Fuel is (not?) cheaper than engines

[Canuck]

In his newest book, Mike Busch takes on an old pilots' tale:

Advocates of very rich mixtures will tell you that "fuel is cheaper than engines," but don't be so sure. Assuming avgas costs $5/gallon, using 25% more fuel in a 300 horsepower engine can cost more than $33,000 over the engine's TBO, and that's enough to replace a whole bunch of cylinders.

(Of course, his main argument is that flying LOP, if your engine permits, doesn't force you to choose.)

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[Tweety]

 

[NorthernAviation]

 

[Jesse Saint]

 

[Orest @ CYFD]

 

[EchoDelta]

 

[NorthernAviation]

 

[Orest @ CYFD]

 

[EchoDelta]

 

[hindsight2020]