Correct oil in 2800cs or any early bmw engine

Bob

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A few years back I got a case of 30 weight penzoil in the old cans. The stuff was sealed probably 30+years old. I used it all up in the coupe. The engine sounded great very quiet valve train. Then when I ran out I had to use the current oil and its not as quiet. What's the best weight/brand available?
 
If it's only quiet you want then use 95wt.

You are missing the point- quiet isn't the goal. Lubrication is.
 
this has been beaten to death in seveal past threads so try searching for "castrol" "valvoline" "20w50" etc.
 
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