Fuel consumption while idling engine to save house-battery life.

[MikeRuth]

Cheap meters may be able to handle 10A, but their leads won't.  Thick insulation over thin wires is normal for them.

I agree about the leads but they will handle that acceptably for 60 seconds or less. 

that's something none of the manuals if they come with one mentions. 

One of the bonuses of a clamp on type. You can monitor current as long as you need.