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A few years ago (let's call it four and a half) I took my RAV4 to a semi-retired guy who does wheel alignments out of his shop on his home property. He came recommended by the repair shop who put new tires on my RAV.
ANYWAY, this gentleman told me the recommended PSI on the door is for like...ideal midwestern conditions where roads are flat and straight. Here in PA, lots of hills and windy roads, he said the PSI should be higher. So even though the RAV4 door stick said something quite like low 25 PSI or something, he said to run them at 38 PSI. The repair shop had them inflated at close to 45 PSI which I thought was way too high.
Is there any sense/logic/truth in what the alignment guy told me?
The 35psi is recommended to keep all the tread in contact with the road in your particular vehicle. Thats why the manufacturer stamps it on the driver side door pillar. Higher pressure will get better gas milage but also longer stopping distances, instability on curves, in rain and wear the center out off the tire. So the gas savings will go to buying new tires in half the mileage expected
The 50psi is the max pressure the tire can handle before very bad things can happen. Pothole blowout etc.
We can't have forum members believing they can run their truck at max pressure on tire sidewall.
It can blow out unexpectedly and roll your truck over.
One funny note, I picked up my truck with 49psi in all four tires.
The 50psi is the max pressure the tire can handle before very bad things can happen. Pothole blowout etc.
We can't have forum members believing they can run their truck at max pressure on tire sidewall.
It can blow out unexpectedly and roll your truck over.
One funny note, I picked up my truck with 49psi in all four tires.
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On the C-Max Forum the hyper milers would bump up the pressures to almost max allowable and felt it helped mpgs at the cost of a rougher ride. As others have pointed out, NEVER exceed maximum pressure located on sidewall of tire. And be aware that for every 10 degree change in ambient air temp, there is an approximate corresponding one (1) pound change in tire pressure.
Vehicles are purposely shipped with tires overinflated.
Pressures ...should.... be corrected as part of the PDI
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Increasing the pressure reduces the area of the contact patch—which reduces traction. So, no, you wouldn’t want to reduce traction on twisty roads.
I’m not sure why a guy who does alignments out of his home has any more credibility than the engineers who studied this stuff. But maybe NASA should get in touch with the gentleman who shoots bottle rockets out of his empty 12-pack on the 4th?
Hey I didn't claim he had more credibility. I don't know about this kind of stuff, just making conversation and asking questions.
That's the maximum pressure. You should go with what the sticker on the door says.
Otherwise, I'd be currently riding on tires inflated to 50 PSI instead of 32 PSI.
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The sidewall is the MAX pressure. The pressure on the driver's door post is what the nominal inflation should be and the pressure that the manufacturer uses during testing. Tire wear will increase if too far above or below that pressure. Overinflation causes the center of the tire to wear faster, underinflation causes the shoulders of the tire to wear faster. I check my tires every second tank full, and weekly in the winter to make sure I get the best traction from my tires. Also when you get above the recommended pressure your Maverick will ride like a TRUCK!
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When I got mine from the dealer all four were at random psi amounts. They still are as well. 42 for front driver, 44 for front passenger, 44 for rear driver, and 40 for rear passenger. Why were they filled like this? I don't know, will probably never know.
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It’s for shipping purposes when tied down. The difference in pressure is probably time related..
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40 works great for me. The ride is fine, and higher pressures help prevent hydroplaning. Tire life will not be harmed by this pressure.
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50 in mine too. Gives a nice rough ride. I lowered it to 40 in each and the ride is a lot smoother.
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