Quote:
Originally Posted by DCB
....Is there a point at which I should worry about RPMs?
|
A V8 such as Chevy has a higher RPM limit than the inline 6 of a Ram. The higher the RPM; the more inherent braking power it exerts. The on board computer won't let the engine exceed the RPM limit. Never the less, I would try to test it. I usually find 3000 to 3500 RPM is the most effective point for my V8 truck. Sometimes it is 3rd gear at 3000 RPM (around 45 MPH) or 4th gear (around 60 MPH) depending on the road. Your Chevy might have different "comfort" spots. This allows me to cruise down the hill without having to use my brakes.
I drive 6 and 7% grades frequently but apply the same techniques on the "super" grades of CO. I am less concerned with the speed limit compared to keeping the whole rig under control without dependence on the brakes.