highway speed/rpm

I was just on a short highway trip and I found that I drive at about 120 to 130 km/h which is about 2700-3100 rpm... I feel like i'm really pushing it if i go any faster.

so, what speed/rpm do you drive at? is it hard on the truck to run at over 3000rpm for a long period of time?

 

good, i figured it would be fine. what do you run at now with the 6 speed?

 

with the auto I pull ~2200-2300 rpm at 80 MPH

 

when i wanna save gas, i like to keep everything under 2k, including the shifts

 

yea the 6 speed must be nice.

1st gen guys whatchya think?

 

No Idea. Have no tach.

 

thats lame

 

i cruise about 68- 70 and its right under 2k. Thats where i seem to get the best highway mileage.

 

6 speed 80 is getting close to 3k rpm

 

you 2nd gen guys can go away.

haha kidding, but come on 1st genners!

 

Rolling 70ish I'm around 2300. Used to run 90 from Phoenix to Yuma at around 3300, no ill effects.

 

If i went to a bigger tire, I would be at a lower rpm correct?
(losing power and torque of course)

 

yes, but I doubt mileage would improve

 

hmm, I wonder, because at highway speeds it would take less rpm to go the same speed... in the city it would be worse for sure.

 

good point, with the extra weight and coifficient of friction (air resistance + static friction from the road surface) to deal with, I'm sure it's a bell curve (too big a tire = worse highway milage)

 

yea there must be a happy medium

 

I'm just a little over stock on mine, and it seems to me that I didn't gain anything on mileage (it came with these cheezy firestones and I went to BFG AT) - been a long time though and I was smoking too much back then. No firm numbers recorded.

 

yea I didnt record my numbers before going to the 265 75 16 bfg at either.

 

well good luck with your upcoming lift, stay cool in b.c. - later