I would like to let people see and watch this as it unfolds. A person who we do not know has taken it upon himself to do some testing of our additives and what effect they have on mileage on his TDI. Its a pretty interesting read.

The results so far are in post 3. He is in his second run trying to duplicate the results.

Real-World comparison test: Optilube - TDIClub Forums

 

Nice post. Really liked the info there..

 

Just cause it works in a little VW doesn't mean it'll have the same effect in my F450 pulling trailers from Indiana to Texas and often a trailer back that way. The TDI is a great little motor. but not exactly the same as a 6.7Power Stroke. I sure wish I could get that kind of mileage though.