David, re >Oil does not wear out, it justs becomes > contaminated. If you are removing the contaminants just as fast as they are > created your oil will last almost indefinitely.
Was led to believe that oil is subject to two kinds of contamination, particulate and chemical. The bypass filter sounds like it will take care of the particulate contamination. Testing the oil should give an indication of the degree of chemical contamination. (fuel into oil,breakdown of oil additives etc) My '82 Hilux with 2L diesel engine is a particularly smokey performer ( hope to alleviate that with biodiesel in the future) and contaminates the oil heavily with carbon (rings aren't what they should be after 350,000km). Would a bypass filter remove this contamination and if not what would be the result continued buildup of the carbon with prolonged oil usage? Thanks, Paul. Biofuel at Journey to Forever: http://journeytoforever.org/biofuel.html Please do NOT send "unsubscribe" messages to the list address. To unsubscribe, send an email to: [EMAIL PROTECTED] Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/
