Ideal tire pressure for gas milage & wear ? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

1979 GMC Sierra · 07-13-2011, 03:38 AM

Just curious as to what you guys feel is the ideal tire pressure for gas milage as well as for less wear and tear on the tires ? I have 245/75/16 tires on my truck. Max pressure on the tires is 88 psi. Right now i'm running them all on 70 psi. The gas milage on hwy driving seems to be decent, although the ride is a bit stiff on rougher roads. What do you guys think is best for gas milage based on your experience ? Is 70 psi decent...or should i go higher or lower ?

07-13-2011, 03:38 AM	#1
1979 GMC Sierra Registered User Join Date: Nov 2010 Location: Niagara, Ontario Posts: 268	Ideal tire pressure for gas milage & wear ? Just curious as to what you guys feel is the ideal tire pressure for gas milage as well as for less wear and tear on the tires ? I have 245/75/16 tires on my truck. Max pressure on the tires is 88 psi. Right now i'm running them all on 70 psi. The gas milage on hwy driving seems to be decent, although the ride is a bit stiff on rougher roads. What do you guys think is best for gas milage based on your experience ? Is 70 psi decent...or should i go higher or lower ? __________________ 1979 GMC Sierra 3/4 ton Camper Special 1976 Chevy Cheyenne 3/4 ton



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