Shall we parse your “facts,” one by one? Okay, I’ll do it.
First, it might be a good idea to distinguish between fact and opinion.
Facts can be confirmed. “There are three people in the room” is a fact, because we can count the people in the room and confirm it.
Opinions cannot be confirmed. “Low-viscosity oils are aptly called ‘water oils,’ since they are about as thin as water” is an opinion, because you used the qualifier “about as thin,” which can be neither confirmed nor debunked because my idea of “about as thin as water” might vary from yours.
With that criteria in mind, here we go:
That’s an opinion, although it might be a well-substantiated opinion if you describe the people who describe oil that way. What is their expertise, and why didn’t you cite your source? Doing so wouldn’t make it a fact, but it would be an educated opinion.
How do you define “almost” in that context? Can you replace “almost no film” with a quantifiable amount? That would make it factual. I’m not convinced that low viscosity oil has this issue until you prove it, and you haven’t proven it yet.
If it’s not too much trouble, would you mind citing the document where this knowledge comes from? I accept the “20 minutes” value, but I don’t accept that the oil leaves some parts unlubricated because of it. I might reconsider if you cited a credible source I could confirm.
I’m willing to accept this at face value without you citing a source, but I’m not sure what it proves. Can you please elaborate?
Actually, the move to thinner multi-viscosity oils began long before that, back in the 1980s. My mother’s 1985 Ford Escort was my family’s first car to use 10W-30, and the naysayers didn’t like it back then, but it didn’t hurt the car. My 1998 Civic has used 5W-30 oil since day one, for more than 290,000 miles, and it hasn’t caused any problems. Each transition has been fine, so I see no reason to fear using 0W-20 oil in a new car that was made to use it.
In the end, your car’s owner’s manual or repair manual will usually list more than one oil for your engine based on your climate. For example, take a look at the attached picture.
This engine can use 10W-30 in temperatures between 10 degrees and 90 degrees, or either 20W-40 or 20W-50 in any temperatures above 10 degrees.
Sorry, but that’s not a fact, it’s your opinion, and left unsubstantiated by not citing a source, it’s not even an expert opinion. The same goes for:
Regarding:
I submit that the best way to protect yourself is to protect your warranty, and using an oil that is not recommended by the manufacturer, or not keeping a record of maintenance, (or worst of all, doing both) puts your warranty in jeopardy should you need it. That’s a fact.
Would you mind sharing their names and credentials? I’d like to confirm your story.
If I were looking to convince anyone that my opinion was worthy of consideration, I wouldn’t use Google as my reference. I would look for credible peer-reviewed publications, and whether my sources were academic or not, I’d cite them. I wouldn’t plagiarize the ideas of others by sharing them without citing my sources.
So you admit this is a matter of opinion? That’s interesting.