Which Motor Oil Brand Wins?
A head-to-head test of 2 motor oil options with the measured results for each. See how they ranked and watch the full test video.
Mobil 1 Extended Performance
Price shown in test: $9.47 per quart
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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 | Guaranteed protection interval | Certifications | Mobil 1 star rating | Flash point | Viscosity | Pour point | Lubricity test wear scar | Cold flow test, first run (24 hours at -15 F) | Evaporative heat loss test (about 375 to 400 F for 2 hours) | Cold flow retest, new vs heat-exposed oil | Shelf life |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 1Mobil 1 Extended Performance$9.47 per quart | 15,000 mi | Dexos 1, API SN Plus | two stars for preventing breakdown and extending life, protecting against engine wear, and combating sludge and deposits; three stars for protecting in high engine temperatures | 392 F | 57.2 cSt at 40 C, 10.2 cSt at 100 C | -42 C (-44 F) | 6.01 mm, smaller and better than the jet oil's 6.29 mm scar; this figure comes only from a video chapter title, it is not spoken aloud in the narration | beaten by the jet oil by over 8 inches | lost about 2 g of weight, starting weight 407 g, ending weight 405 g | the uncooked (new) motor oil beat the cooked (heat-exposed) motor oil by around half an inch, but the uncooked motor oil was still beaten by the uncooked jet oil by over 8 inches | not tested |
| 2Mobil 1 Jet Oil | not tested | not tested | not tested | over 246 C (475 F) | 27.6 cSt at 40 C, 5.1 cSt at 100 C | -74 F | 6.29 mm, larger and worse than the motor oil's 6.01 mm scar; this figure comes only from a video chapter title, it is not spoken aloud in the narration | beat the motor oil by over 8 inches, described as unfazed by the cold | lost only 0.52 g of weight, starting weight 416.92 g, ending weight 416.4 g, and stayed visibly clear | the new (uncooked) jet oil beat the heat-exposed (cooked) jet oil by less than an inch, and beat the uncooked motor oil by over 8 inches | 10 years; manufactured March 2018, good until March 2028 |
How it was tested
- safety data sheet comparison: flash point, viscosity, pour point
- lubricity/wear test measuring bearing scar size
- cold temperature oil flow test after 24 hours at -15 F
- evaporative heat loss test, about 375 to 400 F for 2 hours (Noack-style)
- cold flow retest comparing new oil to heat-exposed (cooked) oil
Data notes and caveats
Framed explicitly as a fun, not-for-real-use comparison; the reviewer repeatedly warns viewers not to use jet oil in a vehicle engine. No single overall winner is declared: the closing summary gives a clean per-test split verdict instead ('it did very good on the lubricity test, beating the jet oil, but that's where the motor oil ended its superior performance... the jet oil did very good in the evaporative test... the cold oil flow test was very impressive as well, totally dominated the competition'). Motor oil wins the lubricity/wear test; jet oil wins the cold flow test and the evaporative heat loss test. The lubricity wear-scar numbers (6.01 mm for Mobil 1 motor oil, 6.29 mm for jet oil) exist only in the video's chapter titles and are never spoken aloud in the transcript narration.