I have also heard that the amsoil version of it(MTG 75w-90) works just fine. I am getting ready to put it in when I drain mine and add fast coolers. $12.85/qt. sure beats the $20+ my dodge dealer wanted, especiallt\y when it'll end up taking ~7.5 qts.
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Gil
04 2500HD RCLB LB7
VALAIRPureDieselPowerMumau DieselHamilton Cams
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