Originally Posted by Da M3nace
Hello everyone, I am on Long Island and Premium gas is almost impossible to find. Anyone familiar with the negative effects of using regular gasoline in our engines? I had about 1/4 of a tank with premium gas when i topped the car with regular gasoline from Gulf. The manual sais temporary use of lower octane gas is ok but im still worried...
I dont think its terrible... but I wouldn't go out of my way to run it longer than I had to ... had an 02 325ci that we ran regular in for 80k miles with no problems.. traded it in for a clk350 convt