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Best deal: $6.17 per gallon (69.2% below the median) — Peak Auto Sep003 Sierra® Antifreeze/coolant, Gallon

Price range: $6.17 – $82.40 per gallon across 58 offers. Median sits at $19.99.

Top brands showing: Peak Oet, Zerex Asian, Prestone Max.

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Peak Auto Sep003 Sierra® Antifreeze/coolant, Gallon

Peak Auto Sep003 Sierra® Antifreeze/coolant, Gallon

(as of 08/18/2026 08:58 EST)

$6.17 / gallon
Total: $37.00
Prime: ❌
RV & Marine Splash 619526 RV/Marine Antifreeze, 6 gal, Pink (RV/Marine Antifreeze)

RV & Marine Splash 619526 RV/Marine Antifreeze, 6 gal, Pink (RV/Marine Antifreeze)

(as of 08/18/2026 08:58 EST)

$8.83 / gallon
Total: $52.95
Prime: ❌
SPLASH RV & Marine Antifreeze -50°F Burst Protection, 1 Gallon (1 Pack)

SPLASH RV & Marine Antifreeze -50°F Burst Protection, 1 Gallon (1 Pack)

(as of 08/18/2026 08:58 EST)

$13.85 / gallon
Total: $13.85
Prime: ❌
Shellzone 50/50 Pre-Diluted Antifreeze + Coolant (1 Gallon)

Shellzone 50/50 Pre-Diluted Antifreeze + Coolant (1 Gallon)

(as of 08/18/2026 08:58 EST)

$14.20 / gallon
Total: $14.20
Prime: ✅
Zerex American Vehicle 50/50 Ready-to-Use Antifreeze Coolant 1 Gallon

Zerex American Vehicle 50/50 Ready-to-Use Antifreeze Coolant 1 Gallon

(as of 08/18/2026 08:58 EST)

$16.45 / gallon
Total: $16.45
Prime: ✅
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