|
85-95 km/h keeps the engine more in its torque peak and better able to handle any variations in terrain. The 3800 Series II has loads of torque at 1400-1600 RPM. At 58 mph or 95 km/h my Buick is running ~1550 RPM. It's happiest between 90 and 100 km/h, in my experience. Much lower and you're dropping into 3rd and much higher fuel consumption a lot more with any acceleration, and unable to force a shift to 4th until hitting ~75 km/h again.
__________________
2012 Chevrolet Cruze Eco 6MT
|