mdjdc Posted October 23, 2006 Share Posted October 23, 2006 I have a D/R 5spd and want to know whether I should use gl4 or GL5 lube in it. The owners manual seems to say GL5, but I wanted to be sure. I'm looking at the BG ultraguard. Thanks guys, I did a search, but came up with little definite info. Link to comment Share on other sites More sharing options...
NoahDL88 Posted October 23, 2006 Share Posted October 23, 2006 If the manual says GL5, then use GL5 Link to comment Share on other sites More sharing options...
bgd73 Posted October 24, 2006 Share Posted October 24, 2006 I have no clue about gl-1 though 5 is that a rating? "A GL-4 or, to a greater extent GL-5, lubricants can, if not properly formulated, become corrosive to yellow metals if the lubricant temperature exceeds 250 degrees F. The API recently came out with a new specification to address this possibility. It's called MT-1. Link to comment Share on other sites More sharing options...
GeneralDisorder Posted October 24, 2006 Share Posted October 24, 2006 Use the highest rating you can get your hands on - they are backwards compatible. GD Link to comment Share on other sites More sharing options...
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