Talk:Cummins M-series engine

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i got a question about an over heating m11 engin i got on my 97 fld. ....my mechanic told me it is normal for engin to run at 220 degree is it. i say ? so please can some one tell me is it or not. now im not that very new to driving trucks. and not very good as a mechanic. but i know that HEAT is engines worst enemy so please i realy could use some straite ansewer thnx. hk trucking owner hormez


 * Heat in combustion chamber improves fuel economy, I was taught in 4H, when I was 10. Going from 160 to 190 with a good thermostat, is supposed to be good for a 10% improvment in economy on a deisel. If the temp stays stable even after a long pull, the thermostat is controling the temp in the motor. The radiator has cooler water for the engine if the thermostat lets it flow. OLD retired farmer.


 * No, 220 degrees is to hot, thermostat opens fully before 205, and should never exceed that. —Preceding unsigned comment added by 216.81.193.253 (talk) 21:47, 18 September 2007 (UTC)

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