Which Fuel Additive Brand Wins?
This head-to-head test of 3 fuel additive options has the measured results for each. See how they ranked and watch the full test video.
K100
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The measured results
Every number below is read straight from the test. Products are listed in the order they finished.
Phase separation test
- 1K100
experienced phase separation despite label claim of preventing it; the water and ethanol line sat a little higher than the control, indicating good mixing with the ethanol and water, but it still did not keep phase separation from occurring
- 2Star Tron
the separation line matched the water and gasoline only control container, indicating Star Tron mixed with the gasoline but did not separate out with the water and ethanol any better than plain water; explicitly stated it did not prevent phase separation
- 3ISO-HEET
the isopropyl alcohol, water, and ethanol all mixed together and separated out from the gasoline
Ice formation prevention (pre-mixed, frozen 24 hr)
- 1K100
ice formed inside the fuel, so it did not prevent ice from forming
- 2Star Tron
ice formed inside the container
- 3ISO-HEET
no ice formed, the only one of the three products to succeed at this test
Ice melting test (already iced, refrozen 24 hr, checked after 24 hr)
- 1K100
a lot of ice was left in the container
- 2Star Tron
ice remained in the bottom of the container
- 3ISO-HEET
ice remained in the container
All measurements (5 more)+
Massive dose phase separation retest (4 oz K100, 64 times recommended dose, 16 oz gasoline, 1 oz water)
- 1K100
still had phase separation even with the massive dose
- 2Star Tronnot tested
- 3ISO-HEETnot tested
Engine test (running generator, water contaminated K100 treated fuel)
- 1K100
not good enough to keep the engine going
- 2Star Tronnot tested
- 3ISO-HEETnot tested
Massive dose phase separation retest (enough Star Tron to treat 12 gallons)
- 2Star Tron
did absolutely nothing, still had phase separation
- 1K100not tested
- 3ISO-HEETnot tested
Engine test (running generator, water contaminated Star Tron treated fuel)
- 2Star Tron
engine stalled quickly once the treated water contaminated fuel was added
- 1K100not tested
- 3ISO-HEETnot tested
Engine test (running generator, water contaminated ISO-HEET treated fuel)
- 3ISO-HEET
did not do the job either, engine would not run well without heavy choke
- 1K100not tested
- 2Star Tronnot tested
How it was tested
- phase separation test (water plus gasoline plus additive, mixed and observed for a gasoline layer versus ethanol water layer)
- ice formation prevention test (additive pre-mixed with fuel and water, frozen 24 hours)
- massive overdose phase separation retest (far above label dose)
- ice melting test (fuel already frozen with water contamination, additive added, refrozen and checked after 24 hours)
- running generator engine test with water contaminated, additive treated fuel
“So, obviously these products are not very effective when it comes to treating water.”
Data notes and caveats
No winner: all three products failed the core claims tested (preventing phase separation, melting existing ice, letting the engine run normally on treated water contaminated fuel); the narrator's closing verdict is that none of the three are effective for treating water in fuel. ISO-HEET was the sole product to succeed at one sub-test (preventing ice from forming in the pre-mixed freezer test). The title's framing question, whether K100 can make water burn, is set up early in the transcript (K100 claims on the packaging it can make water burn) but no spoken result of that specific demonstration appears anywhere later in the transcript, so it was likely shown on screen only; logged to data/onscreen-only.txt.
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