My brother and I are currently in a heated debate over 2 topics of driving styles.

The 1st topic is about what gear to drive in and if it is detrimental to the transmission and engine. Currently in the truck is a fuel injected motor, with a 5 speed. I like to shift to a higher gear while driving, for example in a 25mph zone I will drive in 4th gear at a low rpm where he likes to drive in 3rd gear at a higher rpm. He states that having the engine run so low (approx 1500rpm) is not good for the engine and transmission where as driving at closer to 3000rpm is better. The major thought is I get better gas mileage and he is just putting a bit more wear and tear on the engine out by running it at a higher rpm.

Our 2nd topic of ongoing discussion is when driving up a hill is it more gas efficient to have the pedal pushed to the floor(again running at a lower rpm) in a lower gear or to downshift to a higher gear and have the rpm’s higher.


Chevrolet 1957 3800 dually flat bed.