Curt wrote:
"The best I got with my '83 240D was 28mpg. I think it was happiest between 60 and 65mph which seems to be about the same as my 190D." The best I ever got in my (now OK Don's) 1990 300D 2.5 was 34 mpg. That was exclusively highway miles. Most of the time it was more like 29-31. I once got 35 mpg in my 1990 Oldsmobile 88. When I say once, I mean one tank - it was a long highway trip. I was following someone that kept it at 60-65 mph for miles and miles. I know that sounds crazy to get that in an Oldsmobile, but there was something about the 3800 engine in 1990 that was especially efficient. I usually got about 31 mpg. I never could get that in my 1987 Oldsmobile 98 or in my 1992 Olds 98. My brother has a 1973 Cadillac Sedan Deville. It has a 472 in it. He gets about 7-8 mpg. Donald H. Snook 1990 300SEL 137K
