21 tests
Myths & Experiments
The what-if tests: fuel substitutes, oil myths, and shop-legend experiments settled with data.
Category leaderboard
Brands that won the most head-to-head tests in this category.
- 1Reduced speed plus increased tire pressure1 win
- 2Sweet crude oil1 win
- 3BestLine1 win
- 4ABS plastic1 win
- 5Walnut1 win
All myths & experiments tests
Myths & Experiments2026
Which Fuel Saving Devices Brand Wins?
Reduced speed plus increased tire pressure
See the resultsMyths & Experiments2021
Which Diesel Fuel Alternative Brand Wins?
5 products tested
See the resultsMyths & Experiments2020
Which Turpentine As Engine Fuel Additive Brand Wins?
2 products tested
See the resultsMyths & ExperimentsMyth
Emergency Gasoline Substitutes: The Test Results
1 products tested
See the resultsMyths & ExperimentsMyth
Nitrous Oxide Bicycle Engine Kit: The Test Results
1 products tested
See the resultsMyths & Experiments2018
Which Engine Oil Substitute Myth Test Brand Wins?
3 products tested
See the resultsMyths & Experiments2018
Which Bicycle Engine Kit Brand Wins?
2-stroke bike engine kit
See the resultsMyths & Experiments2018
Which Crude Oil As Diesel Engine Fuel Brand Wins?
Sweet crude oil
See the resultsMyths & Experiments2018
Which Shampoo As Engine Oil Substitute Brand Wins?
BestLine
See the resultsMyths & Experiments2018
Which 3d Printed Cylinder Head Material Brand Wins?
ABS plastic cylinder head
See the resultsMyths & Experiments2018
Which Crude Oil As Gasoline Substitute Brand Wins?
3 products tested
See the resultsMyths & Experiments2018
Which Wood Cylinder Head Brand Wins?
Walnut
See the resultsMyths & ExperimentsMyth
Engine Oil Substitutes: The Test Results
1 products tested
See the resultsMyths & ExperimentsMyth
Kerosene As Emergency Engine Fuel: The Test Results
1 products tested
See the resultsMyths & Experiments2018
Which Motor Oil Substitutes Brand Wins?
2 products tested
See the resultsMyths & ExperimentsMyth
Engine Fuel Substitute: The Test Results
1 products tested
See the resultsMyths & ExperimentsMyth
2-cycle Premix Fuel Run In A 4-cycle Engine: The Test Results
1 products tested
See the resultsMyths & ExperimentsMyth
Gas Vapor Fuel Economy Device: The Test Results
1 products tested
See the resultsMyths & Experiments2017
Which Mothballs In Fuel Brand Wins?
2 products tested
See the resultsMyths & ExperimentsMyth
Engine Lubrication Failure: The Test Results
0 products tested
See the resultsMyths & ExperimentsMyth
Fuel Contamination Myths: The Test Results
1 products tested
See the resultsOther categories
Engine Oil & Fluids53Fuel & Additives25Car Care & Detailing15Jump Starters & Car Power20Auto Parts & Repair16Power Tools37Power Tool Batteries7Hand Tools58Blades, Bits & Abrasives39Outdoor Power Equipment25Fasteners & Hardware7Adhesives, Glue & Tape19Shop Chemicals & Lubricants22Flashlights & Lighting6Batteries & Power Banks10Workwear & Safety Gear15Home Appliances25Home & Cleaning11Gadgets & Tech15