ZDDP question

[Johnnie]

I have this bottle of rislone engine oil supplement from rislone.com. part number 4405. It says it's "3x concentrated ZDDP " on the 11 oz bottle. I got it at one of the box stores a few months back.Is this stuff ok to use? Anybody use it?

 

[regan j]

Ask Rislone to send the material data sheet for the product. It should list the parts per million (ppm) of the ZDDP