[TR] greenish oil now ZDDP, dripping chambers

Randall tr3driver at ca.rr.com
Thu Sep 29 13:09:56 MDT 2011


> From here on out,
> I plan to use Valvoline 20w-50.  For summer driving, I may use 10w-30.

Isn't that backwards, Paul?  20W50 would be for hot weather, 10W30 when it's
cooler.  (Although I run 20W50 year-round and it does OK even in occasional
freezing temps.)

> I doubt the Valvoline 20w-50 plus a little
> plastic
> bottle from Moss of ZDDP will be too much ZDDP???

Personally, I have a strong bias in favor of not using aftermarket
additives.  Composing a motor oil additive package is a complex process
involving a careful balance of dozens of chemicals.  People literally get
advanced degrees in chemistry in order to do this!  And you are paying for
that expertise when you buy a premium oil (like Valvoline).  The idea that
some "one size fits all" mixture will improve the carefully crafted balance
seems unlikely to me.  Using an aftermarket additive is akin to dumping
pepper on an expensive restaurant meal before tasting it.

> It had a CCA of 625!  Can u guess my biggest concern
> about this?

Suppose you tell us.  Pretty much all modern batteries have much higher CCA
ratings than older ones, due to improvements in metal refining and such.
Having a higher CCA rating is not a problem, but CCA is not the same thing
as capacity.  Does it have an AH or RC rating?

> I wonder
> what the torque is for the float chamber attachment bolts for a SU HS6
> is??
> But, they seemed snug.  Any suggestions?

Are these HS6, or H6 carbs?  On the HS6, the float chamber bolts cannot leak
(unless the chamber falls off).  I'm guessing you have H6 carbs instead, and
that it's time (already) for new float chamber gaskets.

-- Randall 


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