7 Best Antifreeze For RV Cumming Diesel & Motorhomes 2023

Having the best antifreeze for RV Cumming diesel and motorhomes goes a long way in your RV’s life.

Internal combustion engines use antifreeze to transport heat between the combustion chambers. Therefore, the coolant you use in your RV is critical to its performance. Therefore you must be extremely careful when purchasing it, no matter where you live. You can find the best antifreeze for RV Cumming diesel here in a comprehensive evaluation of the top 7.

If your motorhome is powered by a Cummins engine, you are aware of the brand’s exceptional quality. However, you may need to be more selective in your choice of antifreeze if you want that engine to run as smoothly as before.

7 Best Antifreeze For RV Cumming Diesel & Motorhomes

We’ve selected the 7 best antifreeze for RV Cumming diesel and motorhome. You have the option to view all of the variants and make your selections based on what you need.

1. Zerex Extended Life Red Heavy-Duty Antifreeze

For the protection of diesel engines from liner pitting, Zerex has developed a heavy-duty antifreeze in the colour of blood red. This inhibitor is also added to the liquid to prevent hard water scales from reducing engine life.

Denatonium benzoate, a bittering agent, is found in the liquid at a concentration of 30 to 50 ppm. So for every 50 gallons of system capacity, you’re required to add one bottle of Zerex Extender, which is good for 300,000 miles or three years. The fluid in the extender should be replenished after each cycle.

Ethylene glycol solution is traditionally used to manufacture the finest antifreeze. It’s no different with Zerex’s newest offering. This coolant is made with virgin ethylene glycol of the highest grade to prevent freezing and boilovers.

To prevent cavitation and corrosion of the cylinder liners and the engine, the manufacturers utilize the previously described inhibitors in the form of an acid corrosion inhibitor package.

Highlighted Features:

• This product comprises virgin ethylene glycol of the highest quality, protecting against freezing and boiling.
• The antifreeze is a poly quarter alcohol-based antifreeze.
• When operating under boiling point circumstances, it has a low evaporation rate.
• Diesel engines are protected from liner pitting and hard water scale deposits by special inhibitors, extending the service life of the system.
• You can go 600,000 miles and six years without changing your antifreeze.

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2. ACDelco 10-101 DEX-COOL Extended Life Coolant

This Extended Life coolant is manufactured by ACDelco. This Extended Life coolant is manufactured by ACDelco. It is designed to last about five years or 150000 miles. Brass, cast iron, steel, solder, and copper components can all be protected by the fluid. And in this way, it contributes to corrosion resistance.

Antifreeze ACDelco GM OE Dex-Cool Extended Life Coolant is a premium-grade, orange-coloured, silicate- and phosphate-free coolant with a chemical composition. This mixture helps prevent metal components in contact with the fluid from corroding.

The concentration of this coolant, which is based on Carboxylate technology, possesses all of the features necessary to maximize the efficiency of future hybrid vehicles. When used in a vehicle not initially built to utilize Dex-tool, the firm recommends replacing the coolant every two years or 30000 miles.

This product is compatible with all vehicles that require Dex-Cool coolant. The undiluted recipe allows the user to adjust the ratio of water to coolant/antifreeze for optimal performance in various situations.

Highlighted Features:

• Long shelf life and stable storage – up to 8 years.
• Specifically formulated for extended service intervals.
• Due to the non-silicate formula, it retains exceptional heat transfer characteristics for increased water life.
• Provides superior protection against high-temperature corrosion for metal components.

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3. ISO-HEET Water Remover and Premium Fuel Line Antifreeze

ISO-HEET is a premium gas line manufactured by Gold Eagle. Cummins diesel engine antifreeze absorbs up to five times the amount of water as standard gas dryers. It is suitable for year-round usage in diesel and 2/3 cycle gasoline cars.

Due to the fact that quality control methods have prevented the use of potentially hazardous substances, your children can enjoy this product without anxiety.

