Quote:
Originally Posted by JFP in PA
If you suspect build up, long before I would dump any aftermarket product into the engine, I would switch temporarily to a diesel oil such as the Shell Rotella T6, which is a 5W-40 0il that is both very high in detergency (required in a diesel) and in ZDDP (diesels do not have cats, so they can run high ZDDP).
When you change the oil after 3-5K miles, it will be ugly, but that is what you want.  |
JFP, a couple of years ago I bought a very low miles (but used) Volvo V70 non turbo for my wife to replace an identical one that was totaled by our youngest son (I am sure someone here can relate to this as well… ha)
The car was in pristine condition but the engine has some sludge build up that you can see when you put the oil on the engine and was considering flushing it, now the engine has about 80k and your idea of the Shell Rotella T6 sounds pretty good.
Question: Do you think that the high ZDDP content be fairly safe for the cat if used for 3-5k miles?
Thank you in advance for your comments!