2nd Gen R60 Countryman Most liked posts in thread: Tire Pressure Question

I would ask the dealer why they did it. You will bet better gas milage. :idea:

 

When our MINI was serviced at the dealer, the pressures came back correct (32 psi.) But, with some of my other vehicles going to dealers and other service providers, I would get them coming back with pressures all over the place. From correct to over inflated by 10 psi. I put it down to sloppy work and correct it myself. My take on this is to make sure my gauge is correct and go with manufacturer's recommendations. (I admit to being a bit of a stickler on tire pressures. Comes from years of cycle riding.)

 

38 psi is listed in the owners manual as an alternate for high speed driving

my oem 225/45R18 pirelli p7 summer rfs rode much better at 38 psi, so much so that i borrowed a buddy's tire pyrometer and ended up at 42 psi in front, 37 psi in rears

at these pressures, the tires were at the same temp all the way across the tread ... at the stock 32 psi, the edges of the tires were much higher temp than the center, indicating underinflation

i have since changed to 225/50R18 michelin pilot super sports and using the pyrometer am running 40 psi front, 35 psi rear

my winter tires, 205/70R16 dunlop grandtrek sj6 also ended up at 40 psi front and 35 psi rear using the pyrometer

 

I use the old trick of marking the shoulder and seeing where it wares to set pressures.