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Right, but my point is that the results people see from MMO are hard to quantify. Its like the improvements I saw after using Regane - I can't measure them, I just know it worked. This was the first time any PEA based cleaner was used on this car though, so any of them would have produced similar results. Regane just happened to be the easiest to obtain here.
Sure. I'm just being difficult (it can be a meat grinder in here)
I really don't have anything against the stuff ..especially in fuel.
Unlike oil, fuel ..hmmm..how can I word this without stepping on myself???
Even top tier fuel can manage a few liabilities to it in some instances. Fuel is a "globally managed" commodity, by that I mean mostly generic with some minor distinctions in end vendor additives.
So, there's work to be done for the end user in some cases, your reference to REGANE containing PEA, being a good example. You probably won't see any more MPG with using PEA, but drivability and reduction in knocking ..starting issues ..misdiagnosed piston slap due to CCDI ...etc..etc.
I guess I'd say that there's a sizable minority that can gain benefit from using such agents.
Oil is a different animal ..for me anyway. When stuff like Rislone and MMO started out, the consumer (before the term existed) had choices that were probably ND SAE 20 and ND 30. Even through the 70's the fundamentals of lubricating oils were pretty primitive. Stone knives and bear skins.
Now I can choose from a very broad selection of high quality oils from multiple producers that are so far ahead of typical needs curve it's not even funny.
There will always be exceptions. If you've got some exceptional circumstance, then you take exceptional measures.
What people need to NOT turn that around into ..is that they're getting added benefit when there's no need to begin with.
You can't get above ZERO ..which is where you start (and typically stay ..within some standard deviation), you can only combat negatives.