Well I thought that inside my filler cover, it says use premium unleaded only.

I use 92 octane here in los angeles, but there is a place that sells 102 octane. I'd be afriad to use that because I dont know if my fuel system can handle it.

Perhaps 97 is the issue, do you have access to lower octane gas?

Perhaps you can dilute it down a bit with some 87 octane and see if the condition improves?

I'd Wait for a pro to answer this, I'm just guessing at things but thought it might give you some insight.

Alon

------------------
'92 300CE
Metallic Black (Blue Flaked) on Creme
Clear Corners
Black Grille Insert
78k Miles

Future Upgrades:
Sportline Suspension
17" AMG Monoblocks or EVO II's
94-95 Tail Lights
Euro Headlights
Chip
AMG Exhaust

Click here to Go To My 300CE Page