I've had dealers recommend Amsoil (that they sell) in the past. It's all BS that it voids warranty. Running w/out oil will void warranty in many cases (they don't fix dumb for free), but running a different brand w/in spec is fine. And we wonder why people keep flippin' the patches on their jackets...

 

No !! Using Amsoil does not void your warranty...it is illegal for HD to say so..as seniorsuperglideE8 said, read the Magnusson Consumer Protection Law, aka the Magnusson-Moss Act..

Here is a link if interested:
http://www.amsoil.com/magnuson_moss.aspx?zo=1813824

 

Was it the manager at the dealership that told you this? If so, ride as fast as possible away from them and never look back.

If it was just the service guy, call the manager and let him know what kind of BS this guy is sprouting off on. The manager would probably like to know if there is a guy in his building lying to the customers. Maybe you can get a free oil change out of it (once you threaten to leave for another dealer). Or you still leave for another dealer....and just feel good in helping the manager out.

 

For anyone that has EVER been told that something will void your warranty....

Tell the person telling you that to put it in writing

Then ask them if they even know what the Magnuson–Moss Warranty Act actually says.

http://en.wikipedia.org/wiki/Magnuso...s_Warranty_Act