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I dispute your claim that you are some authority to disput anyones claim and are only here as a troll or some other type of argumentative flamer. You have no factual scientific basis to claim additive packs accomplish anything or that your motorcycle (if you really have one which I doubt)"chews" oil more than mine does because you have no data to support that fiction. Basically you need to crawl back under your rock and wait for the next guy who owns a Harley to post something here because you are obviously one of those guys who dislikes Harley Davidson riders.
When things get ugly, it tends to make both parties look quite ignorant, so I won't respond with like ugliness, and save us by half...
First, I have already stated that it was unfair of me to place all the dealspeak mumbo jumbo and mythology on the backs of the harley guys, as this sort of ignornace exists in all motorsports.
My authority to form, and voice, an opinion are atributed to both my Mother giving birth to me, and that the birth was in a free society. I need no more authority.
An I am not here as a troll or flamer, as you so elequently put it. I am here because I am interested in truth. In particular, truth in lubrication and ICE's, as well as industrial issues.
Maybe we can volley with something of substance now?
You made this claim in another thread:
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I get a 10-20*F heat reduction from using synthetic MC oil in my air cooled Harley. This is a well published fact in air cooled engines. That is really the only reason I use synthetic.
You don't seem to be able to point to any of these "well published facts"
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My only requirement is a 20w50 synthetic because I have an air cooled engine and it's a TC88 which uses oil jets to cool the piston skirts so dino 20w50's shear pretty quick and the synthetics give you a 10-20 degree heat reduction on average.
Again, I disputed the fact that synthetic basestock is responsible for lowering operating temps.
And then you state the following:
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You have no factual scientific basis to claim additive packs accomplish anything
I think there are stacks and stacks of data that will back up the importance of the additive package in ANY oil.
You have ventured past the motorcycle forum here, yes?
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The motorcycle oils really have a more robust additive package that their auto counterparts. This really comes into play with air cooled engines.
Well, you have apparently been paying
some attention...in that you recognize perhaps an additive package does indeed have something to do with the integrity of an oil.
However, your claim to a "motorcycle oil" having a more robust package than its PCMO counterpart is where the myth again started.
If you do your homework, you will find that the requirements for an oil to carry the JASO MA or MB certification, which I have to assume you are refering to when you talk about "motorcycle oils", is a very light test to pass. There are only a half dozen items that concern the integrity of the oil that are even pertinent. The rest of the certification consists of the frictional charectoristics on the wet clutch assembly.
SM and GF4 rated oils have to meet loads of testing criteria...far more than any "motorcycle" oil has to pass. Including bearing corrosion, ring end gap wear, cam lobe wear, valve train wear, piston skirt wear, sludge testing, and a whole host of other criteria that the "mc" oils simply do not have to undergo.
In fact a motorcycle specific JASO MA rated oil can be a 14 year old SG oil, as long as it passes the meager criteria for JASO T903:2006.
There is simply nothing to the testing that points to the JASO certified "motorcycle marketed" oils having more integrity than their PCMO or UEO counterparts sitting on most all shelves.
And to rear back an state that we must use a motorcycle specific oil because of it's superior integrity, or for any reason at all, besides arguably the frictional charectoristics it shows the clutch plates, is simply not true. Such a blanket statement cannot be made.
And as there is plenty of data to back up my position, and nearly nothing but anecdotes from those who have obviously not done their homework before deciding to provide recommendations, I have to catagorize such under-researched recommendations as dealerspeak mumbo jumbo, and track mythology. Other more colorful terms do come to mind though...
