Re: tire diameter vs width influencing fuel economy


[ Follow Ups ] [ Post Followup ] [ Tires BBS ] [ FAQ ]

Posted by Roger on September 27, 1999 at 14:16:27:

In Reply to: tire diameter vs width influencing fuel economy posted by Bill Austin on September 24, 1999 at 06:35:53:

Sorry but the true answer is not available as there are just too many other variables.

A change in size does have an effect in Rolling Resistance but tires are only about 10 to 20% of total fuel economy so it would take a major change in RR to see a change in fuel economy.
I will even point out an error in your basic assumption. If you put a taller tire on the car you will go more miles for the same number of engine revs which would imply improvec economy. But you also have increased the air drag because the vehicle is now "bigger" as far as the air resistance is concerned so this reduces the fuel economy at higher speeds.
See why it is complicated and we didn't even get to the different brands of tire or tread compound or tread design or inflation pressure or alignment etc etc etc.


tireman9@xhotmail.com < remove x


Follow Ups:



Post a Followup

Name:
E-Mail:

Subject: Re: Re: tire diameter vs width influencing fuel economy

Comments:

Optional:
Link URL:
Link Title:
Image URL:

[ Follow Ups ] [ Post Followup ] [ Tires BBS ] [ FAQ ]

Back to Autopedia Home Page

email imageemail image

Last modified 01/14/99. Copyright 1995-99 by AUTOPEDIA, all rights reserved. AUTOPEDIA, AUTO411, CAR-IQ, DEALERPEDIA, UNILOT, SIMULSEARCH and INTERQUOTE-RFP are trademarks of AUTOPEDIA. All other trademarks, tradenames and/or service marks are the property of their respective holders.