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NECIL | We have a 2009 ISM in our T800. Didn't know how I'd like it since I've really only had experience with a C-12/13 but I love it. Plenty of power and gets decent fuel mileage. The last truck I drove when I hauled fuel full time had a C-13 in it that was an oil hog. Always needed a gal at 5,000 miles after an oil change and then another gal every 2,500 miles after that. My C-12s always took a gal by 10,000 which I thought and was told wasn't bad. I don't recall adding much to the ISM this summer, maybe a couple quarts. So far it's been a good motor. | |
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Cummins ISM- Good or Bad?
