jd87 said:do they even check it anywhere in oregon? never heard of "dipping" by a cop or anything. many people i know run it. we always said if we ever got in trouble, we'd say that we ran empty up in the hills and some loggers filled us up with off road so we could make it back to town. me and my dad finished off our last 500 gallon tank about a year ago because it's still more expensive than veg oil. if there was no off road in the tank and they found red dye in the filter they couldn't prove you ran it while "on road". just say you were "off road" that time.