3aresExplorerJan 14, 2017oil gradesMy new 2016 Ford Power Stroke F 250 diesel recommends oil 5w-40 syn. oil for towing. I’ve been using 15w-40 Shell Rotella. What oil have you been using?
Old-BiscuitExplorer IIIJan 14, 2017Been using 15W-40 Rotella since new (2006)Full Timed for first 7 yrs towing 14K 5th wheel weekly.I am anal about oil changes.Change oil/oil filter every 5000 miles.......fuel filter every 10K and air filter when 'dirty'