Sweet spot for 4.10 gears
I've got the bullet proof vest on, shields up and ready. If this has been asked countless times before, I apologize in advance. What is the sweet spot for towing if truck has 4.10 gears and diesel? Te...
Forum Discussion
Cummins12V98 wrote:
^^^^^^^ Dude where the HE!! does all that info come from??? Your brain must be very cluttered.
I tow mostly at 60 in 6th at 1,750 rpm's combined 33k average all conditions 9mpg. Any faster I get worse mileage. Any slower I get better. Less clutter in my brain. :B
True, mechanical losses and drag increase with RPM and speed. WOT calculations are only useful if operating at WOT, which none of us do unless climbing steep grades. At least I don't.
With turbo diesels with quite flat torque curves, if you stay some ways into the fattest part of the curve, HP differences will be smaller with changes in RPM. That's my theory anyway.
