The Best Motorcycle Coolants (Review) in 2023 | Autance

Kicking off our list is this high-quality coolant from Honda. The all-in-one solution will help your engine keep a steady temperature year round, since it acts as motorcycle antifreeze as well as coolant. Engineered specifically for Honda and Acura vehicles, it’s the perfect option for a wide range of bikes. Being free from silicates — a conventional antifreeze ingredient that can deteriorate over time — the durable coolant has an impressively long life. In fact, many motorcycle enthusiasts note that this solution continues to work well after as many as five years. It’s also made with de-ionized water, to ensure it won’t form a scale on engine components. The solution is simple to use, too: ready-mixed, the coolant can be put to use straight away. Drivers across the board were impressed with the functionality, durability, and budget-friendly price point offered by Genuine. If in doubt, this rugged coolant and antifreeze solution is always a safe bet.

This Engine Ice coolant has also earned a spot on our list. Engine Ice are well known for producing high quality coolants, and this option is no exception. Unlike many options on the market, this unique formula is biodegradable, and non-toxic. It’s also phosphate-free, for a longer lifetime. Each bottle arrives ready mixed, and ready to use, for maximum convenience. In use, the coolant  effectively keeps boil over temperatures to 256 degrees Fahrenheit, while offering antifreeze protection at temperatures up to -24 degrees Fahrenheit. In other words, the engine is kept at its optimum temperature whatever the weather or season. On average, the coolant will reduce your engine’s operating temperature by 20 degrees, making it the perfect dirt bike coolant, or racing coolant. In fact, it’s approved for use on a number of racetracks world wide. The high performance formula will also keep corrosion at bay, whether the cooling system is copper, cast iron, aluminum, steel, or magnesium and solder. It also contains propylene glycol, known for its ability to prevent pump gasket failures.

Honda has earned themselves a second spot on our list, thanks to their ready to use coolant. This new blend is fully compatible with their original green coolant, so there’s no need to flush out your bike’s system prior to use. The versatile solution is suitable for use with practically any motorcycle, ATV, UVT, or even snowmobile, making it a good choice for garages with more than one vehicle. Made with 50% water, 50% glycol, and other ingredients, the coolant strikes the perfect balance for consistent engine temperature. It also contains a non-abrasive corrosion inhibitor, providing your cooling system with excellent protection. Thanks to its carefully blended formula, the coolant offers antifreeze protection at temperatures as low as -34 degrees Fahrenheit. Meanwhile, a high boiling point of 265 degrees Fahrenheit ensures it’s well equipped for year-round use. Drivers say that the coolant works perfectly, keeps cooling ports clean, and offers excellent value for money.

The next motorbike coolant to earn a place on our list is by EVANS. The fluid is formulated to work in harmony with as many different vehicles as possible — modern and classic, gasoline and diesel — making it a great option if you have more than one motorcycle. With an impressively high boiling point of 375 degrees Fahrenheit, the rugged coolant won’t vaporize even with intense driving, eliminating boil over, and reducing the strain on your system. EVANS has achieved this high boiling point by creating a water-free formula. This lack of water also prevents corrosion and cavitation, keeping maintenance costs low over time. By significantly lowering the engine temperature, the coolant prevents a host of issues too, including pre-ignition and engine knock. Without the interference of these issues, your vehicle can run more efficiently and achieve better fuel economy. This coolant may be a little pricier than other options on our list, but the cost is far outweighed by the money you’ll save on fuel and maintenance.

The next motorcycle radiator fluid to find a place on our list is by Maxima. The ready to use formula combines cooling and antifreeze properties, making it perfect for year-round use. The premium blend carefully balances 50% deionized water with antifreeze ingredients, so your engine can keep performing in temperatures as low as -34 degrees Fahrenheit. With a high boiling point of 265 degrees Fahrenheit, the coolant is just as able to take the heat during the summer months. As well as protecting your engine against extreme temperatures, the coolant is also designed to stand up to corrosion and cavitation, thanks to anti-foam agents and glycol. Thanks to its low-silicate content, the fluid is perfectly suited to use with virtually any motorcycle. Whether your vehicle’s cooling system is made from aluminum or magnesium, the formula offers great results, without doing damage.

