I own a 1994 E420 model mercedes that calls for premium gas. I have always put in premium gas until today when I wasn't think and just wanted to get to work so the weekend could come. I ended up putting 11 gallons of regular in my car and 4 gallons premium. I was very worried and went into the store and bought and put in a bottle of octane booster. The car started fine but didn't drive as well. I haven't put my foot into it and slowly gained acceleration. My husband was saying that I need to run the car until it's chugging out of gas type empty, so when I do fill it up with premium the regular won't delute it. Is there anything else I should know regarding regular in a premium car?
Thank you
Sharlene