Telling exactly "what" as "it is?" I see a lack of wisdom in that sweeping pontification. yet you revere it?
There are plenty of controlled studies that have been conducted on injection parts metal wear and lube additives. Especially for rotary mechanical injection pumps with distributors (head and rotors). All ultra-low sulfur fuel sold in the USA for motor-use is required to have lube additives put into it. I see a lot of nonsense here and feeble attempts to discredit by innuendo and John T's use of "Bubba" in the argument.
Easily verified facts are thus:
The process to cook to the sulfur out of diesel and make it "ultra-low" removes much of the inherent lubricity. Also removes some BTUs of energy.
Older diesel systems with mechanical rotary-distributor pumps require more lube then newer systems to last as long as designed. That includes CAV, Rotodiesel, Stanadyne AMBAC, Bosch, Diesel Kiki, etc.
The Federal requirement for lube additives put into ultra-low-sulfur-diesel is not as high as the diesel fuel was originally.
A typical rotary mechanical injection pump can last 1,000,000 road miles or more with the major metal parts still working well with good lube.
How many people here - smart people or John T's "Bubbas" have any idea how many actual miles or hours are a pump when it craps out? Keep in mind that so-called "rebuilt" pumps often have many, many hours/miles on the parts inside.
How many here even know, for sure, exactly what parts failed inside their pumps when they do fail?
I'll bet very few people work on their own pumps (some of us do). Those who send them out may never know for sure what really happened and why.
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