SL/R129: Correct engine oil for my 1991 300 SL
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Junior Member
Joined: Nov 2012
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1991 Mercedes Benz 300 SL
Correct engine oil for my 1991 300 SL
I am getting conflicted information regarding the correct engine oil for my '91 300SL. The One mechanic says that I should be using 20-50 conventional motor oil. The reason being that the older engines don't have the clearances/tolerences that the newer engines have.
The other mechanic says that the synthetic I have been using is fine and not to change back. Does anyone have any information that you can share with me?
Thank you,
Phil
The other mechanic says that the synthetic I have been using is fine and not to change back. Does anyone have any information that you can share with me?
Thank you,
Phil
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Joined: Jan 2009
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From: V E G A S
1922 Ford Model T / no OBD
Bookmark this page and check occasionally for updates
https://bevo.mercedes-benz.com/bevol...ets-sort1.html
Tip - sheet 223.2 list the engines. Once you find your engine there, it will give you classification number and later list of approved oils.
If I can't find vintage engine on the list, I just follow the recommendation for its younger brother.
https://bevo.mercedes-benz.com/bevol...ets-sort1.html
Tip - sheet 223.2 list the engines. Once you find your engine there, it will give you classification number and later list of approved oils.
If I can't find vintage engine on the list, I just follow the recommendation for its younger brother.
