Gas Vapor Fuel Economy Device: The Test Results
This head-to-head test of 1 gas vapor fuel economy device options has the measured results for each. See how they ranked and watch the full test video.
DIY gas vapor canister
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The measured results
Every number below is read straight from the test. Products are listed in the order they finished.
All measurements (4 more)+
Initial run
- 1DIY gas vapor canister
the engine ran for about an hour and a half using nothing but fuel vapors, drawn through a canister setup instead of liquid fuel
Fuel appearance
- 1DIY gas vapor canister
the fuel's color seemed to change to more yellowish after the run, which the narrator speculates could be from oxygenation or air still trapped in the fuel from the bubbling action
Comparative test setup
- 1DIY gas vapor canister
engine run for 27.5 minutes on one pint of fuel through the vapor setup, then the same measured amount of fuel was set up to be run straight (liquid) through the engine to compare run time
Comparative test result
- 1DIY gas vapor canister
not stated numerically in the transcript; the narration ends with the overall verdict rather than a specific liquid-fuel runtime figure
How it was tested
- whether a small engine can run purely on fuel vapors drawn through a canister instead of liquid fuel
- comparative fuel economy: engine runtime on a measured one pint of fuel via the vapor setup versus the same measured amount run as straight liquid fuel
“I was really surprised though that I didn't get that much better fuel economy but as far as claims of saving four hundred to five hundred percent on the fuel I just don't see that happening.”
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