Anyone with a Lilac Black Pete? or Black Lilac?

It's not too bad although I would like to get it a bit lower. I don't really look at mileage though, I mostly look at fuel usage as a percentage of revenue.

 

All depends on what kind of person is running the foot feed!! 3:91 will get good fuel milage cause it isn't reved high when cruising highway speed say 105 kms @ 1450-1500 rpm, where a 4:10 would probably be around 1500-1550 @ 105kms. 4:10 will pull better on the hills than 3:91's, but not to much difference.

 

in my opinion 3:91 still to much I will probably go with 2:47

 

Your kidding me right? Stick to commenting about things you know about.

 

Forgot to answer, I haul pretty much all tridem highboys with 56-58,000lbs of pipe on board. I mostly run around 112 on the highway and it sits about 1650rpm.

 

That rpm might be the reason your at 60/100 Nate, my tri drive gets 48-53/100 when I keep the top gear in 1400-1450 range. I think for o/o getting 4:10 gearing is back breaking economy. Someone on the forum was running 3.6 or 3.4 down stateside and I wonder how that would work in a truck if the transmission had enough low gears.

 

your boyfriend's truck isn't PINK I get it,

 

didn't I said 3:91 it was to much