jdrslyr75 Posted December 28, 2008 Share Posted December 28, 2008 I'm trying to figure out at what engine RPM the E7 ASET's get the best fuel mileage. I found a good road speed calculator and it seems like the rearend ratios in the used Macks I have been looking at are much lower than most other manufacturers. As a former Cat technician, I know that their engines like to cruise around 1500 RPM for fuel economy. I'm just wondering where the E7 ASET likes to cruise.Thanks,Jeremy Quote Link to comment Share on other sites More sharing options...
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