metrompg.com series | Highlighted on Fuelcons
In this further post published on metrompg.com, the impact of tire pressure on rolling resistance was assessed using two different vehicles: a 1998 Pontiac Firefly (Geo Metro) and a 1999 Toyota Camry. The experiments were conducted on a paved slope with flat run-out. The methodology involved inflating the tires to different pressures (20 PSI [1.38 bar] to 60 PSI [4.14 bar]) and then letting the cars coast down the slope with engine off, transmission in neutral, and brakes released. Distances to marked “stop points” were measured using a distance measuring wheel (some kind of).
Continue reading “Snapshot: effect of tire pressure on rolling resistance”