Additionally, this Cummins diesel coolant can be used to fill up below freezing temperatures or while absorbing water from diesel fuel or gasoline. This preventative procedure will ensure the smooth operation of your engine.

In a 12-ounce jar, this Cummins antifreeze coolant is simple to pour. Due to its exceptional quality, it is one of the best antifreeze for RV Cummins diesel engines.

Ensure that once you are done filling the tank with fuel or before, screw off the ruptured seal on the diesel truck antifreeze capsules and pour the entire contents into the tank. This bottle has a capacity of 20 gallons of fuel.

To keep this finest auto coolant’s injectors clean, use it with each winter fill-up and every 5,000 miles in the summer. It will eliminate water and humidity in warm, humid conditions.

The Gold Eagle 28202/HA55360 12oz Iso Heet Fuel System with Anti-Freeze dryers removes water from gasoline and diesel fuels. This Cummins coolant accelerates startup and prevents stalling. Maintains the cleanliness of fuel systems.

This product is designed for use with compact vehicles, motorcycles, snowmobiles, and diesel-powered vehicles.

Highlighted Features:

• Iso Heet eliminates the need for additional natural gas or diesel fuel in cold weather to avoid corrosion or rust.
• Because no dangerous substances have been used, you may feel confident offering this product to your children.
• Packaged in a 12 oz. container with a twist-off cap that allows for piercing the seal.
• Eliminates moisture and condensation in humid, warm conditions.

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4. Zerex G05 Phosphate Free Antifreeze

All sections of the engine are protected by this substance, regardless of the season. For Cummins Diesel owners, this is an excellent option.

Engine compatibility is not an issue with this Cummins antifreeze for diesel engines because it is compatible with other top brands. A diesel or gasoline engine can use this ethylene glycol-based fluid.

Protecting diesel engines from cavitation is an important goal of the new ZEREX G-05 coolant, which has corrosion protection and an anti-nitrite component. In addition, protects against hard water deposits using scale and deposit control chemicals.

Metals in cooling systems are protected from corrosion by European technology, which has a reduced silicate and phosphate content.

You can also get a blend of 50 per cent to 70 per cent with premium coolant brands by mixing it with them. High-quality defoamers like Zerex G05 won’t harm plastics, hoses, or the paint on your car. Instead, it ensures the safety of your motorhome.

A comprehensive anti-corrosion package has been demonstrated in ASTM testing. Protect modern engine components from freezing and boiling by diluting ZEREX G-05 with 50 per cent water.

Passenger cars, light trucks, and heavy-duty vehicles can benefit from the Valvoline ZEREX diesel coolant fluid, an ethylene-glycol-based product.

Highlighted Features:

• Ethanol-free, making it suitable for gasoline and diesel engines.
• It can be blended with quality brands of coolant to achieve a ratio of 50% to 70%.
• Non-corrosive, non-staining defoamer that is safe to use on plastics, hoses, and car finishes.
• A high-performance anti-corrosion package that protects the driver.
• The patented composition provides corrosion and cavitation resistance.

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5. Genuine Ford Fluid VC-7-B 

The coolant in this Motorcraft Coolant is ethylene glycol-based. Therefore, when utilizing Motorcraft instead of non-approved coolants in your Cummins Diesel, you must use a diluted correct Cummins coolant.

This all-year-round diesel engine coolant meets Ford engineers’ exacting criteria for antifreeze and anti-boil protection. However, non-authorized coolants may result in warranty-voiding repairs on Ford cars if they are recommended and approved by Ford Motor Company.

In order to utilize Motorcraft coolant in your Cummins Diesel, you must dilute it with the right coolant. In addition, maintaining a warranty on this extended life coolant requires the use of Ford Motor Company’s authorized parts and procedures.

Diesel coolant additives’ concentrated recipe lowers mixing time and simplifies the precise ratio of mixing with distilled water, offering premium corrosion protection for engine components such as radiators and pumps, for instance.

In addition to providing antifreeze protection, a 50/50 mixture of distilled water and water offers you protection against overheating at 265 degrees Fahrenheit.

