What is the Best grade gas for a 1984 380SE

Status
Not open for further replies.

Myros

Senior Member
Joined
Aug 16, 2004
Messages
2,741
Reaction score
22
Location
in the great , grim 'oop north
Your Mercedes
R107, S211, R170, C219
fuel grade

Definitely Super or Super Plus or whatever they call it at your filling station. 97 octane. Have a look at Brocquet Fuel catalyst. You might find it an interesting idea. if you run "normal" 95 octane unleade, don't hammer your engine, and listen for pinking under load. it's a dead giveaway that you need higher octane fuel.(or you need to adjust your ignition timing, but let's assume that's okay for now)
 
Status
Not open for further replies.
Top Bottom