Gonna give my endorsment to the RESTORE. Used a can in my old $280 68 Newport(back in my drinkin days). After adding it you could no longer smell the blow by when beating the snot out of the engine.It would cross plowed frozen fields, and jump train tracks without a hint of blowby. Sold that poor engine to a guy who was going to put it in an I.H.Scout.He never came back,so I guess it must have met his performance expectations.