gotcha

 

Nice.

So you check your tire pressure in a nice warm garage then go out in the cold where the ambient temperature drops about 40+ degrees and you wonder why your tires look flat.


You either check them outside (cold) or add about 1 psi for every 10 degrees outside temp difference.

 

my tires suck anyways.. old, and one is a oddball.. (3 gsx wheels, 1 gst). so im gonna be taking it slow unless no one else is around..

AWD > snow

 

Yes.

No. Air expands when warm. Manufacturer's recommended air pressure is taken at "room" temperature, i.e. a nice warm garage.

No. If you check them outside in the cold, you *will need* to adjust for the temp. It is not an "or".

 

Really going to depend on how far you travel in this instance. If you travel one mile to work each way like Phil or travel several hundred miles a week like me, you're gonna take into consideration the temp that your tires will heat up by driving (friction generates heat). Your tires have recommended maximum tire pressures indicated on the sidewall, which are stated at room temperature, not after driving a bajillion miles then taking the reading.

Each car is different so there will always be exceptions. A generalized starting point is to take your car's weight (sticker on inside door jamb of driver's door has it) and divide by 100, then add two psi for the heavier end (i.e. the engine) and another two psi if you are running a stock suspension. Most people who post here have modified suspensions so you will need to take that into account. Again, this is a generalized starting point. My car weighs 3800#, +2 psi front, +3 psi for my modified suspension = 43 psi in tires with a maximum rating of 45.

Okay, so you're gonna need to know how to ensure that you're getting the correct tire pressure under your own personalized driving conditions. It's a three step process.

First, travel your normal route, taking tire pressure readings every few miles to determine when they reach their highway temperatures. If your tires are set to 35 psi measured at start, then go to 37 psi after 2 miles, then 38 psi after 4 miles, and remain at 38 psi from then on, you know how far it takes in travelling distance (approx, of course) for them to reach a normalized temp. Again, remember that the max psi on your sidewall is measured at room temp before travel, not afterwards.

Second step is to mark your tires after they reach that normalized temp with some chalk. Sidewalk chalk is great for this. Draw a thick line across the tread from inside to out.

Third step is to simply drive a short distance and check where the wear patterns occur. Does the center area wear faster than the others? If so, your tires are overinflated. If you see a wear pattern that shows that the middle is worn off less, then your tires are cupping due to underinflation, like a "w" pattern.

Hope this helps.

 

Yea.... I'm pretty sure no one does any of this, if you do.. you might want to think about getting out more

 

Damn I didn't even think about this, but I'm pretty sure my damn radiator is currently frozen. Originally I had some antifreeze, but I popped off the hosing on accident and just threw in some water like a lazy ass bastard.

 

ummm i would be much more concerned with your BLOCK than your rad. just a suggestion..

 

wow

 

Yeah I hear those crack...hum its a Ford 2.3, son. They are invincible!