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Old 12-15-2007, 05:12 PM   #13 (permalink)
MetroMPG
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Join Date: Nov 2007
Location: 1000 Islands, Ontario, Canada
Posts: 22,513

Blackfly - '98 Geo Metro
Team Metro
Last 3: 70.09 mpg (US)

MPGiata - '90 Mazda Miata
90 day: 52.71 mpg (US)

Even Fancier Metro - '14 Mitsubishi Mirage top spec
90 day: 70.75 mpg (US)

Appliance car - '14 Mitsubishi Mirage ES (base)
90 day: 60.16 mpg (US)
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I'm going to have to chime in on the side of questioning his "test" (and I use the term loosely). The fact that he would use this approach ... and then make claims from it should raise all kinds of red flags.

Another red flag is his claim (on his YouTube bio) that a significant portion unburned fuel escapes in the exhaust and is burned in the catalytic converter, which is contradicted by an expert:

Quote:
In fact, any modern engine in good condition and at normal operating temperature emits only about 1 - 2% of the input fuel as unburnt hydrocarbons, even before passing through the catalyst. I have studied test data for literally hundreds of engines over the past 10 years and this is absolutely consistant for all engine types. - (source)
And a HUGE(!) red flag can be found in the YouTube vid, where he documents his "experiment" getting him 48 mpg on the highway.... For crying out loud, he was drafting a full-size van!

Houston, we have a credibility problem!
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