Stuff that's in my head

Can open... Worms everywhere! The blog of Colin Angus Mackay
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Curious calculation

Last weekend I had to replace two tyres on my car as they were wearing down. It cost £85.50 each to replace them. I was told that usually the back wheels wear away at half the rate of the front tyres. Given that the car has done 25,000 miles, it means that for every 50,000 miles I should have bought 6 new tyres. 6 tyres will cost £513. £513 into 50,000 miles is £0.01026.

Put it another way, my tyres wear away at a rate of just over 1 penny per mile driven.

Or, in terms of fuel costs, it would be like adding roughly 9p to a litre of petrol.

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Print | posted on Monday, August 11, 2008 8:55 PM

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# re: Curious calculation

Crumbs - those are expensive tyres. I pay < 70 UKP for my branded Dunlop Sport 01s...what are you driving?
8/15/2008 2:27 PM | Craig Murphy
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# re: Curious calculation

My tyres and Dunlops too and I drive a Toyota Yaris. The "cost to replace" a tyre includes labour, new valve, wheel balance, and disposal of the old. It isn't just the cost of the tyre.
8/16/2008 10:48 AM | Colin Angus Mackay

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