An antifreeze or coolant is crucial for the proper functioning of your engine. This fluid ensures that heat is being properly dissipated from your engine and prevents it from overheating. Considering how much power your truck’s engine can generate, it is very important to make sure that it always has a healthy supply of coolant to keep it in proper shape. If you don’t do that, your engine’s performance and lifeline will can be seriously compromised. If you are a GMC Sierra looking to make sure that your truck’s engine keeps it cool, you have come to the right place. The GMC Sierra is a line of trucks manufactured by GMC that shares a lot of features with the more popular Chevrolet Silverado. While the Silverado is the more affordable of the two, the Sierra comes with more luxurious and fancy features. As part of our series on the best aftermarket parts for the Sierra, we bring you the 10 best Antifreeze Coolants for GMC Sierra. Do ensure that the product you picked is compatible with your model, though. Keep scrolling to see what we picked out!
10. PEAK PXAB53 Antifreeze Coolant
Starting off the list, we have the PEAK PXAB53 Antifreeze Coolant for the GMC Sierra. This antifreeze coolant fluid has been manufactured in the United States and has a great track record of keeping engines cool and in good working order even after a prolonged period of use.
Available here.
9. P-restone Original Extended Life 50/50 Prediluted Antifreeze/Coolant
Next up, we have the P-restone Original Extended Life 50/50 Prediluted Antifreeze/Coolant for the GMC Sierra. This antifreeze coolant for your truck includes patented P-restone CorGuard Technology, that protects against rust and corrosion of all cooling system metals, including aluminum to ensure that your engine always keeps it cool.
Available here.
8. BMW 82141467704 Coolant / Antifreeze
Eighth on this list is the BMW 82141467704 Coolant / Antifreeze for the GMC Sierra. BMW is a company that needs no introduction, and the coolant manufactured by BMW shouldn’t need one either. This is a genuine BMW product and German engineering is something that you can always put your faith in when it comes to vehicles. Not recommended to mix with other coolants.
Available here.
7. Valvoline Multi-Vehicle 50/50 Prediluted Ready-to-Use Antifreeze/Coolant
Seventh on this list is the Valvoline Multi-Vehicle 50/50 Prediluted Ready-to-Use Antifreeze/Coolant for the GMC Sierra. This coolant by Valvoline contain Alugard Plus, a special additive that allows these chemistries to work together to provide maximum protection. It is well-suited to lubricating the gaskets and seals of your engine and is compatible with engines from all makes and models.
Available here.
6. Mopar 10 Year/150,000 Mile Coolant 50/50 Premixed
Next, we have the Mopar 10 Year/150,000 Mile Coolant 50/50 Premixed for the GMC Sierra. This is another good-quality antifreeze coolant by Mopar, which also happens to be the automotive parts and accessories division of Chrysler, which contains a bittering agent and guarantees 10 years or 150,000 miles of use. That is a lot of miles of coolness if you ask us.
Available here.
5. Zerex DEX-COOL Organic Acid Technology Antifreeze/Coolant 1 GA
Next, we have the Zerex DEX-COOL Organic Acid Technology Antifreeze/Coolant 1 GA for the GMC Sierra. This antifreeze coolant by Valvoline is a patented carboxylate formulation with a service life of up to five years or 150,000 miles and protects modern engine components from winter freezing and summer boiling.
Available here.
4. Shell Rotella ELC Nitrite Free Antifreeze/Coolant
Fourth on this list, we have the Shell Rotella ELC Nitrite Free Antifreeze/Coolant for the GMC Sierra. This antifreeze coolant is manufactured by Shell and provides excellent protection against pitting, corrosion and erosion even on hard to protect metals like aluminum. The amount of maintenance required is also minimal.
Available here.
3. Mishimoto Liquid Chill Synthetic Engine Coolant
The Mishimoto Liquid Chill Synthetic Engine Coolant for the GMC Sierra takes third-place on our list. This engine coolant ensures that your engine’s temperature always remains in the desired temperature range of 265°F to -26°F. This allows it to reduce engine wear and inhibit corrosion and keep the radiator of your engine safe and clean.
Available here.
2. Zerex Original Green Antifreeze/Coolant 1
In second place, we have the Zerex Original Green Antifreeze/Coolant 1 for the GMC Sierra. Valvoline manufacturers various different versions of its antifreeze coolant and the Original Green is another one of these. It contains a patented organic acid corrosion inhibitor package to provide extended engine protection against rust and corrosion.
Available here.
1. General Motors ACDelco DEX-Cool Coolant Antifreeze
And finally, we have the ACDelco DEX-Cool Coolant Antifreeze – 12346290 for the GMC Sierra. This is an OEM compatible coolant manufactured by ACDelco which is suitable for engines from various different manufacturers, the Sierra included. It should keep your engine safe and cool when you need it to.
Available here.
So that rounds up our list of the 10 best Antifreeze Coolants for GMC Sierra. We hope that it helped you in making a choice for yourself. Stay tuned for more.