the only issue i had was the initial clogging of fuel filters.
biodiesel is highly solvent and cleans out the 'gunk' from your gas tank(how's that for tech). this gunk plugs up your fuel filter pretty darn quick.
Therefore I suggest buying 5 or so sets of fuel filters, and being prepared to change them where ever they clog.
Usually after five changes or so the tnk is cleaned out and you are driving clean.
biodiesel has a high lubricity, and actually lubricates as it burns, hence the smoother running... i believe that if used early enough in the life of an engine it could extend it's service duty.
the biggest difference I personally notice is a smoother running motor & cleaner air around my car while it is running.
Petro diesel fumes are one of the most carcinogenic fumes on earth. In a city as large as seattle, this can make a big difference in local air quality. plus it's just nice to have a car that smells like french fries, right... better that smell waft in the window on a hot sumer day than petro exhaust, no?
