If your getting good results from HPR I say keep running it.
As for that guy saying that California having The best fuel I would like to see the reports on that. Especially when he says the Texas has the worst. WTI or West Texas Intermediate is the Standard for crude oil for the US and many other countries because of it's amazing grade of quality. I cannot imagine a baker winning a cake contest using old eggs and dirt mixed in with the flour. To make the best you have to start with the best unless you're breaking it down to a molecular level and building back up from there in a synthetic manner.
On top of that the emission standards in California are the tightest in the country and in diesel fuel that equates to ultra low sulfur, combined with ethanol for the cleanest emissions. California fuels have consistently tested as the worst lubricating fuels for the last 25 years that I've been in the industry. Being as large portion of our fuels came from California that supplied Southern Nevada and northern Arizona I know the economic hit we took to add tons of lubricants.
There are only two testing laboratories in the United States that is excepted by all the refineries as well as the rest of the oil industry. Ask him which he used and which tests he had them put through.
No fungus in the fuel means the use of more ethonal, which of course makes it more hydroscopic soaking up more water from the humidity in the air if nothing else.
On the other hand
No water in the fuel means the use of less ethanol, which of course makes it more hydrophobic and that in turn allows more fungus growth.which of course makes it more hydrophobic and that in turn allows more fungus growth.
Hottest fuel maybe because of the rediculous amount of corn juice that is mandated by the state to be in all your fuel. Don't take that as a good thing, dump in a bunch of nitromethane in your gasser car to see why-
Then you have the fact that there are multiple competing corporations producing different fuel from different sources using different techniques trying to one up their competition. All the fuel is not going to test the same. Every refinery you see struggles in the balance of acceptable fuel with proper production margins.
I know your just repeating what he told you, but whatever he is teaching in that class, I am REALLY going to doubt he understands fuels and their interactions with engines like I do. I worked with some of the largest testing companies out their like 76, GM, CAT,
Etc., doing the largest test beds that had ever been done. I worked for the base company that now is the largest biofuel mfr in the country. I currently work for the company that is at the forefront of synthetic crude and fuels. If this guy is professing those 3 points to you: hottest, no growth organisms,and no water all in the same fuel, I call BS. No one company even has the best of any of 2 of those categories, let alone all 3 and coming from the 3rd lowest grade crude possibly depending on which part of California your in. Does it start with a V? Haha yup.