I have heard of people keeping their vehicle's tire pressure different in the front than from the rear. Is this done because of the vehicle's weight distribution, or because of the drive axle type, i.e., front wheel drive v. rear wheel drive?

Our 91, 740 has 54% front weight and a 46% rear weight. It is rear wheel drive. The recommended tire pressure is min 28 max 36. I keep it at 32 all around, but now question this. Which would get the 32 psi based, front or rear, and would I then just add or subtract the 4% difference?

Sincerely,

Robert

I live in Australia and keep 29psi in the rear and 32 in the front.....seems to run well, NOTICABLY less slippery rear in the wet with lower pressure too, best to keep the fronts higher as when you turn the wheels full lock, you are putting a lot of force right on the edge of the tire, no tire likes that.....i tried higher, but our roads are pretty bad downunder.....potholes are a killer with hard suspension and hard tires....

I think as long as you've got at least the minimum 28 lb, all the rest is matter of your tires, how you drive and what kind of ride you like. Higher pressures absorb slightly less of bumps, have less rolling friction, and feel better to me. Try some changes and see if you prefer one over the other.

I drive enthusiasticly, and keep 35 lb all around in my '88 760Ti.