In your message dated Tuesday 8, August 1995 you wrote :
> (If I am missing the answer here, please accept my excuses, but what was
> the question (both figuratively and literally, as I think maybe I missed
> the initial post)?
>
> Well, if you want to buy my snake oil farm in Florida, that's next up.
>
> I mean, sorry to be crusty, but for heaven's sake, what is the bloody issue
> with regular oil and filter changes?? I am on three car lists, and these
> "long-life" oil and/or filter debates seem to come up as regularly as sin
> in a whorehouse. What is the issue with paying to throw some oil into a
> car? I have seen CONCOURS cars with sludge in the crankcase and brake fluid
> that looks like it went in at the factory, 23 years before.
>
> steve macsween
Steve,
Bypass oil filters are not in the category as slick 50 and other 'snake oil'
additives. They are used extensively on commercial trucks (where it not always
possible to change oil at 6,000 or similar intervals) and also on a few high
performance cars.
The bypass filter that one guy in our club has fitted has a small feed from the
normal oil filter to the much larger bypass filter. The bypass filter only
deals with about 10% of the total oil flow, but can remove particles 25 times
smaller than the normal filter - even soot -so the oil stays clear. It has a
small tap that allows a sample of oil to be drained off, this sample is then
sent off by post and a report comes back telling you whether the oil needs
replacing due to additive breakdown, warning of contamination due to head
gasket
faliure and also an indication of engine wear from the iron/ally content. The
cost of getting these samples tested is included in the cost of the filter.
High quality synthetic oil for a performance engine costs about 45 a fill
(including filter), if a extra 30 to 40 for a bypass filter can really triple
the time between changes these seems to make good economic sense to me.
Regards
Alan Tong
_____________________________________________________
"Who's General Failure & why's he reading my disk?"
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