That's total bunk!
Modern synthetics and non-syn oils are totally interchangeable. You can add one to the other with no issue. Why you would do that is the question. Synth offers much better barrier protection for start up and you will have the advantage of extended changes. Just DON'T use a Synth that is listed as "Energy Conserving" as that is incompatible with a wet clutch system in a motorcycle. My Nighthawk never saw synthetic before I took her over from the original owner. Now, that's all she gets. Mobil 1 4T Racing 10w40 or the Amsoil 10w40. She's as smooth as a top at start-up and aside from an issue I had from a POS K&N Filter, her Lab tests show proof that she's benefiting from Syn. The proof is in the pudding. If you want to know what's really going on inside, get your oil tested. It's a $22 charge and add $10 to have the TBN done, too. That will tell you how much additive is left in the oil at testing and will be the guideline for how much time you can go between changes and have complete protection still. In my case, I have gone 2500 miles between changes and still have enough additive present to go another 1500+. I personally choose to keep my interval more frequent on all my bikes and generally change at about 2k. --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Nighthawk Motorcycle Lovers!" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/nighthawk_lovers?hl=en -~----------~----~----~----~------~----~------~--~---
