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JM 
Orange Level
Joined: 12 Sep 2009
Location: United States
Points: 379
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 Topic: STP oil, is it good?
Posted: 09 Jul 2011 at 9:37pm |
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Grandpa put stp in everything. Does it really do any good? Just seems to be a thickiner for the oil. Why not just run a heavier oil? What do you guys think?
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Coke-in-MN
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Joined: 12 Sep 2009
Location: Afton MN
Points: 41924
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Posted: 09 Jul 2011 at 9:46pm |
Use to use it in everything but my cycle. Seems to make oil sticker and cling longer to things. use it as a assembly lube on engies on rod and main bearing . Works best if you add with engine running and hot as mises faster with oil.
New oils I think are formulated better now than they were 10 or 15 years back ann new engines now again call for lightweight oils of 5/30 or 10/30 ..
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Faith isn't a jump in the dark. It is a walk in the light. Faith is not guessing; it is knowing something.
"Challenges are what make life interesting; overcoming them is what makes life meaningful."
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Jeff Z. NY
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Joined: 11 Sep 2009
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Posted: 09 Jul 2011 at 10:29pm |
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And alot call for 0w-20 when running alot in below 0 temps.
STP is an anti-fricton additive that puts a thicker barrier between parts even when it's hot and looks thin.
Similar to Lucas Oil Additive.
I don't believe it can damage anything but then most oil companies so don't put any additives in their oil because thay say it can breakdown their oil faster.
Who knows?????
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bwp
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Joined: 02 Oct 2010
Location: Elko, NV
Points: 500
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Posted: 09 Jul 2011 at 10:35pm |
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I am not sure about STP, but I know some oil additives have zinc phosphate which helps as a high pressure metal to metal lubricant. All oils used to have it but it brought catalytic converters a premature death, thus increasing emissions, so the EPA regulated it's use to only off-road and performance oriented applications. Run of the mill oils don't have the zinc. I'd check to see if it has the zinc.
Brad
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Unit3
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Joined: 17 Oct 2009
Location: NC Iowa
Points: 5580
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Posted: 09 Jul 2011 at 10:42pm |
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I remember the TV ads. They dipped a straight screwdriver tip into oil and STP. Then they would try to pickup the screwdrivers by pinching them with their fingers. You can't hold onto the on with STP. I have on the lid of my toolbox a STP sticker given to me when as a kid. Our family got to tour the Indy Speedway, and our tour guide handed one some me.
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beeman
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Joined: 02 Jan 2011
Location: Alabama
Points: 230
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Posted: 09 Jul 2011 at 10:44pm |
Have not used STP in years in an engine. Rottela ,mobil 1, others work just fine without additives. But it still works good in older gearboxes [brushhogs] or finals that call for 90wt and 140wt. ,non posi rearends. Quiets them down if worn almost out..LOL. I would not use it in any older tranny that shares oil with its hydraulics,like a B or C,etc.
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1949 B 3930 Ford- Have owned other Orange ,green,red,yellow,dark green tractors and equipment.
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Toscani NE SD
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Location: Milbank S.D.
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Posted: 10 Jul 2011 at 5:37am |
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now it's called lucas,same thick stuff
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