Are you supposed to fill your suv tires what it says on the tire (psi) or what it says on your suv id bagde?

Question

my tires say 42 psi on the side of the tire, but took the car to jiffylube and they said your tires need to be what the badge on the driverside door says which is like 34 psi. now my tires look real low and they sound like im burning out even on the smallest turn ( like a drive through).

Answer 1

For once Jiffylube is correct.. the 42 psi on the tire is the rating of how much load it can carry at that maximum pressure.. unless you are carrying an extremely excessive load in your SUV you should run the recommended air pressure on listed on the driver side door sill or in the glove box..over pressure will cause erratic steering and wear out the middle tread prematurely.

Answer 2

Go with the pressure listed on the car's sticker, or in the owner's manual (31 PSI). The car's weight is the most important factor in setting tire pressure. Use a good tire gauge. The ones built in to air pumps at gas stations can't be trusted. The number molded into the tire is the absolute maximum the tire can handle without risk of explosion.

Answer 3

What people said about using the recommended number on the car is correct. Tires have a general recommended psi printed on them, but car manufacturers determine what the actual psi should be based on the car's weight, suspension, and optimal handling characteristics.

Optimally, you should set the psi on the door jamb with the Original brand tires, but always go by the door jamb psi no matter what tires you use. Also, you can generally run 2-3 psi higher than what is published on the door jamb to get better mpg, better traction, and a slightly cushier ride.

Answer 4

the psi. on the tire is the maximum it will take , the psi. on the door is for comfort and ride , somewhere in between will get you better mileage and not give you an "oxcart " ride, all radials look a little "flat" and the scrubbing noise is what you get with " off road " tires and vehicle in the city.

Answer 5

The pressure listed on the tire sidewall is the maximum tire pressure, or the tire pressure that is required to carry the maximum load of the tire. It is not the manufacturer's recommended tire pressure, which is a common misperception. The placard on the car door post is the proper rate of pressure for tires on that particular vehicle.

Answer 6

Use the psi on your tires..and 8psi is not a huge difference, but it might help your gas mileage a little. It probably will have no effect on the sounds in tight turns...it sounds like you got wider tires which will scrub more when your make turns.

Answer 7

Fill the tires to the pressure recommended on the vehicle. Your tires show the maximum capacity, but the manufacturer of your suv tests how the vehicle will react in panic stops, abs situations, traction control situations, etc...

Filling the tires to their maximum may give you a much stiffer ride, and less control of your vehicle under panic situations.

Answer 8

the badge on the driver door is what the vehicles manufacturer recommends to use to maintain ride quality. the side of the tire is what the tire manufacturer recommends for the longest life of the tire.

Answer 9

Always follow vehicle manufactors recommendations, for your safety. also remember to check the tire psi when your traveling through different weather climates, when loaded down and for fuel economy. for once jiffy lube is actually right

Answer 10

always go by what it says on the tires that's the recommended pressure for that type of tire,don't go by the sticker,that only applies to the original tires that was on it,,if you run them low you,ll ruin them,i know i sell a few hundred tires a month,,good,,luck,i hope this help,s.,,i own a repair shop,and do this for a living.