Wisconsin Q7

My 2017 with 15,000 miles had the tire pressure set at 30 psi from the dealer/factory.

The side of the tire said max pressure is 50 psi. I like running at the max pressure - so i took it up to that level.

Surprisingly, my mileage increased (1 mpg) and the ride stayed the same.

NABS4

You'll have increased tirewear in the centre of the tires. 18 psi above recommended is too high imo.

uberwgn

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Wisconsin Q7

I call over inflating going above the recommended max pressure - which I'm not.

Increase tire wear on the center.......okay - but maybe at lower I wearing the tires on the outside. Is there a difference?

Eppieguy

Max pressure on the tire is for when th tire is carrying maximum load and unless you have your Q loaded with people and luggage and towing a heavy trailer you are not carrying maximum load. You will get very poor tread wear and they will not perform properly in an emergency situation with that much pressure.

J. Patterson

I too like the feel of higher tire pressures. I always run close to maximum load pressures on all our vehicles. On our 2011 Q7 the door sticker max load pressures are 44 front 49 rear. I have run three sets of tires now at 44 psi front and rear. ( 49 rear when towing my track car or boat). 50 psi sounds a little high but 40-- 45 should be fine. We have gotten about 35000 miles from Continental DWS at these pressures with very even wear across the tread.
Our newly purchased Pirelli Scorpion Verde plus have a 740 tread wear rating. I expect to get 50000 mile from them ( if we have the Q7 that long. It is a TDI)

superswiss

OP, you are completely misunderstanding the max inflation pressure indicated on the tire wall. That's not recommended pressure by anyone. Neither the tire manufacturer nor Audi. That's the maximum cold tire pressure that the tire is designed to hold w/o risking to blow up. Keep in mind that tire pressure goes up by 1 psi for every 10 degrees, so if you fill up your tire to 50 psi on a cold winter day, you'll be over what the tire is designed for as soon as outside temperatures raise.

Not only will you have severely compromised tire wear, because the tire is now ballooned at the center and doesn't make full contact with the road anymore, but because of the reduced contact patch, you'll have compromised handling and braking. Yes, your mpg went up, because you lifted part of your tire off the pavement, so you reduced the tire's rolling resistance, but that puts you and your tire at risk.

The recommended max tire pressure for a specific vehicle's weight is indicated on the door sticker. You'll notice that's significantly below the tires max inflation pressure. Not only leaves that plenty of head room before the tire is operated at its inflation limit, but it also is the proper tire pressure for the weight of the vehicle, so that the tire makes full contact with the road. If you check your owner's manual there is something called recommended normal load pressure. That's the pressure you should use if you are just driving around by yourself with the car mostly empty, because of the lighter weight of the vehicle.

1stq7

When I took delivery of my Q, my tires were set to 49psi. Not sure why? I then reset the front to 34 and back to 37 when cold. I like to set them 2 above the door label.

SYMAWD

They are set high for when they are transported from the factory. The dealer should have set the correct pressures during PDI.

Also normal pressure is 32 front 32 rear for the Q7. For max load it is 32 front 35 rear.

EDIT: I see you edited your post.

plat27265

According to the Owners Manual for the 2017 Q7, here are the manufacturer recommended tire pressures:

For Normal Loads (i.e. Up to 3 people):
For Maximum Loads:
As SuperSwiss mentioned in his post above, the maximum tire pressure on the tire's side wall is the maximum cold pressure the tire can handle. 50 psi is way too much tire pressure!