Don, i am not trying to get into a pissing match here but your examples are irrelevant and you are not listening to what i am saying, 1 of the quotes i used earlier was a quote from a guy from Pirelli tyres.
Gasoline doesn't break oil down, otherwise the fuel dilution of crankcase oils would be problematic.
You couldn't be more wrong mate, petrol is a distillate and a volatile liquid, it hugely different to the oil it originally came from and has more in common with the way alcohol is made from water, yeast and sugar, once distilled it has not much in common with the original substances, PETROL DOES BREAK DOWN OIL, if it didn't, you wouldn't wash down your bike or car parts with it. For your information there is a #$%* load more to a tyre than oil based products and once again petrol breaks down the polymers in a tyre and renders it dangerous.
Petrol degradation of oil in the crankcase IS A HUGE PROBLEM.!!! thats why in 2 stroke engines they use an entirely different oil. If you have fuel in your 4 stroke crankcase your oil is #$%*ed....Which makes your next quote laughable....
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In the final analysis, you are responsible for your own education, not me.
Nice that you revert to insults to make your point, education doesn't make you smart.......and ignorance is no excuse.
Mick
PS ....I thought it was common knowledge that oil products were used in making tyres, you carry on like its a relatively new discovery and your link doesn't say a bloody thing about petrol degrading rubber and there isn't even a MSDS there that would contain all the warnings. Do yourself a favor and email a Motorcycle tyre company and save yourself any more embarrassment.