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Old 06-26-2009, 01:02 PM
hobbitss's Avatar
hobbitss hobbitss is offline
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Join Date: Sep 2007
Location: Boston South Shore
Posts: 231
Quote:
Originally Posted by KarTek View Post
Welcome to another truck guy! The engine is IDI and that's why it revs like a gasser and is happier at higher RPM's. It's like a mini 24 valve cummins with IDI and an inline pump.

As for the most effecient RPM, I think around 2000-2200 but that only adds up to around 60 MPH or so. best MPG I've gotten so far is 31 cruising around 65-70.

I'm currently installing some gauges so I'll see what EGT's are for a given speed/power setting.
RPMs Sound about right, mine runs 2350 at about 65 and 2500 at about 70 mph... My high is about 34mpg average is about 30-31 mixed driving...
Cruise control set to 68 mph up here gives 32 to 33mpg...
If you get a nice level road with speed limits 45 to 55 you can see high 30s to low 40s... Makes me smile...

YMMV
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1998 E300D turbo 240K + Miles
2000 Dodge Dakota 122K + Miles
1992 Mazda Miata Autocross Machine 143K + Miles
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Last edited by hobbitss; 06-26-2009 at 09:24 PM.
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