Originally Posted By: dailydriver
Originally Posted By: DragRace
Redline handles long drains fine.I know 3 people who have run it out to 10,000 miles with no issues.
I run it out to 10K miles
regularly, and I STILL feel like I am changing it too soon!!
As has been said, it may only start with an 8.0-8.8 TBN, BUT, it
retains that TBN longer than some group 2/3, 3+ oils which start much higher!
I can only wonder what the TBN retention is on Motul 300V, which is a high group 5 basestock oil which
starts at a TBN of 10.9-11.7!
I had a reference sample of Redline 0w-30 tested by SGS-Herguth Lab on 10/14/13, and it showed a TBN of 7.72, TAN starts out at 2.67 though.
After 4331 miles in my 2008 Buick 3.6L V6, TBN was down to 1.51, another run of 3460 miles showed 3.09. Changing out in the 1728-1780 mile range showed 5.23 & 5.27 respectively.
Note that Chevron Supreme 5w-30 run in this engine showed TBN @ 3.94 after 2225 miles, and Chevron Supreme 10w-30 showed 4.88 after 1137 miles.
Redline 0w-30 has large amounts of Zinc (1344), Phos (1330), Calcium (3160), and Moly (608).