The Jetcat website states 350ml/min at full power for the P100. In comparison the Wren 100 is also shown at 350ml/min and the Merlin 100 is shown as 360 ml/min. Neither of the latter 2 are considered to be thirsty engines so, if the Jetcat specs are correct then it is ok. If I was a betting man I'd say that the P80 specs are not accurate and it is actually thirstier than Jetcat claim. My (very old) P80 was certainly not very fuel efficient.