Quote:
Originally Posted by canadian_yeti
Before I ask, yes I have done some reading/searching. Still have questions
The stock tire size for my 01 2wd s10 is 205/75/15. Everything I've looked at was talking more about cars than trucks. So my question is, would running a 205/70/15(5% shorter sidewall) be a benefit or not?
|
First, read my webpages on the subject:
Barry's Tire Tech - Fuel Economy and Rolling Resistance
Barry's Tire Tech - Fuel Economy and Rolling Resistance2
Short version: Tire sizing plays a small role in rolling resistance. Better to spend time in the selection process (meaning make and model of tire).
As a general rule, larger tires are better for RR than smaller tires - BUT - see the statement above. Also, there are other tire properties where going larger is an advantage.
In your case, it is a bad idea to go from a 75 series to a 70 series. That's going smaller.