Date registered: Jul 2003
Location: New Jersey
Mentioned: 0 Post(s)
Quoted: 0 Post(s)
RE: Which is better gas to fill your car up with--Premium or Super?
Most modern MBs are designed for 91 octane. You should use this or whatever your preferred gas station sells that is closest to it w/o going under 91 octane. Usually that will be 93 octane. Don't go for higher octane than needed (or available) as you're simply wasting your money. Don't know where you're located, but in my neck of the woods Super and Premium mean pretty much the same thing. [:)]
A number of folks do use lower octane gas (not so low as to knock); with no issues. Basically, you have some loss of power. Some forum members have also reported fewer MPGs with reduced octane gas. You won't be doing any real harm to your car, but you won't be realizing its full potential either.
'08 C300 Sport/Barolo Red/Gray-Black Leather/6 SP/AMG Wheels/iPod/P2/MultiMedia/Tele Aid
'09 Pasion Coupe/Gray Metallic/Black Tridion/Comfort Package/Solid Roof/Premium Sound/Fog Lights/Clock-Tach/Anti-Theft/Navigation/Bluetooth