Try the tyre fuel efficiency calculator to see how much you could save by using tyres with a better rating.

Here are some calculations to compare a tyre rated C for fuel efficiency with an E rated one to see if it was worth the extra cost.

ATS Euromaster were selling the cheapest C rated tyre for my car for £83.99, the cheapest E rated one is £56.99, the difference is £27, neither are leading brands.

Assumptions:

Travelling 10,000 miles per year

Price of Petrol is £1.30 per Litre

Car does 50 mpg

Annual petrol expenditure = £1158

There is a 7.5% difference in fuel consumption between an A rated tyre and a G rated one. Assuming an even scale there could be a difference of 2.5% between the C and E.

That works out as a £28.95 per annum saving, but only if all four tyres are on the same rating. Individually it is £7.23 per tyre.

A good tyre may last 40,000 miles – so I could get 4 years use and the savings would add up. It takes us back to £28.95 saving over the average lifetime of the car, and that is approximately the price difference between the two options.

**So what can I conclude from these calculations?**

If the price is equal go for the best fuel economy.

Otherwise go for the cheapest tyre as any tyre could be damaged by a puncture or could wear prematurely if your wheel alignment is affected by hitting a pothole – the less investment in any one tyre the better.

**But wait – there is another rating: Wet Grip.**

There is roughly **3 metres** braking distance between each grade on the Wet Grip rating.

Think of the number of times you have had to brake hard recently.

In my case to get an A rated tyre over the cheapest option it’s an extra £42 per wheel for Goodyear EfficientGrip Performance tyres – but over 4 years of driving you only ever need that reduced braking distance once to save you a whole load of inconvenience, raised insurance premiums and possibly injury.

If you’ve ever looked at the Euro NCAP ratings and chosen a vehicle with a better crash safety rating – then tyres with the best Wet Grip rating possible should be also be a priority.

Get the best tyres you can afford, preferably going for grade A where available.

Looking at it another way – it’s only another £15 more than the C rated tyre (which breaks even on lifetime cost with the E rated one) and that extra is paid for by the better fuel economy rating B over the life of the tyre anyway.

**Next**

Try my tyre fuel efficiency calculator to see how much you could save.

Read blog post on the best website to buy fuel efficient tyres.

Check out my other articles on cars.

Nice blog mate, found it very interesting and your sums assuming they add up (it’s 8am Sunday morning, I’m not about to check) explain perfectly what it was i was searching for.

Very interesting blog mate and you answered my question really well, Thanks again robmills

Well explained and easy to follow. Answered exactly what I wanted in one swift read. Thanks

Good stuff

With thanks

Got these the other month

Goodyear EfficientGrip Performance tyres

And going to buy another pair for hers.

Thanks for the simplification, clear and easy answers to the questions I had

Nice 1

Here is where im confused because looking on black circles the cheaper tyres have a better fuel and equal wet rating where as the branded tyres are coming in at E for fuel and the cheap ones C.

with this information I just purchased two cheapest tires on Black Circles for my car as the savings over a year to the tire I was looking at was something around £8

Thanks for this article! Very useful

Good article, thanks. I was considering Michelins for my car, they are rated C and A for fuel and wet grip but my mechanic suggests Avons that are E and A.

I’ll be taking his advice now.