Red Line RL-600 Brake Fluid (DOT 4)

Red Line RL-600 is the ideal brake fluid upgrade for Subaru Crosstrek owners who daily drive during the week and hit the trails on the weekends. With a high 594°F dry boiling point and a stable low-moisture formula, RL-600 delivers more consistent braking under heat, steep descents, and loaded gear all without sacrificing reliability for everyday commuting.

Unlike track-only fluids, RL-600 is engineered for real-world use. It fits perfectly into OEM Subaru systems, improves pedal feel, and adds a layer of safety margin when you’re off-road once a month or navigating mountain roads. It’s a simple, worthwhile upgrade for Crosstreks that see a mix of daily driving and light adventure use.

For the best long-term performance, you should flush your brake fluid every 1-2 years, which aligns perfectly with RL-600’s low-moisture absorption design. If you want better braking confidence without going “full race,” this is the sweet spot.

• Ideal For: Daily drivers + occasional off-road use

• Type: DOT 4 glycol-based performance fluid

• Dry Boiling Point: 594°F

• Wet Boiling Point: 400°F

• Low moisture absorption for longer service life

• Improves pedal feel + fade resistance on steep descents

• Compatible with Subaru OEM seals and systems

• Great for brake refreshes paired with upgraded pads/rotors