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Bomber-Stud
03-23-2010, 06:08 PM
Does the tire speed rating indirectly affect gas mileage?
dhlwtu
04-25-2010, 09:10 PM
No speed rating the handling and performance of the tire at high speeds
ShortBus
04-25-2010, 10:15 PM
No speed rating the handling and performance of the tire at high speeds

not true, speed rating is the ability of a tire to take the heat that comes with high speeds and yes higher rated tires will affect mileage due to it's structure.
Twinbros
04-28-2010, 12:22 AM
In most cases, a higer speed rating usually means less milage. Just compare any tire tire that is offered in both h & zr rating and you will see that the H rated tire has higer milage.
BMWWW
04-28-2010, 01:09 AM
Negligible.
Zoom Zoom Boy
04-28-2010, 02:04 AM
In most cases, a higer speed rating usually means less milage. Just compare any tire tire that is offered in both h & zr rating and you will see that the H rated tire has higer milage.

The OP was talking about gas mileage, not treadwear mileage...

You will not notice any significant difference in gas mileage with tires of different speed ratings that are useable on these cars. Assuming of course, they are all properly inflated.