Fair enough; however, I refuse to believe any but the heaviest particles
settle immediately to the bottom--non-detergent oil or not--while a
gearbox is operating. I can imagine the oil being furiously stirred and
slung at high speeds--I doubt a steel marble would settle while running
but, sure, while the car is sitting heavier crud will settle. Plenty of
damage could be done before any particles get a chance to settle;
detergent oil or not. Like I said, the heavier ferrous particles end
up on the screen or magnets.
AFAIK, ashless dispersant (detergent) oils were formulated to clean out
or suspend light combustion byproducts; i.e. carbon, etc. ('ashes'). I
doubt it'll keep heavy particulates in suspension any better than
non-detergent. Any tribologists on the List that can address this issue?
This site is interesting (can't vouch for its veracity):
http://www.nordicgroup.us/oil.htm#How%20Sludge%20is%20Prevented
bs
Dave Porter wrote:
> Before I defer to the Factory recommendations let me just say that if you
> were correct in the residues acting as a lubricant, then there would not be
> evidence of galling at the operating and accumulator piston bores.
> All those crunches into 1st and reverse end up comingling, as do the brass
> bits from the thrust washers/spacers on the laygear and O/D mainshaft. The
> designers foresaw this and specified non detergent to separate solids from
> liquids.
> Seems logical to me.. just saying...
> Dave
>
>
> *******************************************************************
> Bob Spidell San Jose, CA bspidell@comcast.net
>
> *******************************************************************
>
>
>
>
--
*******************************************************************
Bob Spidell San Jose, CA bspidell@comcast.net
*******************************************************************
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