Axial_Flow Posted January 13, 2021 Share Posted January 13, 2021 Hello, Question regarding my 1989 MS300 midliner with 6 speed RVI transmission. The manual calls for Mack EO-E oil, I assume this is engine oil? Any idea what grade would be appropriate? I am thinking either a 10W-30 or 15W-40? Please advise. Kind regards Quote Link to comment Share on other sites More sharing options...
0 Mackpro Posted January 13, 2021 Share Posted January 13, 2021 I actually had a manual for the 5, 6 and 9 speed RVI transmissions in my tool box . All it says is “ Gear Oil. MIL-L-2104D or MIL-L-2104C. SAE 40 weight “ Quote Link to comment Share on other sites More sharing options...
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Axial_Flow
Hello,
Question regarding my 1989 MS300 midliner with 6 speed RVI transmission. The manual calls for Mack EO-E oil, I assume this is engine oil? Any idea what grade would be appropriate? I am thinking either a 10W-30 or 15W-40? Please advise.
Kind regards
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