Oil filters

[Gnasher]

''It's not that they don't change the oil it's that they don't really need to''
Are you suggesting that the engine as it comes out of the  factory contains no contaminants whatsoever? That the engine is assembled in perfectly sterile conditions, and that machining causes no residual material at all? We're not just talking about the bores here. The oil circulates around all parts of the engine, gearbox etc.

Mate it's an engine made in a factory "sterile conditions" behave yourself  :rolleyes  Look engines and their manufacture has improved leaps and bounds in recent years, they are all cleaned and assembled in clean conditions, because of material now used and machining techniques components are manufactured to very fine tolerances, which in turn means almost no running in i.e. partials of metal being worn away thus transferring to the oil.


This is why oil had I repeat HAD to be changed as these partials would damaged the engine if left, you don't get this any longer yes there are some but it's extremely little.  If you buy a new car you don't take it back at 600 miles to get the oil changed...do you why...............yep because it don't need changing as I said earlier 20k service intervals, car and bike engines/gear boxes etc aren't to dissimilar these days. The main difference and why car service intervals are so much longer than bikes is most bikes use the shame oil to lub the gearbox, which exerts shearing action, this breaks down oil faster hence greatly reduce service intervals.  The bike industry is much smaller and of course they're not going to give away a money spinner of now CHARGING you for the 600 mile service.......................... :rolleyes 
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Of course it needs to be drained and replaced.

[/size]Yes of course it needs changing just not at 600 miles............................... :rolleyes :rolleyes  if you the owner wants to change your oil every 2k (I know some do) fill you'r boots all you're doing is throwing money down the drain and making increased sales for oil company's and not help the environment. [size=78%]


Right that my last word on this one, have a nice day.