Which Engine Oil Substitute Myth Test Brand Wins?
This head-to-head test of 3 engine oil substitute myth test options has the measured results for each. See how they ranked and watch the full test video.
Honey
Affiliate link. We may earn a commission at no extra cost to you.
The measured results
Every number below is read straight from the test. Products are listed in the order they finished.
All measurements (7 more)+
Rescue Attempt
- 2Marvel Mystery Oil
added to the honey-fouled crankcase in an attempt to free the locked engine; narrator frames this as 'a showdown between Marvel Mystery Oil and honey', engine run for about 2 to 3 minutes afterward
- 3Seafoam Deep Creep
sprayed on the cylinder wall and valves to help loosen the honey-fouled intake valve so it would close on its own again
- 1Honeynot tested
Cold Flow Test
- 1Honey
flow of honey below 31F in a freezer was compared against 10W-30 motor oil; the setup is described but no explicit result or winner is narrated for this sub-test
- 2Marvel Mystery Oilnot tested
- 3Seafoam Deep Creepnot tested
Lubricity Test
- 1Honey
wear scar (scoring) on the honey-lubricated bearing was about the same as on the 10W-30-lubricated bearing, described as suggesting honey might work quite well in the crankcase
- 2Marvel Mystery Oilnot tested
- 3Seafoam Deep Creepnot tested
Engine Run Test
- 1Honey
honey added to the crankcase in place of oil; the honey began literally boiling inside the crankcase from engine heat and the engine completely locked up
- 2Marvel Mystery Oilnot tested
- 3Seafoam Deep Creepnot tested
Breakaway Torque To Spin Locked Engine
- 1Honeyabout65.5 ft lbs
of torque needed to get the honey-locked engine to spin over
- 2Marvel Mystery Oilnot tested
- 3Seafoam Deep Creepnot tested
Post Rescue Compression Test
- 1Honey89 PSI
/ 6.1 Bar, per the meta chapter title only ('Compression test: 89 PSI / 6.1 Bar'), never spoken in the transcript narration and its point in the rescue timeline (before or after which step) is unclear from text alone
- 2Marvel Mystery Oilnot tested
- 3Seafoam Deep Creepnot tested
Final Outcome
- 1Honey
engine was eventually coaxed back into running for a couple of minutes after the crankcase was flushed with Marvel Mystery Oil and the cylinder wall and valves were sprayed with Seafoam Deep Creep, but the engine is described afterward as in bad condition with maybe one or two more videos of life left in it
- 2Marvel Mystery Oilnot tested
- 3Seafoam Deep Creepnot tested
How it was tested
- cold flow comparison below 31F versus 10W-30
- lubricity/wear-scar bearing test versus 10W-30
- engine run test with honey as crankcase oil
- breakaway torque required to free the locked engine
- post-rescue compression test
- engine rescue attempt with Marvel Mystery Oil and Seafoam Deep Creep
“Honey is definitely not a very good engine oil substitute. Please do not try this. This will definitely ruin an engine.”
Data notes and caveats
This is a myth/stunt test (honey as an engine oil substitute), not a competing-brand head-to-head, so isHeadToHead is false and no single product winner is declared; the clear finding is that honey fails catastrophically as engine oil, while Marvel Mystery Oil is described as having 'prevailed' over the honey specifically in the improvised rescue/flush attempt (not as a general oil comparison). The meta chapter 'Compression test: 89 PSI / 6.1 Bar' (126-175s) has no corresponding narration in the transcript at all, only a bare number in the chapter title with no stated before/after context; logged to data/onscreen-only.txt for video-frame recovery of the surrounding context. Cold-flow test result versus 10W-30 is set up in narration but its outcome is never stated.
More Myths & Experiments
Which Fuel Saving Devices Brand Wins?
Reduced speed plus increased tire pressure
See the results
Which Diesel Fuel Alternative Brand Wins?
5 products tested
See the results
Which Turpentine As Engine Fuel Additive Brand Wins?
2 products tested
See the results