January 31, 2003
Aaron Scanlon
AMSOIL Building
Superior, WI 54880
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,
Lisa Sagen
Powertrain Customer Service
