Uni-syn:

http://www.thezstore.com/page/TZS/PROD/TE/60-9965

THERE YOU GO MIKE NAILED IT . I bought mine at the local parts store speed section for $25.00 about 6 years ago . Gary

Just for reference, here is some great info on the subject of damper oil.

Good information I hadn't seen that before. I do use the 20w all year round here in Portland Oregon. Although I haven't any experience below +20 F as it rarely drops below that in winter. Usually it is more like in the mid 30s . Gary