Which Brake fluid?

[Scar13]

On the 2010 ec250 My res says dot 3 or 4..

Can I get use some from autozone or is a specific race version required?

[noobi]

Yes, dot 4 is dot 4.
I'd say go for one made by a reputable lubricant company.

To make it more confusing, you could use dot 5.1, but not dot 5.
As a rule of thumb, the higher the dot rating, the higher the boiling point.

[Jakobi]

I just did mine the other day after all this discussion and mine being over due for fresh fluids. Like Noobi said. Any bottle that says "for use in DOT 3 or 4" will cover it. I just purchased from supercheapauto and ended up with Castrol racing which I think is actually a DOT 5.1 spec.

[Cruiser]

A good 4 or 5.1 is good,, cheap 3 boils too easy if your a brake dragger. I actually use John Deere dot 4 and I do not overheat the fluid anymore. I even overheated some "racing" fluid. Yes I do drag brakes on occasion.