A mechanic mate of mine down here in Oz -  only uses
diesel engine oil as lubricant  in his petrol motor.
He claims that the detergent factor in the diesel oil
helps keep the oil galleries and motor free of sludge
and carbon deposits.  He doesn't know the pleasure of
driving a Vanagon but prefers to drive a Mazda  8
seater van.  Recently he was forced to strip down his
motor for a rings and bearing job.  Looking at his
block and head sure looks clean even with over 200,000
kms on it.

With all the previous postings about different oils and
the synthetic vrs fossil question,  I thought I would
throw this titbit into the center.  Any one got any
ideas on this.

Ray.