Dan,

My first presumption would be maintenance. As anal as some of us might be about mechanical upkeep, aircraft are on a completely different planet.

Thanks. Brad.

Airplane engines are over engineered a lot compared to our transplanted automotive marine engines. Airplane engines, in most instances, dont turn near the RPM either.

General aviation piston engs are pretty low performance in the interest in reliability. Most of them only produce abt 1hp per every 2 cubic inches of eng displacement and max RPMs are around 2600. Plus they have dual ignition systems and they will run almost as good on one ign sys as they do on 2.

i own a pratt and whitney 4360cubic inch 28 cyl radial engine 56 spark plugs varible speed supercharged the carb is bigger than 2 topfuel injector hats or the big holly will drop straight thru its pretty wild the cam turns backwards at 1/6th or 1/8th crank speed 5/8 and 3/4 inch valve stems.....4000hp...........6-8 gallons per min fuel

that is one big hoss

Absolutely aircraft engines are built to run and run with zero issues
And use old school tech..

car engines taking a powder is pull over
for me boat engines taking a powder is really bad off shore
or even in middle of lake.

As an example, as per this thread, the questioning of what rocker stud to use and/or using a hard flat machine washer to raise the stud height would never 'fly'.

Very strict parameters of parts and design operated in within well defined parameters using good quality fuel.

Some of The WW2 fighter aircraft had massive superchargers with insane boost...over 30psi. They were using water/methanol injection as an emergency milotary power. They would get up to 3000hp out of them.

Some radial engines have been known to completely lose (come off) whole cylinders and just keep running.

aluminium heads are screwed onto steel cylinders the fire came from the 3 inch intake pipe now being open with 130 octane fuel under boost pressure a fast hot fire each engine had a 80 gallon water alcohol tank and 80 gal oil tank theres a pretty cool science in these old engines

not to derail.🤣
But modern deisel engines using methanol
Actually run cleaner. Dpf is cleaner, plus a power increase

dpf is just a filter for any soot,it adds no power.