I have a BMW with the N52 engine (na, port injected). The car only gets about 3,000 - 4,000 miles / yr. I'm changing oil once a year regardless of mileage. I try to not use the car for a 2 mile errand, but do make a few 7 mile one-way trips. It's been suggested that I even shorten my OCI because of the relatively short trips. I'm having a hard time seeing a reason for more than once a year. These engines run hot so I would think moisture & condensation wouldn't be a big problem. I had one UOA done a few changes ago and it came back good. Now running Castrol Edge 0W-40 with the LL01 approval still on it.
Opinions on more than a once a year OCI ?
2nd question - will a full dose of a fuel treatment like Techron 'mess with' a UOA? I want to do one on my next change.
Opinions on more than a once a year OCI ?
2nd question - will a full dose of a fuel treatment like Techron 'mess with' a UOA? I want to do one on my next change.