Originally Posted by
swof63
Gazza I think your Xtrail has a problem. If it’s a three-pedal manual gearbox, the relationship between engine revs and road speed in any given gear is fixed. It’s determined by the transmission gear ratio multiplied by the final drive ratio then moderated by the circumference of the tyres ie. the distance travelled per revolution.
You may have different throttle positions required to maintain a given road speed/revs in a given gear, but if the revs change for a given speed in a given gear then you have either slip in the system - most likely the clutch, or you are actually in a different gear. Best get that looked at. In an automatic with a torque converter the situation changes and slip is built into the system when not in lockup.
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