Engine Fuel Substitute: The Test Results
A head-to-head test of 1 engine fuel substitute options with the measured results for each. See how they ranked and watch the full test video.
WD-40
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The measured results
Every number below is read straight from the test. Scroll sideways to see all measurements. Products are listed in the order they finished.
| Product | Power/running test (engine brake) | Compression test | Engine knocking |
|---|---|---|---|
| 1WD-40 | the meta chapters describe the engine as very low on power while running on the WD-40 blend, with excessive smoke that forced the narrator to move testing outside; smoke cleared up after switching back to gasoline afterward | per the meta chapters, not narrated aloud in the available transcript: 98 PSI before the WD-40 test, 95 PSI after, a 3 PSI decrease | the meta chapters note engine knocking was observed but attribute it to a mechanical issue with the test engine rather than to the WD-40 itself; not narrated aloud in the available transcript |
How it was tested
- engine running/power test on a WD-40 and gasoline blend using an engine brake to gauge power
- compression test before and after (per meta chapters only)
- visual/smoke observation while running on the blend
Data notes and caveats
Single-product myth test of whether a small gas engine can run on WD-40, not a head-to-head comparison, so isHeadToHead is false and there is no winner, runnerUp, or budgetPick. Confidence is medium rather than high specifically because of the description-vs-transcript conflict over the fuel mix (100 percent WD-40 per the description title/summary versus an explicit 50/50 WD-40/gasoline blend per the spoken transcript); readers relying on the title alone would get a different picture of what was actually tested than what the transcript describes. The compression test PSI figures and the engine-knocking-is-mechanical note come only from meta chapter titles, not from narrated speech in the available transcript.
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