Zerex G-05 Antifreeze/Coolant
Price history summary
We recorded no new price at major retailers (Amazon, Walmart, Best Buy, Target, The Home Depot and Lowes) in the last 90 days.
Range over the last 12 months: $88.39 (retailers/amazon, Apr 27, 2026) to $107.93 (retailers/amazon, Apr 11, 2026). Based on 9 recorded prices since Oct 15, 2025 for offers sold by these retailers themselves (not marketplace sellers). Summary as of Oct 12, 2026.
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Pros
- •Pre-mixed and ready to use, so no need to dilute or mix yourself.
- •Generally positive reviews mention effective cooling performance.
- •Zerex brand is well-known and trusted within the automotive industry.
- •The large case of 6 gallons offers good value for multiple uses or for a shop.
- •Users report ease of pouring and handling thanks to the gallon containers.
- •Good for maintaining optimal freeze and boil-over protection.
- •Suitable for a variety of vehicle makes and models, according to product specifications.
- •No mention of harmful additives, making it a safer choice for your cooling system.
- •Some reviewers mentioned long-lasting protection without the need for frequent top-ups.
- •Compatible with most antifreeze/coolant systems that require G-05 formulations.
Cons
- •Price point is relatively high at $107.95 for the case, which might be steep for some budgets.
- •A few reviews indicated difficulty finding the product in certain local stores.
- •Sealing the container tightly is important to prevent leaks, as noted by some users.
- •Limited information on performance in extreme conditions, so verification may be needed for specific climates.
- •Being ready-to-use, it might contain additional additives some users prefer to avoid.
Bottom Line
Based on multiple user reviews and the trusted Zerex brand, the G-05 Antifreeze/Coolant is a reliable and convenient choice for maintaining your vehicle’s cooling system. The 6-gallon case offers good value, though the higher price may be a consideration. It’s ideal for those seeking ease of use and proven performance, but if cost is a primary concern or a different formulation is needed, exploring other options may be beneficial.
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Discussion
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