No engine enelayis gauges just what the aircraft has feel smell and real knowledge.
No computers to tell you what a wrong.
That there's yr. problem. Back when I were a lad, Motor-cars had a toothed ring in the centre of the steering wheel. engaging with this ring were levers for Advance-Retard, Mixture, and throttle.
The driver juggled these whilst usinga non-syncromesh gearbox,mechanical brakes, indifferent roads..... 20-25 MPG could be obtained by a good driver cruising around 40 mph.
Today, s driver has NO controls for the engine,other than "cruise" expects to set that to 80 mph and return at least 40 mpg.
These here new-fangled computers, electronic sensors, lean-burn injection technology all have their part to play in this revolution.
The days of pressing your ear to a screwdriver held against the "cly" block and tuning carbs by ear...
ARE LONG GONE. 21st. century engines need 21st. century mechanics. not Otto Daimler wannabes.