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- - RPM's (https://mbworld.org/forums/e-class-w124/446540-rpms.html)

cojack1601

May 6, 2012 11:24 PM

RPM's

How many rpm's should the engine rev at when driving on the highway 60 mph ?:)

cojack1601

May 6, 2012 11:36 PM

Quote:

Originally Posted by cojack1601 (Post 5183134)

How many rpm's should the engine rev at when driving on the highway 60 mph ?:)

Saijin_Naib

May 7, 2012 12:08 AM

Was it necessary to bump it 12 minutes after posting?

It should be roughly "half" of what your spedometer says. So, if you're doing 60mph on a flat highway, look to see about 3k RPM.

chlippo

May 10, 2012 08:58 PM

if you can tell us what engine / tranny you have it would help.

I assume you have an M103 4 speed auto, if thats right the car should do 2700 - 3000 rpm for 60 miles an hour on a flat surface.
rpm will also depend on the ratio of your rear differential which i beleive should be 3.07

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