Merityre Article Archive

Once more unto the breach dear friends, or rather, once more into the gripping world of car tyre trivia. So, did you know?

The word ‘tyre’ is derived from the word ‘attire’ i.e. clothing. This makes the American spelling ‘tire’ the more accurate.

The very earliest ‘tyres’ actually helped hold wheels together. The part that ran on the road was an iron band, which was heated and placed over the ‘felloe’, or rim, of a wooden wheel. When it cooled, the band shrank to fit the wheel tightly, adding strength to the structure.

Formula 1 tyres lose weight during every race. The high wear rate means that a tyre weighs 0.5kg less when replaced.

Speaking of weight saving, the tyre Goodyear developed for the Gulfstream business jet had aluminium, rather than steel, bead wires. This saved 1.3kg per tyre.

Bridgestone produces 40,000 Formula One tyres per year. The company reintroduced slick tyres to Formula One in 2009, after an 11-year absence (prior to this, grooved tyres had been used since 1998).

When travelling at 300km/hour, four car tyres can displace 61 litres of water per second.

A study by Continental Tyres found that 40% of motorists in Britain claim to have never checked their car’s tyre pressures.

To make matters worse, even fewer drivers said that they knew how to check tread depth; 70% didn’t know what the legal tread depth was anyway.

Happy checking your tyre pressures at the filling station? Driving there means that although the garage’s gauge may be accurate, your tyres will be warm and give a falsely high reading. The tyres are likely to end up 12 to 15 per cent underinflated.

Racing car and aicraft tyres are filled with nitrogen rather than compressed air. Why? Because in flight, aircraft can encounter temperatures of minus 40 degress Centigrade and frozen moisture in the tyres can cause vibration and balance problems on landing. In a racing car, using nitrogen reduces the tyre pressure variations that can adversely affect lap times.

The lessened amounts of in-tyre moisture and the reduced pressure loss are not enough to make using nitrogen economically viable in road tyres.

The world’s largest tyre manufacturer by volume, with interests in Dunlop and many other regional and second line brands worldwide, is the Goodyear Tire and Rubber Company.

The world’s most prolific tyre maker made 330 million tyres last year. This doesn’t really count as the tyres were for toys and models, also made by the Lego Group!

In the 1964 film ‘Goldfinger’, the scene where the tyre slicer comes out of the rear axle of James Bond’s Aston Martin DB5 was faked. A mocked-up quarter of the car was filmed on a small set. The tyres (and sills) of ‘Tilly Masterson’s’ 1965 Ford Mustang convertible were shredded – but not by the DB5.

Green credentials: Interfloor recycles used car tyres to make Duralay Treadmore high quality crumb rubber underlay. Every 10 seconds one used car tyre is turned into carpet underlay That’s 60,000 tyres a week and approximately three million a year, which would otherwise go into unfriendly landfill.

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Car tyres inflated to their correct tyre pressure can save the motorists up to 10% on their fuel bill. But a survey by TyreSafe reveals many are ignoring this advice.

The survey coincides with the start of Tyre Safety Month; a campaign to highlight the dangers of driving without the correct tyre pressures.

Maintaining the car manufacturer’s recommended tyre pressure can:

1) Increase safety by improving the vehicle’s braking, steering and accelerating performance.

2) Prolongs the life of a car tyre.

3) Save money by reducing fuel consumption. Under inflated tyres have a larger contact patch with the road surface, which increases drag and causes the car engine to work harder.

4) Have a positive environmental impact by reducing the number of tyres that need to be disposed of and reduce harmful gas emissions from the car engine.

TyreSafe’s advice is to check air pressures at least once a month and always before a long journey. Motorists should use the manufacturer’s recommended tyre pressure. This can be found in the vehicle’s handbook or on a plate inside the fuel filler flap.

While checking air pressure conduct a visual inspection of the car tyre to ensure it is in good condition. Look for cracks or unusual bulges. Stones lodged in the tyre tread should be removed. If in any doubt about the tyre’s condition consult a specialist such as Merityre for a free car tyre check.

It’s a legal requirement to maintain a tread depth of a minimum 1.6mm in a continuous band throughout the central three-quarters of the tread width and over the whole circumference of the tyre. Most tyres have a tread wear indicator. Look for a horizontal bar of rubber located between the tread patterns, at a depth of 2mm. When the height of the tread wears down to the height of this bar it is time to replace the car tyres.

Other tips suggested by TyreSafe include:

1) Check the pressures when the car tyres are cold.

2) Adjust the car tyres pressure when travelling with increased weight from passengers or a heavy load. Towing a trailer or caravan will also require the pressures to be increased. The vehicle’s handbook will advise on the correct tyre pressure required.

3) Don’t forget to check the pressure of the spare tyre.

4) Ensure the pressure gauge used is reliable and accurate.

5) Always replace the dirt free valve cap.

Rob Beddis, TyreSafe chairman, says; ‘By taking just a few minutes every month to check the pressure of each tyre and adjust it to the recommended level, significant improvements to road safety will be made and motorists could also save money through reducing fuel consumption.’

