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[SANDDOG]

Originally Posted by Long & Winding road

I can see your point but it does "seem" like its using more fuel efficent at a lower RPMs. If the engine is spinning faster, the intake and exhaust are sucking in and exhaling more so therefore more fuel being burnt? I dont know but it make sense.

But if you dont change your throttle positon (at Hi RPM or Low RPM) are you really using more or less fuel? Perhaps since its all computer controlled it will add more fuel as needed??

I dont know ... just a thought.... GMtech can answers these better than most of us.

I think as long as you dont bog down your engine (with an automatic it should not allow its self to "bog down" like my manual trans Jeep can) and it stays in a good torquey part of the power band I would think that would be more fuel efficient at a lower RPM.

Perhaps running at 100% peak torque at all time no matter what Rpm you will "win the race" to the finish line but be less fuel efficient??

But I think I would pick "comfort" (Less engine noise) and what I perceive as "easier on the engine" (AKA lower RPM) over MPG anytime.

I agree with you 100% FORD is a low torque motor and any gas motor last twice as long if you don’t tear into it rpm wise. I’m trying to find a solution for overshifting ON down hills when not needed the RVs are way too high. It sounds like five star or the other is the way to go. I love this thread