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Just got off the phone with Bev Hills Duc after being quoted $100.- for an oil change!! 
Anyway, that figure included $40.- for synthetic oil, according to the owner I'll run into valve stem problems if I run anything but synth. I'm not one to question a prof. mechanic's opinion, but I'm curious anyway - is that true? What type of oil are y'all using? Any preference for (cheap) filters?
I've used all kinds incl. car oil in my Hondas and Yamahas with no problem at all, you just hear all kinds of stories about Ducs breaking down cos the owner rubbed the wrong kind of wax on the tank so...
Thanks in advance!
-R.
Anyway, that figure included $40.- for synthetic oil, according to the owner I'll run into valve stem problems if I run anything but synth. I'm not one to question a prof. mechanic's opinion, but I'm curious anyway - is that true? What type of oil are y'all using? Any preference for (cheap) filters?
I've used all kinds incl. car oil in my Hondas and Yamahas with no problem at all, you just hear all kinds of stories about Ducs breaking down cos the owner rubbed the wrong kind of wax on the tank so...
Thanks in advance!
-R.