The 7 Best Diesel Coolant Additives (2022 reviews)

The Ford Diesel Coolant Additive is capable of outshining several other additives featured in this list in overall features. Not everyone likes to purchase coolant for their daily purpose, but the ford diesel coolant additive would be an anomoly. In conclusion, with a 4.8 rating and more than 5408 buyers, the ford diesel coolant additive stands as the best choice.

One customer says - "Very important to check your sca periodically. ". They strongly agree that this is an additive only to extend the life of old coolant.

Why We Like This:

One of the newcomers and featured product.
Good investment for the long term.

Best For Leaks: K-Seal Diesel Coolant Additive

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We would, of course, be remiss if we didn't mention K-Seal Diesel Coolant Additive for daily purpose. The k-seal diesel coolant additive is trusted by millions of customers worldwide, and is the only coolant leak repair fluid carried by aa, the uk’s largest roadside repair company. Make sure this fits by entering your model number. Further, this is good for water pump casing, is good for leaks in the radiator and it is great for cylinder heads.

The additive is automotive and has an amazing design. Above all, the k-seal diesel coolant additive is great for engine blocks and it is perfect for cracks in the radiator.

Most buyers find that the additive is a good idea to use it anyway. In addition, a few also found that the coolant is so simple and easy to use. Further, they strongly agree that the road trip was saved by k - seal coolant leak repair. Therefore, most customers agree that the additive is functionally comfortable and no one questions it.

Customers say that getting a diesel coolant additive, along with coolant is useful.

Top Customer Quotes:

The coolant / k - seal mixture instantly clogged up and broke the pump.
This works well and it is made for easy installation.
Coolant leaks do result in costly repair bills.
Water pump leak, where leaks develop under stress or abrasion and coolant leaks out.

Best For Engine Blocks: Kalimex Ltd Diesel Coolant Additive

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Best part: Kalimex Ltd Diesel Coolant Additive costs comparatively low and it is available to ship in 24 hours. The Kalimex ltd diesel coolant additive can buy just one bottle of k-seal ultimate. It is enough to fix blown head gaskets and cracked heads in cars, suvs and small trucks. The secret behind k-seals ' ability to repair a coolant leak is down to its contents. And, this is used for engine blocks and driving around.

Lastly, the kalimex ltd diesel coolantadditive is leaking from the system, either externally or internally across the head to the cylinders, then k-seal will follow it through the hole or crack and try to fix the leak.

Most customers find that the additive is imperative that you shake it vigorously before pouring it into your cooling system. Moreover, a few strongly agree that the additive will fix agushing head gasket or block leak. And, they also found that the additive is about 1\2 gallon every 3-4 months. Overall, at the price, they believe that they got a steal of a deal with it.

Customers discovered that getting a diesel coolant additive and heavy duty truck coolant, along with coolant is useful.

Top Customer Quotes:

Manufacturer says: our unique formula works with all water-cooled engines.
This does often work though and also does not burn oil either.
A permanent repair, guaranteed for the lifetime of the engine.
Water pump leak, where leaks develop under stress or abrasion and coolant leaks out.

Best For Fast Delivery: Motorcraft Diesel Coolant Additive

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The Motorcraft Diesel Coolant Additive should be able to handle its purpose and duties with ease. The motorcraft dieselcoolant additive is designed to replace additives depleted between coolant change-outs. Make sure this fits by entering your model number. This product contains less than 10 % ethylene glycol or contains a bittering agent. Lastly, the motorcraft diesel coolant additive is good for fast delivery and it runs the engine.

One customer says - "Use test strips (fleetguard coolant analysis test kit cc2602a) to check your coolant before you add. ". Almost all customers found that the coolant is good for reconditioning antifreeze. Overall, the tone of buyers is very positive and we believe that the additive suits the purpose.

Why We Like This:

Now dyed yellow to eliminate engine coolant color change when mixing.
Good brand reputation.

Best With Great Stuff: Mishimoto Diesel Coolant Additive

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We would, of course, be remiss if we didn't mention Mishimoto Diesel Coolant Additive for regular usage. The mishimoto diesel coolant additive is safe for use with all alloys and is formulated with a corrosion inhibitor, which not only prevents future corrosion but also reduces pre-existing buildup. Mishimoto liquid chill, the new performance radiator additive, will help cool your car up to 30 degrees over regular coolant. In addition, it has produced a line of upgrades to fit nearly any application.

Finally, the mishimoto dieselcoolant additive is compatible with all coolant types and does not require mixing.

Almost all buyers quickly discovered that the additive does not work as well as far as cooling goes, fifty percent anti and water works better, for cooling and heating. Further, a few also found that the coolant makes quality products and it shows with this great additive.

Customers discovered that getting a coolants for diesel engine, with this additive made their life much easier.

Why We Like This:

decreases high coolant temperatures and does not require mixing.
Formulated to prevent future corrosion and reduce existing build-up.
Net weight: 4 fl oz. / note: non-corrosive, 100% recyclable.

Best For Corrosion Protection: Shell Rotella T Diesel Coolant Additive

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Shell Rotella T offers a variety of coolants for personal choice and yet maintains quality in all the variants. The Shell Rotella T Diesel Coolant Additive protects metals against all forms of corrosion 3. Manufacturer says: We understand consumers' challenges and have designed a product portfolio to help make maintenance needs easier. Moreover, it is designed to go 600, 000 on-highway miles (and beyond with proper monitoring) and provide an overall reduction in cooling system maintenance.

Most importantly, the shell rotella t diesel coolantadditive works well and it is used for corrosion protection.

One customer says - "You will never truly know how using these high quality fluids will help your truck or car, but the peace of mind using them helps ease the mind. ". A few strongly agree that this coolant, by the shell oil, is long lasting and does n't require additives until after the 2nd year. Therefore, most buyers call the coolant functionally comfort, and no one questions it.

Why We Like This:

Improved water pump seal life due to low dissolved solid levels.
Excellent pitting protection for wet sleeve cylinder liners.
No regular supplemental coolant additives (sca's) required.

Best Coolant: Evans Diesel Coolant Additive

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We know from years of feedback from readers, amazon sellers, and family and friends what most people want in a convenient and appropriate coolant. The Evans Diesel Coolant Additive is exactly that - it's a simple coolant that hits all the right notes. The evans diesel coolant additive is recommended that the system be flushed with evans prep fluid, ec42001, prior to installing any waterless coolant. During installation, ensure that all of the old water-based coolant and water is removed before installing this product. Moreover, it comes with a heavy duty/industrial waterless coolant, This pressure is dramatically reduced, extending the cooling system's operating life and preventing breakdowns.

Above all, the evans diesel coolant additive is especially effective in severe-duty applications where water-based coolants are challenged.

"This will save your engine great stuff. " - says, one customer. In conclusion, buyers found this to be one of the best additives for daily purposes.

Few customers bought diesel coolant additive, along with the coolant.

Why We Like This:

This is above that limit, the coolant will perform no better than water-based antifreeze.
This reduces maintenance costs and it is very corrosive and a good conductor of electricity.
Lot of satisfied buyers.