- Joined
- Sep 26, 2010
- Messages
- 9,833
What are the thoughts on this oil for extended OCIs? I see that someone did a VOA of Castrol Edge Extended Performance (Gold Bottle) of it in 5W-30, but the TBN was only 7.7 (which does not seem conducive to extended OCIs), yet PQIA tested Castrol Edge (Black Bottle) and it had a TBN of 11.3.
Has anyone else seen a test showing a higher TBN for Gold Bottle or ran it for 15K or so and has a UOA to share?
Has anyone else seen a test showing a higher TBN for Gold Bottle or ran it for 15K or so and has a UOA to share?