On my website, you can buy
2 Emgo filters for the R3 for
less than the price of
1 K&N. Not to say that the K&N isn't a good filter because it is. I carry both. Having said that however, it's the oil, not the filter that insures your engine is properly lubricated. If you were to change your oil at 10K but you changed out the filters at 5K, I would think that would be all the better and, 2 Emgo's work out to less than the cost of one K&N in a 10K change interval.
Under the Magnuson-Moss Warranty Act, no manufacturer can invalidate a warranty claim (during the warranty period) if the owner of the motor vehicle deviates from the OEM spcified
brand of lubricant or lubricant filter. So long as the end user maintains the proper service frequency (as specicifed by the manufacturer) and uses lubricant's, filters and replacement parts that meet the criteria and specifications set forth by the manufacturer, the manufacturer cannot invalidate any warranty claim using those conditions.
Ever since the initial oil change at 500 miles, my R3 has been lubricated with 15-50 Amsoil JASO-MA. I changed the oil at 5K and that's the oil that was in it when Gus tore it apart last week. It also had an Emgo filter on the front. Didn't quite make it to 10K before it dirtied the sheets.
