Good afternoon all...
So I have a question, or rather, need a second or third opinion on tire pressure. I own a '92 Loyale Wagon that I've had since July of this year and the tires looked a bit low. They were sitting at 25 psi (average) I believe, with each tire being maybe a couple psi off. Today I filled all the tires up to 40 psi. According to the tires, to which I've provided the specs below, the max load for each tire is about 1,047 at 36 psi.
My questions for which I need answers and opinions are 1.) will the tires be fine being 4 psi over and 2.) the Owner's Manual for my wagon states the factory tires for this car are different than the ones on there now so does it really matter and what would it affect?
It seems someone had larger tires put on the car so if putting factory spec ones back on would improve my MPG, I'm all for that...considering my MPG is crap right now as it is. I also have my rear driveline out, a lack of power, random stalling, and backfiring through the intake so that's probably not helping my MPG case.
Equipped tires: 175/70 R13 36 psi (Geostar)
Owner's Manual: 165 SR13 28 psi front 28/32 psi rear