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SVTPerformance's Chain of Restaurants
The Greasy Spoon
13 track pack oil
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<blockquote data-quote="Ben99GT" data-source="post: 11928338" data-attributes="member: 3519"><p>It only starts out at ~8, still plenty of UOAs showing RL is good for 10K-12K in most cases. </p><p></p><p>From what I've learned from Terry Dyson and Tom NJ, high percentage ester oils also take a different approach to TBN evaluation. Esters have a natural detergency and the acids they form from "breaking down" aren't the strong corrosive acids produced minerals/PAO, but rather weak organic fatty acids that can actually act as corrosion inhibitors. </p><p></p><p>There are articles out there on industrial TBN evaluation if you care to look, from what I recall POE based oils are generally taken down to 0.5 reserve TBN while the Group II/III/IV oil are usually only taken down to 2.0. Terry Dyson repeatedly stated that it was safe to take Red Line down to 1.0 or less, and the info I've read seemed to back up his opinion.</p></blockquote><p></p>
[QUOTE="Ben99GT, post: 11928338, member: 3519"] It only starts out at ~8, still plenty of UOAs showing RL is good for 10K-12K in most cases. From what I've learned from Terry Dyson and Tom NJ, high percentage ester oils also take a different approach to TBN evaluation. Esters have a natural detergency and the acids they form from "breaking down" aren't the strong corrosive acids produced minerals/PAO, but rather weak organic fatty acids that can actually act as corrosion inhibitors. There are articles out there on industrial TBN evaluation if you care to look, from what I recall POE based oils are generally taken down to 0.5 reserve TBN while the Group II/III/IV oil are usually only taken down to 2.0. Terry Dyson repeatedly stated that it was safe to take Red Line down to 1.0 or less, and the info I've read seemed to back up his opinion. [/QUOTE]
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SVTPerformance's Chain of Restaurants
The Greasy Spoon
13 track pack oil
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