I didn't miss JAG's comments, I have read all the posts, and was simply adding to JAG's post.
This statement below indicated you had some misunderstandings regarding the distinction between VII chemistry and polymer esters:
Originally Posted By: oil_film_movies
I've always thought that anything super-thick (Schaeffer's #132 Moly EP is 225 cSt KV100 --- very thick!!!) added to a fueled-up oil would work. STP Oil Treatment is 200 cSt KV100 for example.
The Hyperlube ZRA is moderately thick, and it should help on just a Stribeck viscosity basis alone (+1 cSt added), yet it does have that polar nature that clings & slimes the surface pretty well.
AND
Originally Posted By: oil_film_movies
Since HyperLube ZRA polymer esters have a KV100 of about 37 cSt, then wouldn't that thicken the oil when mixed in? Not by much at 12 oz to be sure, but it will thicken it as far as I know. Widman predicts about 1 cSt thicker.
Where did you get your info that STP & other oil-burner products have any VII in them? STP makes no claim of that. The MSDS doesn't say it has anything other than detergents and ZDDP. It appears its mostly thick base oil. Any evidence for your claims?
Just because a chemical or compound is, "Thick" in its native state doesn't mean it is going to thicken the host oil to any significant degree IF it is not a VII.
Lastly, you seem to put your faith in a SDS as if it contained more technical information than does a textbook by someone educated in chemistry, such as by Dr.Leslie.
Recommendation: Chill and read.