Heres one for ya guys. What would it take to convert my 97 LX450 into a vegetable oil burner? I know you need to replace the gas engine with a diesel engine and by the conversion kit and have someone install it all, but what engine would you possible use and what would it cost? Has this ever been done before? I was just watching re-runs of Rob & Big and Big Black did it to a Pinto and it got me thinking. I plan on keeping my truck for quite some time and was wondering if this was even doable. What do you guys think?