US and the Philippines uses US measurements.
Gallons (UK): A British imperial capacity measure (liquid or dry) equal to 4 quarts or 4.545 liters.
Gallons (US): United States liquid unit equal to 4 quarts or 3.785 liters.
but as you can see, they are not the same. You will have to adapt to the UK measurements or you will have some surprises...and I don't speak of the French feet (3cm more than the English one).
It just remind me a flight (in Canada) where the crew asked the ground mechanics for a fuel quantity in Kg and they filled the plane with the same quantity ... but in Lbs. The flight run out of fuel at mid distance and go on without any engine. The pilots were good enough to land safely on an old runway (where you had a campsite and a karting circuit).
You will say "why the pilots didn't notice?" just because their fuel gauge system was faulty, so they were obliged to rely on ground crew.
