On Tuesday, January 6, 2015 8:09:21 PM UTC-8, bumper wrote:

EPDM rubber is what you want for DOT 3 compatibility. Look at the following compatibility list, Dot 3 is under "Brake fluid DOT 3, glycol type". Viton is NOT recommended.

Thanks for clarifying! I thought Viton was the right stuff, but it looks like I was wrong about that.

Thanks, Bob K.