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"How Long Will Your Oil Last?"
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Site Last Updated: 05-21-2023 Site Navigation Please use my Customer/Tracking number (470077) for the links below when filling out the online forms. AMSOIL Online Application GuideTo Request a Free Product Catalog To Become an AMSOIL Preferred Customer For Information On Becoming a Dealer To Sell AMSOIL In Your Store Or Purchase For Use In Your Business Equipment Products by Type Useful Guides Recommended Oil Drain Intervals Guide* AMSOIL Motorcycle Lookup Guide* Recommended ATF, Gear Lube, Drain Interval Guide* AMSOIL Air and Oil Filter Recommended Change Intervals* Other Great Products Interesting Articles Harley Owners Should Choose AMSOIL!! How Do I Know The Test Results Are Valid? Why AMSOIL and not a brand name oil? Nothing Outperforms Mobil1? Wrong!!! The Federal Trade Commission Cracks Down On Oil Additives What About Oil Additives Like Slick 50 And Prolong? 409,000 Miles Without An Oil Change Over 535,000 Miles Testimonial
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Harley-Davidson Confirms To AMSOIL That The Use Of Synthetic Motor Oils Other Than Harley-Davidson Oil Does Not Void Warranty Coverage
January 31, 2003 Aaron Scanlon Dear Mr. Scanlon: Thank you for your recent letter requesting information on Harley-Davidson's one-year, unlimited mileage warranty when Synthetic Lubricants are used. Until now, the Motor Company has never supported the use of synthetic products in our vehicles because there had never been any test validations completed on the numerous formulations in HD/Buell motorcycles to determine the viability of using these products on Harley-Davidson products until now. We have developed a specially formulated synthetic fluid called SYN3. This fluid can be used in Harley-Davidson engines, transmissions and primary chaincases. This product had been exclusively designed for Harley-Davidson and is the only synthetic product tested and certified by Harley-Davidson engineering for use on HD/Buell motorcycles. The use of a different brand of fluid does not void the one-year, unlimited mileage warranty unless it can be confirmed that the use of such products was the cause of the failure. Thank you, Mr. Scanlon, for taking the time to write to Harley-Davidson and allowing me to answer your questions. Sincerely,
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