For more information about the TyreSafe campaign visit their website at www.tyresafe.org.

Last year an EU Landfill Directive banned the disposal of almost all tyres in landfill sites. So what can you do with old car tyres?

Car Tyre specialists like Merityre pay over a £1 to ensure every used tyre is disposed of in an environmentally friendly manner. And when they have over 200,000 to get rid off each year the money really starts to add up.

Nationally, tyre retailers, garages and vehicle dismantlers collect over 40 million tyres a year. 12% of these are reused after having a new tread applied. More innovative uses include creating flood defences. Others are recycled and used for products such as carpet underlay or road surfaces. An emerging market is energy recovery. It is hoped that tyres could partly replace coal as fuel source for many industries.

There are ways we can reuse car tyres at home rather than sending them to specialist disposal companies. Here are 10 great ideas:

1. Raised Beds
Car tyres are ideal for creating a raised bed for planting flowers, herbs or vegetables. A single tyre works well for lettuce and herbs. Use two or three tyres to grow potatoes.

Paint the car tyre bright colours to create a wonderful display when planting flowers.

2. Resoling Shoes
Use the rubber from the car tyre to resole shoes. It is very hard wearing.

Alternatively add a piece of leather and create a pair of sandals or flip flops.

3. Car Tyre Swing
Most people have memories of playing on a tyre swing when they were young.

Just use some strong rope and securely attach the car tyre to a sturdy tree branch for hours of fun.

4. Boat Bumper
Boat owners can attach the car tyres to the boat’s sides, to act as protective bumpers. Very useful when docking a boat.

5. Children’s Playground
Rather than spending a fortune on equipment from a garden centre, use a little imagination, some old wooden planks and a few car tyres to create a great adventure playground for the children.

6. Forcing Rhubarb
Forcing Rhubarb (growing rhubarb in dark conditions) has been practised since the early 19th century. It produces vibrant pink rhubarb that is far more delicate in flavour than the usual variety.

Place two or three car tyres around the plant just before it starts emerging from the ground. Cover the tyres with a piece of wood to create a warm, dark environment. From December to the end of March you will be enjoying succulent and sweet early rhubarb.

7. Sand Pits
Large tractor tyres are perfect for making a sandpit for the children. Just buy the special sand from a garden centre and fill the tyre.

8. Mini Greenhouse
Cover the car tyre with a piece of clear polythene to create a mini greenhouse or propagator. The thick rubber wall of the tyre is excellent insulation for creating a warm environment to germinate seeds.

9. Table
Place a flat piece of wood on top of two or three tyres for an easy to assemble table, suitable for the indoors or outside. Paint the tyres for a better effect.

10. Composter or Wormery
Three or four tyres stacked together create a simple composter. The warm environment created by the car tyres will make short work of composting kitchen waste and grass clipping. Access the compost by removing one tyre at a time from the top.

Ask your local garage for old car tyres. Not only will you be helping them with disposal, you will reuse a non biodegradable product in an environmentally friendly fashion.

Car tyres maybe essential when driving a vehicle but they are also extremely useful around the home and garden.

As oil prices continue to rise motorists need to find new ways to reduce fuel consumption. By spending an extra 5 minutes at the petrol station, checking car tyres are inflated to the manufacturer’s recommended pressure, fuel economy can be improved by 10%. This means a saving of £10 a week based on a weekly fuel spend of £100. In a year this adds up to a saving of £520, just by having correct car tyre pressures.

Incorrect car tyres pressure causes higher fuel use in two ways:

• Soft tyres increase rolling resistance on the road.
• If one tyre is a different pressure to the rest then there is an imbalance creating increased tyre resistance.

Both reasons make the car engine work harder and use more fuel.

Car tyre pressure should be checked weekly. Merityre Car Tyres has a useful video, providing tips and guidance on inflating your car tyres correctly.

By maintaining correct car tyre pressures money is also saved by:

• Increasing the life of the car tyre. Soft tyres wear faster and their sidewalls are damaged.
• Improving a car’s performance, especially braking and road handling.
• Avoiding a £2,500 fine per car tyre if they are deemed not roadworthy.

Five other suggestions by the AA for saving fuel consumption are:

1. Keep to the speed limit on motorways. Driving 15mph above the 70 mph speed limit increases fuel consumption by 20-25%.
2. Check the best route for your destination before departing. Listen to radio for updates on traffic jams and road closures.
3. Keep a safe distance from the car ahead. Tailgating causes excessive braking and acceleration, which uses more fuel.
4. Don’t drive with a roof rack as this can add up to 10% on fuel consumption. An open window can also disrupt air flow adding an extra 3-6%.
5. Use air conditioning only when really necessary. It can increase fuel consumption by 11%.

These suggestions and correct car tyre pressures will contribute to a small but significant reduction in fuel costs, benefiting the environment and helping to reduce our carbon footprint.