stp blue bottle

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hey guys,
I have a few bottles of STP oil treat kicking around.
A friend of mine wants to use them,
his car uses 4 litres of 5w30 , what do you think the viscosity will be after its added ?

10w-40 ?

just curious
nik
 
Well, in its oil study years ago, Consumer Reports(?) said that a bottle of STP added to 10w30 oil would make it the same thickness as a 15w40 oil...so, yeah, looks like it would turn a 5w30 in something like a 10W-40.....
 
Is he going to add all three bottles at once? Then he might have a 20w60 or some other horribly thick mess.
lol.gif
 
They were selling that stuff at BigLots. The stuff is SO think, I couldn't coax a HINT of a slosh in the bottle no matter how hard I shook the bottle. How the he11 would you pour it outta the bottle? That stuff is no-go. VSOT is too thick, too, but at least we add only a little. STP wants you to do the whole bottle. Dunno HOW you'd get it out of the bottle.

Needless to say, I deferred to the SLOB. $1.59 each, scored 6 bottles. Should go good with my Havoline.

And I was the one that swore off the additives last week till someone in the know mentioned the zinc is still a good thing, lots of Moly or not.
 
toocrazy2yoo: I think you are okay with zddp additives, but when dealing with thick stuff it better have good VIIs.

As for STP the red bottle (4-cylinder) stuff is a lot thinner than the blue bottle. More like VSOT IIRC.
 
Yep, VSOT is thick, but I would expect it has a quality VII. Store the VSOT in a warm place for a while (a sunlit window) to warm it before use (or in winter set it by the heat register).
 
Jeez, Paul..

VSOT ain't no thin drink of water either. When I use VSOT, I use Mobil 1 0w20 (Havoline, the only Dino I'm ever gonna run, doesn't need the Moly contained in VSOT), I heat the bottle of VSOT in boiling water and mix it with the oil before I pour it in. 1.5 oz./Qt.
 
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