Jiffy Lube in the making? But Fink, anyone can change their oil in their own garage! There couldn't possibly be any money in that line of business... I think you should definitely be investing in something else -- perhaps a business that has plans for someday building a ceramic rotary engine that runs off pure hydrogen. Jiffy Lube -- no money there at all! 10 to 30 percent fuel savings using simple, safe, and inexpensive technology -- who's going to be interested in that? ;)