[Night_Sailor]

Originally Posted by elhigh

It's nice to see this not in the Unicorn Corral. 11% is a more realistic claim than some of what gets touted there.

Start a garage entry for your ride. It's possible some of the (more talented than mine) eyes looking over your results will spot a detail that can steer you to more positive results.

Finally, go look at Diesel Dave. I don't know what the hell he's doing but he's got a truck not too dissimilar to yours and is pulling in 50mpg. I think that might be what Lone Starr would get if he poured concentrated Schwartz into the fuel tank.

I don't care if you believe me or not. I am typically skeptical too, so I'll put more data together. I'm happy for the extra range. The cost for the Optilube offsets the fuel economy gains partially. I save some money and go farther. The later is my primary goal. My larger fill ups, provide increased accuracy. I plan to try 2 cycle oil. It seems to be nearly as effective from what I've read, and much cheaper.

I bought a 1987 Mercedes 300TDT early this year. I've seen outlandish fuel economy claims on that with one guy claiming 40 mpg. He was measuring with a quarter tanks and his errors were high.

I've established a baseline on my car and have all the previous owners records, including fuel economy records. Fuel economy on that car is 19 (with lots of idling) up to 26 I think. I've been getting about 24.5 or better for highway. I live on a steep hill and need to gun it to get the turbo to spool up. Driving a bit faster I see a drop of a few mpg. I just took it off synthetic motor oil and it seems to burn less oil now. I'll try some Optilube in it. The smaller tank will reduce my accuracy some It's only about 14-15 gallons on fill ups.