Save Money on Fuel by Checking Your Tyre Pressures!

Did you know that having under-inflated tyres affects the handling and grip of your vehicle which can cause it to behave in an irregular or unpredictable way? Furthermore it means that you have a much higher chance of suffering a dangerous blowout, especially on long distance high speed journeys. The tread on your tyres will also wear unevenly if it is over or under inflated and you will need to have them replaced more often.

 By keeping your tyres at the correct pressure your running costs will be reduced as you will save money on fuel. Under inflated tyres require more force to make them turn, and therefore… more fuel.

So… Where do you find the correct tyre pressure for your vehicle? Well there are a number of places to check this. Your vehicle user manual is usually a good place to start as this should also provide information on how much extra pressure you need if you are carrying a heavy load/trailer or if you are going to be travelling at a high speed for a long time.

 Other places it may be are on a label on the front door posts of your car, or on the back of the fuel cap cover. You can also check online at www.tyresafe.org/tyre-safety/tyre-pressure-check.

Now that you know the right pressure for your tyres you need to check that they are correct. To do this you will need some form of tyre pressure gauge like a foot pump or a digital pressure reader (all available at your local car parts store). Remove the dust cover on your valve and attach the gauge.

If your tyres are over inflated…

·         Let some air out by pressing the core of the valve in using a match (or something similar).

·         Deflate the tyre in short bursts and check regularly to ensure you don’t let too much out.

If your tyres are under inflated…

·         Ideally you should inflate your tyres when they are cold as a warm tyre can increase in pressure by 2psi (pounds per square inch).

·         Use a foot pump, plug in a 12v inflator, or use your local fuel stations tyre pressure inflator (these should have charts with all vehicle tyre pressures on them).

Make sure you check all of your tyres, including the spare! Once your tyres are inflated to the correct pressure, put the dust cap back on and you should be ready to go!

At all of our Merityre branches we offer Nitrogen Inflation. By filling your tyres with Nitrogen, they will maintain their correct pressure for longer as Nitrogen doesn’t leak through the tyre’s structure. Normal compressed air consists of mostly oxygen and water vapour, both of which permeate through the tyre casing. By filling your tyres with Nitrogen you will get:

·         Better road holding

·         Longer tread life – up to 25% increase

·         Reduced fuel consumption – Up to 5% reduction

·         No corrosion to the inside of the wheel.

 

You should check your tyre pressures at least once a month, before you go on long journeys, or whenever your vehicle is carrying heavy loads. If you are unsure of anything or would like help, bring your vehicle to your local Merityre branch http://www.merityre.co.uk/find_a_centre.htm and we’ll be happy to do it for you, completely free of charge. 

Checking your tyres… what.. why.. when.. and how…??

WHAT…

So.. How many of you actually know what you’re looking for when you check your tyres? I’ll be the first to admit that before I started working at Merityre I had no idea that the tread on your tyre could wear unevenly, or that you could actually repair a puncture rather than having to buy a brand new tyre. Well in this entry I will try to explain exactly what to look for when you check your tyres.

WHY…

It should go without saying that your tyres are a fundamental part of your vehicle as they are the only parts which have contact with the road (hopefully)!! It is therefore incredibly important that your tyres are in a safe and working condition when driving yourself/friends/family or anyone else around. You never know how many times your tyres may have saved you and your vehicle from serious accidents or damage already.

Did you know that WORN TYRES:

·         Are unsafe

·         Do not give you the adhesion to stay safe on the road

·         Can be illegal… Penalty points here we come

·         Can burst, leading to serious accidents

·         Increase fuel consumption!

·         Pick up foreign objects more easily which can lead to punctures

·         Can lead to other more serious problems with your car

·         Can increase the possibility of prosecution after an accident and increase insurance premiums.

·         Will give you an uncomfortable ride

WHEN…

So firstly, when should you check your tyres? Well there isn’t really a set amount of time between when you should do checks, but we would recommend every week, and before undertaking any long journeys. This means that if you do have any problems, you will spot them quickly and hopefully avoid driving around on potentially dangerous tyres.

HOW…

The first step is to turn on your engine (with the handbrake on and out of gear), and turn the steering wheel so it locks on one side, then turn the engine off again (this will depend if your vehicle has power steering). This allows you to see the full breadth of the tread on your front tyres which is important as it allows you to notice if there is any uneven wear across the tyre.

(Many modern vehicle tyres are very wide and the innermost edge of these can wear right down while the outside edge can appear faultless. This can also occur on tyres if the steering and suspension alignment is out on the vehicle. It is very important to check the full width of the tread!)

LOOK FOR…

·         Now you check your tread depth. The easiest way to do this is using a tread depth gauge, but if you don’t have one of these you can use the tread wear indicators which are located within the grooves of the treaded part of the tyre. These are small raised blocks about 10mm in length and 2mm in height which are situated all around the tyre (so you should be able to find them). The legal limit for tread depth is 1.6mm and the indicators are raised to 1.6mm to 2mm. Therefore if any part of the tread area is running flush with the indicators, your tyre has worn to its lowest level and needs replacing.

 

·         You need to make sure that you check as much of the circumference of the tyre as possible as sometimes one section of the tread will be fine, and another section will be worn. This may mean that the tyre is distorted. You need to check for any material degradation in the tyre, for example cracking and perishing.  At the same time look for any deep or long cuts and any foreign objects. Your car drives over lots of different surfaces so you may see bits of stones here and there, but any object which does not come out easily may have penetrated the tyre and be causing pressure loss (puncture).

 

·         Now have a look at the side walls of the tyres. The side walls are prone to damage from impacts, chafing against curbs, under inflation and tearing. You will be looking for cuts, abrasions or missing rubber. When a tyre has a puncture or has been run under inflated for a while it can cause pinching between the wheel and the road surface (run flat damage). This can be seen as an abrasion mark running the entire circumference and worn letters and numbers on the side walls. When this occurs your tyre will need replacing.

 

·         Bulges can be detected by running the flat of your hand over the entire surface of your sidewall. A bulge represents serious damage to the structural integrity of the tyre.

 

·         In the outer rim of the wheel you will find the valve. Check this carefully for any deterioration of the material. Ensure caps are fitted. By moving the valve stem from side to side, look for cracking of the rubber around the base.

Repeat all of these processes for each tyre and don’t forget the spare!

So, for a quick recap:

Your tyres need attention if they have:

·         Low tread depth

·         Deterioration of the rubber (cracking or perishing)

·         Uneven tread wear (distortion of tyre)

·         Deep cuts or sections of tread missing

·         Embedded foreign objects

·         Side wall damage and bulges

·         Damaged or worn valves

So.. Now you know why it is so important to check your tyres, and not just the tread depth, but the whole tyre. If you find this all a bit too much, then just bring your car to your local Merityre Branch www.merityre.co.uk/find_a_centre.htm and we’ll do it for you absolutely free. We will also give you advice on when you may need new tyres and give you a Merityre Tyre Check Report on their condition. You can also have a FREE Wheel Alignment check which will show up any problems and help to prevent your tyres from wearing unevenly.

For information about our Club Card Plus, go to our website at www.merityre.co.uk or ask at your local branch.

The next entry will explain how to check tyre pressures.

My Google+ Profile