Iso-HEET Fuel-Line Antifreeze and Injector Cleaner 12 fl. oz - Premium Water Absorbing Formula
Iso-HEET Fuel-Line Antifreeze and Injector Cleaner 12 fl. oz - Premium Water Absorbing Formula
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Iso-HEET Fuel-Line Antifreeze and Injector Cleaner 12 fl. oz - Premium Water Absorbing Formula

Iso-HEET Fuel-Line Antifreeze and Injector Cleaner 12 fl. oz - Premium Water Absorbing FormulaIso HEET Water Remover Injector Cleaner 12 fl oz2 pack Iso HEET Water Remover Injector Cleaner 12 fl oz4 pack Iso HEET Water Remover Injector Cleaner 12 fl oz
Multipack Quantity:1

Key item features

  • Premium Antifreeze: Iso-HEET is the leading brand of premium gas-line antifreeze, recognized for its effectiveness in fuel system maintenance.
  • Superior Absorption: This formula absorbs five times more water than standard gas dryers, efficiently removing moisture from the fuel system.
  • Corrosion Prevention: It actively prevents rust and corrosion within the fuel system, contributing to engine longevity.
  • Engine Compatibility: The solution is suitable for use with all engine types, ensuring broad applicability.
  • Cold Weather Performance: It maintains clear fuel lines during cold winter conditions, preventing freezing and blockages.
  • Enhanced Performance: The product improves overall vehicle performance by ensuring a clean and moisture-free fuel system.
  • Convenient Size: Packaged in a handy 12 fl. oz. bottle, it offers ease of use and application.
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Customer ratings & reviews

4.8 out of 5 stars
stars690 ratings218 reviews
How item rating is calculated
  1. 5 stars85% (585)
  2. 4 stars10% (68)
  3. 3 stars3% (21)
  4. 2 stars1% (5)
  5. 1 star2% (11)

Reviews summary

Pros

  • : Helps engines start and run correctly during winter.
  • : Offers good value at this cost.
  • : Removes water from gas tanks to prevent rust and corrosion.
  • : Prevents water from freezing in engine lines and improves operation.
  • : Operates smoothly in freezing temperatures.
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Showing 1-3 of 218 reviews

Mar 9, 2026
Jackie
Top Reviewer
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Multipack quantity: 1
5 out of 5 stars review

Verified Purchase

Ever Had a Frozen Fuel Line?

With this past winter temperatures, my husband absolutely made sure to order this HEET for our vehicles. We have spent plenty of time in the long-ago past, trying to blow dry gas lines or wrapping them in towels and tape to try to thaw them. A mechanic recommended this HEET to keep our lines clear and as a bonus, it helps keep the fuel injectors clean. We've used it for years now, when the temps warrant it. We've never had a frozen fuel line since.

Helpful?52IQYVPSEB2S16879747
Mar 22, 2026
Tracy
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Multipack quantity: 1
5 out of 5 stars review

Verified Purchase

saved my car from bad fuel

This stuff saved my cars life! i had gotten watered down fuel at a gas station and this stuff prevented any further damange to my vehicle. just put the amount the directions say and then drive it as normal to make sure it mixes well with your fuel. after a few days of driving the car is back to sounding normal and running properly. definatley have this stuff on hand because you will never know if you eve need it.

Helpful?52IQYVPSEB2S16879747
Nov 19, 2025
Buddy
Top Reviewer
Item details
Multipack quantity: 1
5 out of 5 stars review

Verified Purchase

Gets The Job Done!

I filed up my SUV one morning on the way to work. Everything was fine until I headed home that evening and noticed the hesitation and sputter at interstate speed. Sure enough the check engine light came on and I suspected it was water in the gas. Did a little research and found that water is heavier than gas and if you park for a while it will settle to the bottom of the tank. This explains why the sputter happened later rather than sooner. ISO HEET was the %231 recommended cure. I tried it and sure enough the sputtering stopped and after several miles the check engine light went off. Very inexpensive fix. Nice! Probably wouldn't work with a ton of water in the fuel. But if you just filled up and the sputtering starts, this would be the very first thing I'd try…

Helpful?52IQYVPSEB2S16879747