The newest version of Castrol HM is advertising that it is cat friendly so I'm guessing it has pretty low ZDDP levels.
There is a popular and controversial video on YouTube by Scotty Kilmer he claims a cat can be cleaned with laquer thinner IIRC.
I was getting cat codes on my Jeep off and on since I bought it, but 40k miles worth of MMO treated fuel seems to have made it permanently go away. Have not had the code now in over a year.
Was it the MMO over time? I dunno for sure I use it for other reasons.
There is a popular and controversial video on YouTube by Scotty Kilmer he claims a cat can be cleaned with laquer thinner IIRC.
I was getting cat codes on my Jeep off and on since I bought it, but 40k miles worth of MMO treated fuel seems to have made it permanently go away. Have not had the code now in over a year.
Was it the MMO over time? I dunno for sure I use it for other reasons.
