Correct brake fluid for a 1973 2.0? Options

[NJ914Guy]

I need to replace the cap/seal on the break fluid reservoir; have some weeping into the top catch area and the rubber seal on the cap is bad (no fluid on the floor inside the car). There is still plenty of fluid in the master cylinder reservoir and the breaks feel great! So I think I caught it before air entered the system.

Before replacing the cap/seal, I want to top off the break fluid. Any recommendations for what type of fluid to add? And is it OK to mix & match with what's already in there?

Thanks!

-Chuck

[detoxcowboy]

Myself and alot of others use Ate Super Blue DOT 4, you should flush your brake fluid every 2 years one can will do it easily, with left some left over if you buy a whole can.. They make both a Blue and a Non-Blue so you can see when youve flushed it through..

Brake fluid Approx. 0.35 liter / 12 fI. oz. meeting SAE Spec. J 1703 a

Mix and Match is not OK with certain Brake Fluids, research (Google) before doing that because you did not state what your currently using. (IMG:style_emoticons/default/wink.gif)

but got this regarding the reccomended Ate SupeBlue and mixing from research (Google)

Super blue brake is a DOT 4 brake fluid. It has a boiling point of 536°F and a wet boiling point of 388°F. Resist brake fade much longer than traditional brake fluid. Can be mixed with brake fluids meeting the same specifications (DOT 3 and 4)and with DOT 5.1.

One no no is mixing Dot 5 w/ any of the others, Dot 5.1 is different (not-silicon based as Dot 5 is though confusingly named simular) again it is always wise to research (google) for your situation specifically.