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Stp Oil Treatment Yay Or Nay?

stp additive oil

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#1 fxdb96 OFFLINE  

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Posted May 14, 2014 - 06:36 PM

Anyone else a believer in STP oil treatment?  I use the stuff in every old motor I own.

Try the screwdriver test to a friend.....

Dip the blade end of a flat tip screwdriver into some stp...

Hold the screwdriver out vertically by the handle so the blade is pointed up...

Have a friend try to pick up the screwdriver by the slick as sh*t screwdriver blade.. it can't be done!!!

 

I heard the formula was developed by the germans in WWII to use in tanks.  I know it contains ZDDP / zinc.  The stuff really seems to coat and "stick".. i can't see how it would be bad

 

 

http://www.stp.com/p.../oil-treatment/

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#2 bread320i OFFLINE  

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Posted May 14, 2014 - 06:44 PM

I use Lucas oil treatment. I am guessing the STP stuff is similar if not the same.


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#3 hamman OFFLINE  

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Posted May 14, 2014 - 06:50 PM

I have Slick 50 I use in all my old tractors and mowers. Don't know if it really works but makes me believe it works and feel better,                        Roger.


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#4 KC9KAS OFFLINE  

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Posted May 14, 2014 - 07:02 PM

Back in the 60's to 80's my grandfather always added a pint of STP to every oil change in his International trucks. He was a believer in the STP.


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#5 JD DANNELS OFFLINE  

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Posted May 14, 2014 - 07:19 PM

Used it back in the 6os & 70s. If it was good enough for Mario Andriete and Richard Petty it had to be good!!
I might use it in a new engine assembly, but think the oils are so much better today than they were then there is no need.
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#6 lyall ONLINE  

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Posted May 14, 2014 - 08:34 PM

if you use STP make sure you just don't dump in and leave.

you have to run the motor for a while for the STP to mix with the oil

 

a friend just dumped it in and left it

his wife was going to use it the next day to go the work

she got less than 5 miles down the road and guess what?

the motor frozes up because the STP did get thru the oil pump

it was a 4 year old Ford pickup


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#7 bread320i OFFLINE  

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Posted May 14, 2014 - 09:12 PM

if you use STP make sure you just don't dump in and leave.

you have to run the motor for a while for the STP to mix with the oil

 

a friend just dumped it in and left it

his wife was going to use it the next day to go the work

she got less than 5 miles down the road and guess what?

the motor frozes up because the STP did get thru the oil pump

it was a 4 year old Ford pickup

 

Is it possible the truck had existing issues?

These oil additives are just as thick as oil in sub zero temperatures which could cause oil starvation



#8 JD DANNELS OFFLINE  

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Posted May 14, 2014 - 09:36 PM

if you use STP make sure you just don't dump in and leave.
you have to run the motor for a while for the STP to mix with the oil
 
a friend just dumped it in and left it
his wife was going to use it the next day to go the work
she got less than 5 miles down the road and guess what?
the motor frozes up because the STP did get thru the oil pump
it was a 4 year old Ford pickup

Yeah I know my brother had a 66 SS 396 impala with a 4 speed, he drove hard and the transmission was getting bad.
He put 4 cans of STP in and filled it up with gear oil, then traded it off. Dealer was hopping mad when a customer wanted to take it for a test drive when it was 30 degrees out and it would not shift at all.

#9 Hammer OFFLINE  

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Posted May 14, 2014 - 09:57 PM

STP oil treatment is old 80's tech.

 

If you want true state of the art oil, Amsoil is the choice I make. 

 

Amsoil and Motul is the only 2 manufactures that produce 100% synthetic oil. Do not confuse 100% with full synthetic. Full Synthetic is just like Taco Bell calling their meat "Beef"

 

The bike you see in my avatar was my race bike. I beat the crap out of that bike for a few years on the track. I did not allow it to go below 10,000 RPM's when on the track and it redlined at 16,500 RPM's. and al I used in it was Amsoil. And it is still going strong today with her current owner in Canada. 


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#10 Cvans ONLINE  

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Posted May 15, 2014 - 10:14 AM

I used it in all my air cooled engines for years and it once saved me an engine when the oil pump failed. Just 4ozs. to an oil change. It has it's place but I wouldn't get carried away with the stuff. 


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#11 ironcub OFFLINE  

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Posted May 15, 2014 - 11:42 PM

I will never deny or argue the fact that other oils are very good. I prefer Schaeffer's for myself





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