Make sure to replace this product every 36 months or 36,000 miles under normal driving circumstances if you utilize this product instead of the WSS-M97B51-A1.

Your warranty may be cancelled if you mix engine coolant with other fluids. Make sure you’re using the proper thing. So, stock up on Motorcraft Antifreeze 50/50 mix and get ready for the cold weather!

Highlighted Features:

• Radiator and engine heat radiator at its finest.
• Mixing is simple and saves a lot of time compared to preparing your own coolant.
• Ethylene glycol-based coolant is a superb choice for both cooling and long-term protection because it meets Ford engineers’ criteria.
• Any extended-life coolant is compatible with this product (Ford, Lincoln, Mercury).
• For the greatest results, use a 1:1 (Coolant to distilled water) ratio.

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6. Triax All Fleet ELC Coolant

Whether you’re driving on or off-road, Triax can help with all of your truck engine cooling system needs.

When paired with Filgran Moly Filtrate, TRIAX FLEET ELF’s HOAT (Hybrid Organic Acid Technology) offers the finest protection for your wet sleeve and the cylinder liners.

Antifreeze designed for Caterpillar EC1 Cooling fluids provides superior corrosion protection and coolant qualities that prevent sludge from accumulating in the radiator core.

When it’s time to maintain or replace your radiator fuel with this long-lasting coolant, this feature set can be a genuine asset.

As a result of the high ingredient content in TRIAX FLEET ELF, this antifreeze may be used with ordinary household tap water.

This also prevents corrosion-inducing deposits from developing. With all of these advantages, Triax’s antifreeze for Cummins diesel engines is among the best on the market.

Supplemental Coolant Additives are not required for this product (SCA). The maximum drain cycle of this antifreeze is also its maximum performance. If necessary, apply chemically charged filters or additional additives.

With no amines, borates, or silicates, this product can be used in a wide range of fleet applications, including diesel and natural gas engines.

Superior to Caterpillar’s original equipment manufacturer’s specifications for EC-1 coolants. More than what is required in terms of protecting your equipment and cooling systems.

Highlighted Features:

• A full synthetic antifreeze that extends the drain intervals in heavy-duty and mixed fleet applications is what this product is all about.
• New generation OAT and Filgran Molyfiltrate provide superior protection for cylinder lining and wet sleeves.
• This product is designed to be used with tap water because it has a high concentration of additives.
• Using this product, you’ll keep sludge from accumulating in your radiator core.
• For years to come, your driving ability will be unaffected.

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7. Fleetguard CC2825 ES Compleat 

For heavy-duty diesel, gasoline, and natural gas engines, Fleetguard manufactures antifreeze products. Cast iron, brass, aluminium, copper, and solder are all well-protected against line pitting and corrosion with Fleetguard ES Compleat, a fully formatted long-life coolant.

Antifreeze from Fleetguard features a dual borate formulation. Phosphorus and nitrate are not present in this product, which has a low silicate composition. Using this coolant, experts recommend that customers test their engines after they’ve traveled 250000 kilometres or 4000 hours or once a year.

A one-gallon container of this antifreeze often lasts for a million miles. Ethylene Glycol of the highest quality is used in this fluid to increase cooling system performance and water pump lifespan.

Highlighted Features:

• The best possible defense against corrosion caused by cavitation.
• Improved thermal conductivity.
• Suitable for gaskets, electrometers, and other nonmetallic components in the engine..”
• Mix easily with water from the tap.
• At 50/50 premix and 60/40 premix, freeze protection is provided up to –26°F and -60°F, respectively.

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Conclusion

If you are looking for the best antifreeze for RV Cumming diesel, look no further. The list above will give you a variety of mechanically superior fluids.

They all contain a balanced formulation of anti-corrosion and anti-cavitation chemicals and have been demonstrated to be beneficial to your engine. Simply choose the correct one and safeguard your engine from excessive wear or rigid expansion.