Quote:
Originally Posted by mattsk1
My Tires are at 40_ psi. I noticed your big on tire pressure. I am not sure it has made that much of an impact. The mod I noticed I got the most out of was blocking the lower grill. Other than that, my gas miliage has not changed that much. I am getting about 3-4mpg better than with out any mods, so it is an improvement.
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psi is free and easy!
about half of the population are at 28 psi, so going to 40+ makes a measurable change in mpg. Encourages them to then make small cosmetic changes (grill blocks etc)
I am also a BIG advocate for upsizing when buying new tires!