As you probably know the diesel engines don't rew very high. Passing 2,500 rpm has no reason especially when accelerating, since the max torque is generated 1,750 - 2,500 rpm.
So, when warming up, gentle acceleration not passing 2,000rpm is better. I use that rule and my T5 engine is very quiet compare to many others I saw and listened. Remember not only engine needs worm up all other moving components too like, gearbox, wheel bearings etc. Once warmed make sure you rew beyond 3,000rpm in 3rd gear to exercise the turbocharger – once a day is enough, more often will not hurt. I do it up the hill.
So, when warming up, gentle acceleration not passing 2,000rpm is better. I use that rule and my T5 engine is very quiet compare to many others I saw and listened. Remember not only engine needs worm up all other moving components too like, gearbox, wheel bearings etc. Once warmed make sure you rew beyond 3,000rpm in 3rd gear to exercise the turbocharger – once a day is enough, more often will not hurt. I do it up the hill.
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