I’ve heard mostly bad about the 6.0. I have had some problems but you can see my signature; it speaks for itself! I change oil regularly and use the suggested oil that Ford told me to use.
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2011 GMC 4X4 dually CC, 6.6 Duramax with Allison Transmission. Formally 2001 Montana,2007 3400RL Montana, presently 2018 3401RS Alpine.
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