I deflated all 4 tires by 10 pounds. Did a test run and noticed a drop
of 3 mpg, yes I said "three miles per gallon", and it was city
I then took another 10 out, making it 20 lbs less than factory spec,
and my MPG dropped another , so a total of 5 mpg.
Sum up:I could drive the car all the time with 20 pounds low of air in
each tire and only suffer 5 mpg.
Yeah, keep them inflated like they say...sure it saves money.
I guess if proper inflation saves money then over-inflation would EARN
Spec is 35 psi, so 40 psi would make me money. I might try that.
thanks for listening.