Interestingly, when you enable the Efficient Dynamics feature (can turn on with aftermarket coding), recommended shifting for maximum fuel efficiency occurs between 2,300 and 2,700 rpm depending on the gear.
Quote:
Originally Posted by pbonsalb
For daily driving shift where you want as long as you do not lug the engine. The S65 does not have much torque and won't pull the car up much of a hill in 5th gear at 2000 rpm although it could probably trundle along fine on level ground at that rpm. Lugging can damage the engine. Some people may do most of their daily driving shifting at 5000 rpm, others at 4000 rpm and others at 3000 rpm.
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