Coolant Additives

Optimize your engine’s cooling system and extend its life with advanced coolant additives from Phantom Motorsports. Whether you’re looking to improve heat transfer, prevent overheating under heavy loads, or protect against corrosion and scale, our selection of premium additives offers a simple and effective upgrade for any vehicle. These innovative formulas are designed to work with all types of antifreeze and coolant, giving you added protection and peak performance whether you’re on the street, at the track, or off-road.

At Phantom Motorsports, we source coolant additives from trusted brands known for real-world results in racing, daily driving, and heavy-duty applications. Easy to use and compatible with aluminum, copper, cast iron, and other common cooling system metals, our additives reduce hot spots, inhibit rust and deposits, and can even help lower engine temperatures for increased reliability. Take control of your engine’s health and maximize longevity with the right additive for every cooling system.

FAQ

What do coolant additives do?
Coolant additives are concentrated chemical formulas that improve the performance of your existing coolant by increasing heat transfer, reducing engine temperatures, preventing corrosion, and minimizing scale or deposit buildup.

Can I use coolant additives with any type or color of coolant?
Most are formulated to be compatible with all major types—including conventional (green), OAT, HOAT, and long-life coolants. Always check the label for full compatibility information.

When should I add a coolant additive?
Anytime you want extra protection against overheating, corrosion, or scale—especially if you drive in extreme temperatures, tow heavy loads, race, or want to maximize longevity between coolant changes.

Do coolant additives lower engine temperature?
Yes, many additives are designed to improve heat transfer and reduce hot spots, often resulting in lower operating temperatures and more consistent cooling.

How do I use coolant additives?
Simply pour the recommended amount into your radiator or coolant reservoir with the engine cool and follow the package instructions. Some products are added during regular coolant changes, others can be topped up as needed.

Will coolant additives fix leaks or major cooling problems?
These additives are for performance and protection, not for sealing leaks or repairing major mechanical faults. For leaks, use a dedicated sealant or address the underlying issue.

Are coolant additives safe for aluminum or other modern radiators?
Yes! Most are specifically designed to protect and be safe for aluminum, copper, brass, and plastic components found in modern cooling systems.

What if my coolant additive arrives leaking or damaged?
Customer satisfaction is our priority. If your additive arrives leaking, damaged, or unusable, contact us within 7 days for a prompt replacement, exchange, or refund.