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Tyre Pressures

Credit crunch money saving tips from Ultracar.co.uk

Not many people realise the amazing difference tyre pressures can make on the cost of motoring.

Mainly, these costs can be categorised as follows.

  1. Fuel Economy – incorrect pressure can have a profound affect on fuel economy.

  2. Servicing Costs – incorrect pressures increase the load on parts such as wheel bearings, CV (Constant Velocity) joints and the actual wear on the tyres themselves.

Fuel Economy

New industry study shows that 95% of motorists have at least one tyre under-inflated by 10% resulting in a loss of £30.95 a year from extra fuel and tyre costs. 35% of these have at least one tyre under-inflated by 20% resulting in a loss of £60.90 a year.

If you are unsure of the exact required tyre pressure for your car, it can normally be found on a sticker, inside of the door shuts or inside the bonnet. On occasion we have seen these inside the fuel filler cap.

Servicing Costs

The most noticeable cost increase through incorrect pressures would be through under or over inflation, as the diagram below shows:

Its not difficult to see how this can greatly increase the cost of motoring, for just a simple periodic check.

Checking The Pressures

Tyre pressures should be checked as often as possible, but with the current changing temperature – we would suggest once a week.

Alloy wheels tend to be more susceptible to pressure change than steel wheels, but steel wheels should be regularly checked non the less.

Pressure monitors can come in a variety of forms, from a simple (and cheap) mechanical pressure checker (we found them from £2.50) to complex digital, and in-car checkers.