slySTANGguy

From everything i understand is higher gears make you burn more gas because you are at a higher rpm at the same speed when on the highway. But is that true?

I wanted to know if being at a higher rpm burns more gas. From what i understand the engine is moving faster, but the throttle body position and the load of the engine is what determines how much gas is injected. if cruising at 3500 rpms versus 2500 rpms would it be possible to use less fuel because the engine makes more power at that rpm and is hence more efficient.

I was hoping this was true, if it was then i would definitly go for the 4.10 gears. Thansk everyone

howarmat

try this

http://tinyurl.com/5oogl6

Argonaut

As a Reference: 4.10:1 Gears, 255/14/18 tires - my highway mileage at ~70 mph is 22-24 MPG. Overall Driving its in the 15-18 MPG range depending on what I'm doing. On the autoX course its ~10MPG or less LOL.

oothejoo

All highway I get about 23ish
All city its around 18
Its really not a huge difference from what I was getting stock.

Vapour Trails

I'm going on a 4000 mile round trip starting Friday. Crusing speed should be 75 mph. I'll let you know what my mileage is. I'm hoping for 20+ mpg.

tcsbgdady

Go Fast = Use Gas. It is that simple.