What kind of brake fluid does a 2018 Challenger take?
The 2018 Dodge Challenger uses DOT 4 brake fluid.
Brake fluid is a glycol-based hydraulic fluid that must meet certain standards to protect the seals, prevent corrosion, and perform under the high temperatures generated by modern ABS-equipped braking systems. For the Challenger, the owner’s manual specifies a DOT 4 fluid that meets SAE J1703/J1704 performance criteria. Silicone-based DOT 5 fluids are not recommended, as they can cause compatibility issues with the ABS system, seals, and track-style driving pressures. Some owners consider DOT 5.1 as an alternative, but you should verify the exact specification for your model with the manual or a Dodge dealer.
Brake-fluid specification and compatibility
The Challenger’s braking system relies on a glycol-based fluid to maintain performance under load. The official guidance centers on DOT 4 fluid that complies with common automotive standards, ensuring proper lubrication and seal integrity in the ABS module and callipers.
Key guidelines for brake fluid choice and handling:
- Use a DOT 4 brake fluid that meets SAE J1703 and J1704 specifications (glycol-based, moisture-absorbent, suitable for ABS systems).
- Avoid DOT 5 silicone-based fluids. They are not compatible with most ABS systems and can cause seal damage or air entrapment.
- DOT 5.1 is glycol-based and often compatible with DOT 4 systems; verify with the manual or dealer if you plan to use it.
- Do not mix different brake fluids. If you replace the fluid, flush the entire system and refill with fresh DOT 4 (or the recommended alternative).
- Check the fluid’s age and moisture content; replace the fluid every 2–3 years, or per the maintenance schedule, to maintain proper brake performance.
These guidelines help ensure the Challenger’s braking system maintains reliability, especially under sporty driving conditions. For exact numbers and product approvals, consult the owner’s manual or your Dodge dealership.
Maintenance tips and service considerations
During a brake-fluid change or service, technicians typically inspect the fluid level, check for contamination, and bleed the brakes to remove air. Use the recommended DOT 4 fluid from a sealed container, keep the reservoir cap closed when not actively adding fluid, and ensure the system is properly bled.
In summary, the 2018 Challenger requires DOT 4 brake fluid that meets SAE J1703/J1704 standards. Do not use silicone DOT 5, and avoid mixing fluids. If you have performance needs or questions about DOT 5.1, check the manual or consult a dealer for the precise specification for your vehicle.
Summary
For the 2018 Dodge Challenger, use DOT 4 brake fluid that meets SAE J1703/J1704. Do not use silicone-based DOT 5, and avoid mixing fluids. Replace fluid every 2–3 years or as recommended, and consider higher-temperature DOT 4+ or DOT 5.1 only after confirming compatibility with your car’s braking system. Always refer to the owner's manual or a Dodge service professional for exact guidance.