Royal Purple has also earned a spot on our list, thanks to its coolant additive. With its two-in-one corrosion inhibitor and wetting agent, the formula offers enhanced protection of your aluminum cooling system. Its advanced blend helps boost your coolant’s performance, and maintain the cooling system — all without the need for a coolant flush. It works to improve engine efficiency by reducing the coolant’s surface tension. This tweak allows heat to travel more easily, and better radiate away from the engine. The additive significantly reduces hot spots in the vehicle’s engine and cylinder heads. In use, it can reduce the coolant’s average temperature by as much as 22 degrees Fahrenheit, resulting in greater efficiency, and greater power. Thanks to its impressive corrosion resistance, this handy additive can also increase the lifespan of the cooling system it services.

EVANS have earned a second spot on our list, with this water-free engine coolant. Specifically designed for ATVs, UTVs, trail bikes, and motocross bikes, it’s the perfect solution whatever vehicle you drive. The water-free formula practically eliminates corrosion, along with pump cavitation. This adds up to a coolant that helps keep your engine running smoothly for years to come. It can also have a surprising impact on the vehicle’s fuel efficiency, helping you save money on gas. Race teams have depended on EVANS for years, to protect their engines from the strenuous conditions of the track. The coolant has an impressively high boiling point of 375 degrees Fahrenheit, so there’s no risk of boil over, even in hot conditions. Without vapor in the cooling system, you can avoid a swathe of engine problems. Drivers agree that this coolant does an excellent job preventing your bike from overheating, whatever the weather.

The second coolant additive to make our list is by Motul. The handy formula is specially designed to reduce your engine’s temperature by as much as 30 degrees Fahrenheit. It works by improving the coolant’s heat exchanging capabilities, making for a more efficient exchange in the radiator. The additive also protects against corrosion in aluminum, magnesium, cast iron, copper, brass, and bronze cases. On top of this, the blend is friendly to plastic, seals, and rubber pipes, managing to avoid cavitation over a broad range of temperatures. Overall, it significantly improves the engine’s cooling capabilities, keeping things at the perfect temperature for efficient driving. Adding Motul’s solution to your vehicle’s coolant can significantly reduce the risk of pre-ignition, knocking, and cooling system issues, keeping the engine running smoothly for longer. This improves efficiency can also save you money on fuel and repairs.

Motorex have also earned themselves a spot on our list, with this ready to use coolant. Its ethylene glycol-based formula works to provide excellent protection against not just cold temperatures, but also corrosion, limescale deposits and overheating. The versatile blend is suitable for use with all modern engines but works best with aluminum engines – especially those operating under a high load. For this reason, it’s a great racing coolant, capable of maintaining a stable temperature even in tough conditions. For ease of use, the formula has already been diluted with water, so it’s ready to go straight away. Free from the silicates, nitrates, amines, and phosphates used by earlier coolants, it’s designed to have an impressively long service life. As well as an effective coolant, the mixture also works as a great antifreeze, protecting the engine at temperatures as low as -28 degrees Fahrenheit.

Last, but not least, Red Line’s ‘Super Cool’ coolant has earned our final spot. Blended with their patented ‘water wetter’, this high-performance coolant is the perfect fit for motorcycles, ATVs, karts, and more. The ready to go formula is simple to use — just pour and go for great, consistent results. Each batch has been blended with pure, de-ionized water, to prevent corrosion before it can do any damage to your cooling system. Thanks to the addition of corrosion inhibitors and lubricants, the versatile solution also helps to clean and lubricate pump seals, keeping them in great condition while you drive. In use, it significantly reduces the formation of bubbles and vapor, reducing the coolant’s average temperature by up to 20 degrees Fahrenheit. Unlike other coolants on the market, it’s made without glycol compounds. During testing, this innovative formula was found to be more effective when it comes to heat transfer, keeping engines at an optimum temperature like never before. Designed for use with all modern engines, the coolant is a great fit for cast iron, aluminum, copper, brass, and bronze cooling systems.