Thanks for the help guys, I think that I will just leave well enough alone.

I have never had gas mileage as good as mentioned above. My car could not break 30 mpg going downhill with a tail wind. The best it has ever done (and only once) was 25 mpg under almost perfect conditions on the interstate a few years ago. Typically, I get around 17-18 mpg back and forth to work. During the summer, when school's out and the traffic is not as bad, I will average 19-21. With mostly highway driving I will get 22-23.

Not very good for a light 3000 pound car with a little 2.6 liter 6 cylinder that doesn't even have very much power. With premium gas well over 2 bucks/gallon now, mileage is more of an issue than it used to be. Just another little factor to add to the high price of ownership to keep the old Benz going. So for now, I'll keep paying.

Thanks again,

Wayne