Does the Cessna POH state the fuel consumption in Imperial or US Gallons? I'm planning a trip in a Cessna 182T and was calculating fuel requirements and started wondering. I have always assumed that fuel consumption is in US Gallons (or 3.785 litres) but I can't find a section in the Pilot's Operating Handbook (POH) that really confirms this. The fuel tank capacity is expressed in USG so I reckon it's close to assume that this implies that GPH is US gallons per hour. 

There is a Imp. Gallon to Liter and Imp Gallon to US Gallon conversion table in the POH, when do we need Imp. Gallons?

Any comments, did I miss something?
The plane was certified with US Gallons. Use those for fuel consumption.

The conversion tables are there in case your FBO's fuel pump is calibrated in L or Imp Gal.