What brake fluid? DOT 3,4, or 5

[495v]

What do most of you prefer to use in your trailer brake system's? I know that the main difference is that DOT 5 is silicon based and the others are not which is why they should not be mixed, but do they offer different benefits. What works best?

 

[DJ]

Re: What brake fluid? DOT 3,4, or 5

Your brake controller should give a recommendation. All are OK as long as they are a fresh fill (after bleeding) and are not mixed.