doropallo, please check our tire pressure.doropallo said:I just drove across PA, from Philly past Pittsburgh, and averaged 19.47 miles per gallon. Never went over 70MPH. Still couldn't break the 20 MPG barrier.
Here at this government site, it says:"......Just one psi under-inflated can reduce fuel economy by 3%.". It sounds pretty dramatic, but I wouldn't be surprised if it is true. I ride bicycle a lot and I always inflate the tires to the maximum 70 psi. The bike feels a lot lighter with fully inflated tires. The difference becomes very obvious when the pressure drops to 55 psi.
Outlook has the high pressure tires. Maximum pressure is 44 psi, not the old 35 psi. So if you are inflating it to 30 psi, you are under inflating it. I think most of the new tires are 44 (my Accord's tires too). I have always inflate them to little over 40 psi, never blew a tire because of over inflation.