I still would like to know how come up did not get a complete test. You are missing
a lot of areas here, big time. Ex: you could have a TBN of 6.5 but TAN over the scale. Or your NOX and OXD like 30 to 40%. How about fuel, water, coolant, soot, etc?
I do not even look at Amsoil XL series since the price is about 5% of there real group 4/5 oils.
I also disagree on your statement, “. Gas engine oils don't need hi-starting TBN . If it's comes inherently with how it's additised so be it but don't beleive me , call Dave at Redline and ask him .“
My car (Lexus) if it did not have a high TBN number it would be a sludge engine, big time. I like Redline but I do not use there oils since there Moly is too high for my cars and the price is too high for what you get.Again TBN is integral to the add's.
Have a good weekend! My bike is all put away for the year...Now time to starting look for bike #2
PS. I am not trying to get people on Amsoil. I get it for 6.XX per qt so it is cheap!
Funny that you are questioning why I don't list it nor use a lab that tests for TAN when I use a gasoline engine oil in a gasoline engine
The Total Acid Number will measure the buildup of organic acids produced during oxidation of an oil . The derived number does not discriminate the type acids generated by oxidation from those that are ingested as contaminants or from certain types of additives , like anti-wear and corrosion inhibitors and can make making trending of oxidation by using TAN difficult . Effectively , we don't see what we need to see . Leave the TAN for the diesels using mineral oils
I could go on about the oxidative degradation and the role that different antioxidants play along with the formation of reactive (harmful) compounds known as free radicals, hydro peroxides and plain
peroxides and why the anti-oxidents are more important than your precious TBN in GASOLINE engine oils ... but why .
Yes I use the soot , nitration and other values to help guage what the possible remaining oil life might be , how well the engine is sealing and more but I'm not posting it for you . I only listed the TBN to show that the Silkolene must start pretty high to begin with .... as a result of the type additives used . I get the impression that you beleive TBN to be an additive of some type . It's not , I assure you
BTW , your Lexus and sludge , or lack of , or would have , if you did not use Amsoil as you say ..... has nothing to do with TBN but I'm not going there .