No-
Actually it has a detergent in it that will clean your motor out very well. I used to work in a shop that serviced Bentley and Ferrari. The shop owner was a master mechanic. He would substitute a quart of oit with ATF and have the customer run it for a week. He would then do an oil change after the week(as long as it did not valve clatter). I thought he was crazy but he assured me it was fine(he had been a mechanic for over 35 years) so I guess he knew what he was talking about. It breaks loose all of the gook. I think that a little will be fine. Equate it to addind some marvel mystery oil in there between each oil change-
M
