Chevy and GMC Duramax Diesel Forum - View Single Post - 2011 Allison/4x4 fluid change intervals
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post #8 of (permalink) Old 12-18-2019, 06:46 PM
Sierraluva
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78k miles isn’t a lot. However, if you pull a fair amount then it’s a good idea-not necessary-but won’t hurt a thing. Maybe just wait and get fluid here and there and change it at 100k. And do it yourself. I did all my running gear fluids for around $175 or so. Including an internal trans filter. Most local auto stores will take the old fluid too.



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2012GMC2500CCSB
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