Bought 89.5 octane fuel recently because queued before price hike to pump and pump has no 91/2 octane.1/2 tank used ok.
Charged battery prophylactically on sunday without disconnecting.
Tuesday,today car has no power on hiway,slowed down to shoulder,car stalled.Started again ,ok,car still not as powerful as before.Check this list,checked the overvoltage relay fuse,seems ok.Hesitates to put in 120C$ relay if that is not the culprit.May have to check fuel filter,supply etc,3 yrs no change since po??
Tom 1992 300E 2.6