake up” the sensors. On most other applications, a factory TPMS tool or an aftermarket TPMS tool that broadcasts a radio signal is needed for the sensor position relearn procedure.

On some applications, the TPMS relearn tool can be connected to the vehicle’s OBDII diagnostic connector to read and clear codes, display system data and perform sensor ID programming. On many Asian and European applications, each individual tire pressure sensor has a unique ID code. Vehicles that currently require this kind of reprogramming include most Hyundai, Infiniti, Kia, Lexus, Mitsubishi, Nissan, Subaru, Suzuki and Toyota models. If one or more sensors has been replaced, the new ID information has to be inputted directly into the system. So, if you don’t have a TPMS tool that can do this, your only alternative is to send your customer back to the new-car dealer to have the ID reprogramming done.

TPMS relearn procedures vary a great deal from one vehicle to the next, so you also need access to the TPMS service data for the vehicle, or a reference manual or chart that covers the relearn procedures. Without this vital information, you can’t reset the system.

Essentially, most relearn procedures require you to put the system into a relearn mode. On some, this may require a command from a scan tool or plug-in TPMS tool. Or, you may have to cycle the ignition key on and off a certain number of times while stepping on the brake pedal. On others, the keyless entry fob may be used to wake up the TPMS module and ready it for relearning.

When the TPMS is ready, it may signal by beeping the horn or flashing the hazard lights. The TPMS activation tool is then placed near one of the tire pressure sensors, and a button is pressed for five or six seconds to wake up the sensor. As soon as the TPMS module recognizes the sensor and learns its position, the system signals again by beeping the horn or flashing the hazard lights. You then repeat the same procedure for each of the remaining tire pressure sensors in the specified order until the relearn procedure is complete.

Scan tools or dedicated TPMS tools that can interface through the OBDII connection can have advantages when it becomes too difficult to reprogram vehicles — even on vehicles that have key fob or DIC relearn procedures.

With some procedures requiring a J-41760 magnetic tool, you may be flying blind. Problems with the key fob, antenna and even the module or serial data bus connection can leave you chasing your tail. With a scan tool or dedicated TPMS tool, it is possible to perform a more accurate relearn and diagnosis.

Shock Absorber Repair and Replacement

It is important that you are able to identify the warning signs of failing shock absorbers and struts in your vehicle. Having worn shock absorbers can result in your vehicle taking a longer amount of time to stop when the brakes are applied. As well as being a potential safety risk, your car may not pass its next WOF if the shocks are worn.

What do shock absorbers do?

A shock absorber is a hydraulic device that controls the movement of your car’s springs and suspension, preventing the vehicle from bouncing and shaking when going over bumps. The purpose of shock absorbers (or shocks) is to make sure the vehicle’s tyres remain in contact with the road. This allows the vehicle to stop promptly when the brakes are applied.

What are the signs that your shock absorbers need replacement?

  1. Vibrations while driving

Damages or worn shock absorbers can make your steering wheel vibrate when you are driving. This is because your tyres have less contact with the road. At high speeds, the vibration can increase, restricting the control you have over your car.

If you are experiencing vibrations while driving, we recommend that you drive slowly and get your vehicle repaired as soon as possible.

  1. Vehicle “dives” when braking

Ideally, your car should remain level at all times, even if you stop suddenly. If the front of your vehicle leans forward when you brake, your shock absorbers may be in need of repair.

If your vehicle leans to one side when it is turning, this can also be a sign of damaged shock absorbers.

  1. Longer Stopping Distance

If you notice that your vehicle is taking a longer amount of time to stop, it may be a problem with your shock absorbers rather than your brakes. Damaged shock absorbers can reduce brake responses by up to 20%, compromising the safety of your vehicle.

If you notice a delay in your vehicle’s braking, we recommend that you get it examined by a mechanic as soon as possible.

  1. Inconsistent tyre wear

When your shock absorbers or suspension system is faulty, your car’s tyres will bounce up and down, causing rubber to be scraped off. This can result in an uneven wear in your tyres.

Over time, this can decrease the lifespan of your tyres and affect the smoothness of your vehicle, even after the shock absorbers have been fixed.


Why get your shock absorbers serviced?

Improve safety, allowing your vehicle to stop quickly after breaking

Increase the life of your tyres

Prevent further damage to your suspension system

Provide a smoother, less bumpy ride for you and your passengers


Korean Autoparts & Auto-related Industries Show

Dates: Oct 18-20, 2017

Time: 10:00 – 17:00

Venue: KINTEX II – Seoul, Korea

Ticket: 5,000 KRW

Excellent Opportunity to Introduce Your Products to the World!

Two Major Exhibitions in One

KOAASHOW and Global TransporTech (GTT), another major exhibition in Korea, have merged this year. As the two exhibitions have come together, a larger number of exhibitors and buyers will be invited.

The Largest Automotive Industry Trade Show in Korea                

KOAASHOW is the longest running and the largest automotive industry exhibition by number of exhibitors and visitors.

Covers Everything About the Automotive Industry

Material, Electronics, Maintenance, Engineering facility, Hybrids & PEV, and Present and future trends


  • Services Offered to KOAASHOW Exhibitors and Partners
  • Buyer’s purchasing inquiries for exhibitors
  • One-on-one business meetings between buyers and exhibitors
  • Advertisement on major Korean TV networks
  • Organize various co-events



  • Biggest automotive-related exhibition in Korea with the highest number of participants
  • Attracts high share of global participants
  • Attracts numerous global buyers
  • Provides customized services as per the needs of the participants and customers
    (One-on-one business meeting with major global buyers)
  • Acknowledged by the Korea Government
    Selected as the Promising Exhibition
  • Displaying various auto products, including auto-electronic, car care products for the car owners, as well as interior and exterior products.