[MetroMPG]

I'll add: there are probably signficant differences in electrical consumption between the engine in the test you read, and my 3-cyl weed whacker motor.

As well, the magazine was probably testing at peak hp loads; I wasn't anywhere near that.

So let's say I wouldn't try to claim that it would definitely work to that extent on every vehicle. And I generally don't recommend it without a lot of warnings anyway