octane 95
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W140 S500 Octane Grade
Hello! Recently purchased a W140, S500, 1996. The previous owner strictly advised me to stick to 95 rather than 91 octane grade fuel whereas the operator's manual recommends Premium Unleaded Gasoline: Posted Octane 91. Could shifting to 91 make any difference on performance, engine or the...- Raja Taimoor
- Thread
- octane 91 octane 95 w 140 s500 1996 w140 fuel
- Replies: 26
- Forum: Engine, Drivetrain, Fuel and Exhaust
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