What's the scoop on biodiesel as far as engine life (7.3l Powerstroke turbo)? Shorter, longer, the same? Also, would there be anything different when it comes time for a tune-up, etc....Thx.

Sidewinder~~~~~

We have quite a bit of bio diesel in Colorado. Several RTD and school bus fleets are using it. There is also a diesel dragster of Scott Benz that uses 100% bio diesel. 20% seems to be where the manufactures aren't worried about it. On the waste cooking oil that some folks are using, it's recomended not to excede 5% by Bosche on their injector pumps. It seems to corrode rubber seals at high levels. I'll be doing more research on bio diesel with some articles. With diesel prices over $3, bio diesel is priced the same around here, giving us a option over imported oil.

I ran B20 all summer with no problems at all. Locally it was about the same price as regular diesel. Didn't really notice much as far as power or mileage improvments but then again my foot is usually on the floor! Ford doesn't recommend a blen of more than 5% Bio so if you have a warranty, you may want to think twice about it. I like it enough I'm considering making my own when the weather warms back up enough that I won't have to worry about it gelling.