Not sure what exactly that is all supposed to mean.
Stanadyne has published recommended lubrication specs for their rotary distributor injection pumps. The new ultra-low sulfur fuel is a bit below those specs since it is not required for new electronic injection systems. When it first came out it was very low. Now it is required to put lube additives put into it before it gets to the pump. With that additive it still a bit lower then the requirements for the older rotary pumps.
I don't have a lab to test fuel lube nor do I have a lab to conduct metal wear tests on injection pumps. I DO try to stay well read on the subject and read tests done by companies that make fuel and these pumps. For now, I'll take Stanadyne's word for it. Also the same from the US military that has had miserable problems with rotary pumps used with JP8 low-lube diesel fuel.
There have also been tests done for any possible gains with "snake oils" as some put it. Two-stroke-oil is at the top of the list for the "best bang for the buck." Very cheap investment when used at a 1 to 400 ratio.
I call it cheap insurance for a very expensive injection pump. And, others call it "snake oil." I guess we are all free to believe what we want. I try not to guess at such things when I don't have to.
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