Drove 10 hours straight and got 10.7 mpg...

[OrangeCrush]

Usually running 75-80 mph with 38's and 4.56's nets me about 8.8-9 mpg on the highway.

On the way down from NC to Florida, I purposely kept the instantaneous mileage showing so I was constantly aware of how hard I was pushing the pedal.

Even while running almost 80 for 90% of the trip, I averaged almost 11 mpg.

I was thrilled to death. I was driving 68-72 for the first tankful and averaged almost 12 mpg. WOW.

I can't wait to put the supercharger on. I won't have to have the truck go into overdrive on the hills... should use even less gas.



Mark

[K9sH3]

Welcome to FL.

[timgco]

456's?

[KenP]

Originally Posted by timgco

456's?

Gears.

[ROX]

I call B.S.! nu uh, no way...

[timgco]

Originally Posted by KenP

Gears.

I know there gears.

I was just wondering why the swap?

you have 38's? and stock gearing?

So I was just curious.

[OrangeCrush]

Originally Posted by timgco

I know there gears.

I was just wondering why the swap?

you have 38's? and stock gearing?

So I was just curious.

Tim,

I installed the 4.56's to make up for the 38's. It helped but the truck still needs the supercharger.

Mark