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Just about any quality fluid will last a long time if you can keep the temperatures down. Forget the analysis for a minute. This is far less complicated than engine oil.

If your car is spending 80% of it's time at the track as you say, the factory setup is just inadequate. I've only come across a few attainable cars that are truly track-ready out of the box, my old GT350 being one of them. It's a hardware problem, not a fluid problem.

If warranty wasn't in play, and the cost proposition was better, I would run Amsoil Signature Series. It isn't bad. It's just expensive when cheaper oils are either just as good or better. But we don't live in "what if" land, and the truth is that Amsoil Signature Series is both a bad value...

I got a jug of oil for sale. I wrote on it: meets or exceeds API SQ, SR, and ST. Meets or exceeds dexos 5, 7, and 33. $100 OBO. Same exact credibility as Amsoil.

The part I highlighted in bold is especially rich. GM maintains a database of dexos licensed oils. Guess who has exactly zero dexos licensed oils? Amsoil. https://www.gmdexos.com/brands/dexos1_3/index.html

Amsoil has long been known for using weasel words to imply they are licensed by API (as well as various manufacturers) when they actually aren't. Of all their oil weights, they have a number of API licenses for the various 0W-20's. Signature Series is not one of them. This is straight from...

I was directly quoting your post. Now you're just straight-up lying.

You are moving the goalposts. You claimed that Honda's perspective is that Amsoil Signature Series is better than an API licensed oil: Again: that statement is FALSE.

You can run whatever oil you want, just don't make assertions like this if you don't want called out: People make decisions about what to do to keep their warranty FULLY intact based on what they read here. If it weren't for that, I'd let you guys circle-jerk about Amsoil all day long. A...

The spicy insider info is my ability to read and understand the owner's manual. Note that "SN or higher grade" here doesn't mean "SN or Amsoil Signature Series" - it means SN or successor API classifications. Those would be SP and SQ, currently.

Gear oils aren't normally exposed to contaminants and so the number one enemy of their longevity is heat. Long periods of high heat will drop the life of your gear oil exponentially as the temperature and duration rise. If I wanted to extend my interval with heavy track use, I would 100% be...

Failing to make a good argument, the losing party switches to attacking credentials.

That right there. That's where you have bought the marketing hook, line, and sinker. Amsoil Signature Series isn't better than any number of API oils by any number of metrics. And the implication that Amsoil Signature Series is somehow in some superior class of oil to API licensed oils from...

I don't actually have a bias towards one particular oil company. I've personally used Mobil 1, Pennzoil, Motorcraft, and Liqui Moly over the past decade or so. Oil tribalism is dumb. Oil tribalism is extra, extra dumb when it's people shilling Amsoil.

And what Google got you was likely some sort of test featuring one of these guys: Which is a bearing tester invented by Timken to test wheel bearings and wheel bearing grease. Yes, grease. Not motor oil. Grease...

The research: Amsoil's army of pyramid scheme MLM lackeys. I literally just posted documentation of it being nowhere near the best by an expert, independent third party that runs a company doing used oil analysis. It was never bad oil, and two decades ago it may have been the best oil, but...

Nah fam, what you said was: For such a great oil, you'd think under rigorous scientific testing, it would outperform at least ONE of these oils in a battery of tests, right? Liqui Moly Pennzoil Mobil 1 Ravenol Red Line All of which are fantastic oils that I would use myself, but given the...

Exactly. "MOAR ZDDP" is just a talking point for the fundamentally clueless. ZDDP competes with detergent and dispersant additives in the oil. For example, heavy duty engine oil (commonly used in diesels) has more ZDDP - because it has more detergents and dispersants. Lots of guys run...

Just be aware that of the products Amsoil sells, the most popular and commonly used one "Signature Series" does NOT meet Honda's requirements. It is not an API oil and does not have the API donut. The "OE" oil that Amsoil sells does (seem to) meet Honda's requirements...

Easily could have gotten the guy (or someone else) very severely hurt if it happened to one of the front ones first. On top of it being flat out irresponsible to be driving around on these tires in the snow in the first place. Honestly, your insurance company should straight-up deny any claims...