mpg ???

Post by **DavidT** » Tue Mar 23, 2004 9:22 pm

If you look on a tyre manufacturers site, you can compare the rolling radius' of the different tyre & wheel sizes, they usually give them in revolutions per mile so you can calculate the variances exactly.

I usually use www.toyo.co.uk

Post by **sash** » Wed Mar 24, 2004 11:44 am

tirerack.com recommend 225/40/18, im currently on 235/40/18, doh!

Post by **philipwalker** » Thu Mar 25, 2004 11:37 am

I had a trip to collect a car in my S4 yesterday, I managed 29.77....310.9 miles on 10.44 gallons...cruise on at around 75mph...
A good link below for your tyre sizes...
http://www.miata.net/garage/tirecalc.html

Post by **philipwalker** » Thu Mar 25, 2004 11:41 am

I had a trip to collect a car in my S4 yesterday, I managed 29.77....310.9 miles on 10.44 gallons...cruise on at around 75mph...
A good link below for your tyre sizes...
http://www.miata.net/garage/tirecalc.html

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