Results are not as good as last year; looks like this oil didn't hold up well enough for the interval specified by the BMW's maintenance computer. Aluminum and iron are up slightly, copper is the same, but lead is still nice and low.
Most alarming to me was the TBN--only 1.5!
VOA for this oil is here.
Instead of shortening the interval and continuing to use this brand of oil, I'd like to try and find an oil which can hold up for 15,000 miles or one year. I'm leaning towards M1 0W-40, since I have lots of it (it recently went on sale for $4.29/qt), and it meets BMW Longlife 01 spec.
Or maybe SAAB's 0W-30 which Jae discovered has a virgin TBN of 17.5! Or perhaps Delvac 1 5W-40... or Amsoil 0W-30... hmmmmm, choices, choices!
Comments welcome and appreciated.
Thanks,
Jason
Most alarming to me was the TBN--only 1.5!
VOA for this oil is here.
Instead of shortening the interval and continuing to use this brand of oil, I'd like to try and find an oil which can hold up for 15,000 miles or one year. I'm leaning towards M1 0W-40, since I have lots of it (it recently went on sale for $4.29/qt), and it meets BMW Longlife 01 spec.
Or maybe SAAB's 0W-30 which Jae discovered has a virgin TBN of 17.5! Or perhaps Delvac 1 5W-40... or Amsoil 0W-30... hmmmmm, choices, choices!
Comments welcome and appreciated.
Thanks,
Jason