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

(4 pack) Iso-HEET Fuel-Line Antifreeze and Injector Cleaner 12 fl. oz - Premium Water Absorbing Formula4 pack Iso HEET Water Remover Injector Cleaner 12 fl oz2 pack Iso HEET Water Remover Injector Cleaner 12 fl ozIso HEET Water Remover Injector Cleaner 12 fl oz
Pack Size:4 Pack

Key item features

  • Leading Antifreeze: Iso-HEET is recognized as the number one selling brand for premium gas-line antifreeze.
  • Superior Absorption: This formula absorbs five times more water compared to regular gas dryers.
  • System Protection: It actively removes water from the fuel system, preventing rust and corrosion.
  • Engine Compatibility: The solution works effectively with all engine types.
  • Winter Performance: Keeps fuel lines clear during cold winter conditions.
  • Enhanced Performance: Improves vehicle performance and offers long-term engine protection from moisture and impurities.
  • Convenient Size: Each bottle contains 12 fluid ounces, making it easy to use.
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Current price is $10.80$2.70/ea
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This item includes:

  • 4-pack of Iso-HEET Fuel-Line Antifreeze and Injector Cleaner 12 fl. oz - Premium Water Absorbing Formula
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Customer ratings & reviews

4.8 out of 5 stars
stars677 ratings215 reviews
How item rating is calculated
  1. 5 stars85% (574)
  2. 4 stars10% (67)
  3. 3 stars3% (20)
  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 215 reviews

Nov 22, 2025
haley
Top Reviewer
Item details
Multipack quantity: 1
5 out of 5 stars review

Verified Purchase

It works

This definitely works. I got my sisters car after she passed away and the car didn't have a gas cap. We had a storm come through and the door of the tank ended up opening. I had just replaced the fuel pump last year and I thought for sure I messed it up again. I started the car a few days later just for it to cut back off. I asked around to a few people I know who works on cars and one of them told me about this. I really didn't think it would help. I poured it in the tank and later that day the car started back up. May not be the same story for everyone but it definitely worked for me.

Helpful?52IQYVPSEB2S17907412500
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?52IQYVPSEB2S17907412500
Mar 22, 2026
Tracy
Item details
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?52IQYVPSEB2S17907412500