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#1
11-26-2013, 07:12 PM
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I have driven a few of the 8.1 K2500 Suburbans and those things devour fuel. 9 mpg highway and around 5 towing! OUCH! At least my 1995 got around 14 empty and 10 towing, (which ironically was the same mileage we got with the borrowed 2014 Cummins over the weekend).
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#2
11-26-2013, 11:39 PM
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I figured the 8.1 would be bad, but not that bad. It's sad that your 6.5 got only 130k before failure- maybe you'll find it's relatively minor-head gasket? The 5.3 in my 02 Yukon has 257k now, and hardly uses any oil. Original trans too. It's fine for pulling f- bodies on an open trailer, but it's kind of maxed suspension-wise. I'm looking forward to the Macgyver, I mean njsteve, elegant fix to the problem.
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#3
11-26-2013, 11:59 PM
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I also have a. 5.3 with 174000 miles and I've towed a open trailer and no trouble with engine or transmission . It's a 2000 Silverado 1500 . Hard to beat that engine.
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