LB7 Duramax Maintenance Schedule, Fluid Specs, And Parts - DR
best oil to run on a duramax|TikTok Search
Engine Oil Cooler Gasket & Seal Kit for 01-10 Chevy Duramax 6.6 LB7 LLY LBZ LMM | eBay
Just wanted to check what engine oils do you guys use and any recommendations which brand is superior. My brother uses Amsoil while I use the one from Shell. : r/Diesel