had a guy i know that ran used motor oil in his 7.3 that he filtered down using home water filters. he ran some ridiculous percentages as well, like 50% he told me once???
said he read it on some diesel forum, had issues with injectors etc... but he still does it.
i drove the truck once and my eyes were watering from the fumes.
edit: i never fully investigated this option until just now after i typed this response, and it seems pretty established. i might set something up to be used in our diesel equipment, id never try it in the trucks though...
Last edited by PTSolutions; 10-06-2010 at 05:35 PM.