Excellent, well produced and what a guy.
The PRU XI Spitfires had wing leading edge tanks and also a bulged cowling under the propellor to cover an enlarged 14.5 gallon oil tank, the Merlin 60 used a fair bit of oil on a long flight to Berlin and back, typically 11 litres an hour.
The Merlin 60 was a 2 speed, 2 stage intercooled engine with a fuel burn of 600L per hour. at full throttle.
Typically they cruised at 395 mph at 32,000 ft.
470 were built and used by both RAF and USAF.