Tag Archives: boiling point

What’s the Difference Between DOT 3 and DOT 4 Brake Fluid? John Baker|Feb 27, 2018 10:12 AM The primary difference between Dot 3 and Dot 4 is their respective boiling points. I suspect I know your next question. But first, some background. The U.S. Department of Transportation classifies brake fluid into four main categories: DOT […]