>I am still having problems with the oil in my 73 TR6 turning black after
>a few hundred miles of driving. I use 20-50 oil of good quality and the
>original cannister filter.
>No matter what brand of paper filter I use, the oil will not stay clean
>for long, and I don't like to drive with black oil, thus I end up doing
>oil changes too frequently.
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Black oil is not necessarily bad or oil in need of changing. It is in fact
doing what a good oil should do. Suspend the dirt particles instead of
letting them settle into the bottom of your oil pan, or onto the inside of
your engine (like your valve cover, valve train, etc.) If you change your
oil and filter regularly as per the owners manual or even more frequently,
then not to worry. Drive away knowing that your oil is doing it's job
keeping all the harmful deposits where they will do the least harm! In
fact the newer oils do an even better job of internal protecting and
lubrication, then anything available when these vehicles were new. Any
thing that gets by the filter will be so small as to not cause any problems
with wear, and Quite frankly, if my oil stayed "as new" I would wonder
where ALL that dirt WAS going? (clogging your filter??) I have a GT6 with
hundreds of thousands of miles on it and it has always used a canister type
filter. (rebuilt it at about 130 thou used original spec parts (none
over/undersize). I figured that if it lasted that long using the original
type of filter design, then that was good enough - I stayed with the
canister
Barry Schwartz (San Diego) bschwart@pacbell.net
72 PI, V6 Spitfire (daily driver)
70 GT6+ (when I don't drive the Spit)
70 Spitfire (long term project)
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