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Yamaha MX & Off-Road Dirt Bikes
motorcycle vrs automotive oil?
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[QUOTE="HiG4s, post: 17716, member: 22165"] WARNING!!!!! I see NO imperical data to support this articles conjectures. I cannot beleive this article for one minute. While much of this new SJ catagory may indeed meet motorcycle needs in general, the whole Idea that all SJ oils are the same is hog wash. In the mid 80s, before SJ, Cycle magazine did the research and took several oils of the highest rating, auto and motorcycle alike to an aeronautics test lab where they could actually test the oils. The results of this testing was that all the motorcycle oils performed much better than any of the auto oils. With Castrol GTX performing the best of all the auto oils. And I MUST, say the idea that auto oil should be fine in your motorcycle is abominable. These oils can use, at least in part, oil from shale which contains parafin. This is done because parafin increases detergent rating. The same way some states allow the use of alcahol in gas to increase the octane rating. Parafin can burn and glaze a clutch. Cars do not have oil bath clutches. I rode street bikes for many years and never had a problem until I used Pennzoil auto oil ONE TIME and glazed and ruined a clutch set. I Switched back to motorcycle oil and never changed clutch plates in that bike or any street bike again. Now Pennzoil does make motorcycle specific oil. I still would like to see some imperical data before I use it. Oh, and just as a note, for 5 years I was a licensed master motorcycle mechanic in Michigan. You can do what you want, but I will NOT use auto oil in any dirt bike and rarly use it in a street bike. And when I do I only use Castrol GTX. Final note, I understand Motorcycle Consumer News did auto vs motorcycle oil testing in their Feb 94 issue. I have e-mailed them to try to get this back issue or a copy of the article and will let everyone know the results. [This message has been edited by HiG4s (edited 03-13-2001).] [This message has been edited by HiG4s (edited 03-13-2001).] [/QUOTE]
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Dirt Bike Discussions By Brand
Yamaha MX & Off-Road Dirt Bikes
motorcycle vrs automotive oil?
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