Some 30+ years ago, one of the major motorcycle magazines (maybe Cycle World, Cycle, Motorcyclist. or the equivalent) did and interesting research project. They took a pair of brand new Kawasaki 4-stroke four cylinder street bikes and drove them hard for something like 30,000 miles (guessing at that mileage), but these guys put their test bikes through their paces. One they did the regularly factory recommended and scheduled oil & filter changes. The second bike they did nothing to as far as oil/filter changes. Both had done to them whatever repairs popped up from time to time (eg. broken cable, maybe valve adjustments, etc), and of course, oil was topped up as necessary to keep the oil level correct. After the driving part was over, they tore down both engines and measured all clearances accurately. The conclusion was that there was no noticeable difference in engine wear between the two engines. I wish I could find a link to that article. To be honest, I think all this stuff with "I'll only buy brand X but never buy brand Y" is a bunch of hog wash. As long as the oil meets the specs for your engine, I really don't believe it makes a lot of difference.
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Today's Featured Article - Show Coverage: Journey to Ankeny - by Cindy Ladage. We left Illinois on the first day of July and headed north and west for Ankeny, Iowa. Minus two kids, we traveled light with only the youngest in tow. As long as a pool was at the end of our destination she was easy to please unlike the other two who have a multitude of requirements to travel with mom and dad. Amana Colonies served as a respite where we ate a family style lunch that sustained us with more food than could reasonably fit into our ample physiques. The show at Ankeny
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