What do I have here? STP EXP2

[WOOCHOW]

While cleaning out my basement today I came across two quarts of SLICK 50 and three quarts of STP Engine treatment XEP2. I know the Slick 50 is junk, and assume the same for the STP but it seems the main chemical in the STP is "Zinc dialkyldithiophosphate." I've heard good things about zinc, but that it is bad for emissions controls components. Would this stuff be good to use on motorcycle or snowblower motors where there are no emissions controls, or should I just bring this crap to the nearest hazardous waste facility?

 

[The_Oz]

Most - if not all - motor oils for 4-cycle engines use ZDDP as a multi-function additive.

Regards,

Oz

P.S. I personally wouldn't use it.

 

[SteveD2]

And, the right amount of ZDDP is good; more is NOT better. I'd take it to the hazardous waste collection site.

Ken

 

[MolaKule]

As I recall, the XEP2 was a chlorinated ester additive when everyone was jumping on the
chlorinated wax bandwagon.

I am with OZ, wouldn't use it, not prudent!.

 

[WOOCHOW]

Thanks guys, I didn't figure it was too good. Maybe I'll just give it to my neighbor to put in his Honda!

 

[MolaKule]

Gee Woo, don't like the neighbor?