John Reames wrote:
"Where I buy, Diesel is 2.59 and High-test is 2.59... Does anyone here put low-grade in their MB gassers?" I always thought that the use of premium gas in most cars was a waste of money. I still that is true for an average everyday (chevy, Ford, whatever car). When I got my 1990 300SEL I was only putting in premium because that's what MB says to use and it seemed like a good idea. I kept thinking that one day I would buy the mid grade and see if I noticed any difference. While I was aware on a trip for work, I pulled into an unfamiliar gas station and pushed the wrong button and ended up putting in 18-gallons of regular 87 fuel. I had a few gallons of premium in the tank. I thought, well this is my opportunity to see how it runs. I am a believer now. It ran worse. It was noticeable. It pinged and hesitated and didn't climb hills as well. I ran it down to half a tank and filled up with 91 again and it seemed to improve. By the time I ran the next tank through it was back to normal. I will not use anything but 91 (or 93) in my again. Donald H. Snook 1990 300SEL 133K
