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Challenger reusable oil filter

The most recent "Ask the A&Ps" podcast from AOPA discusses this reusable oil filter topic again, and surprisingly Mike comes to the conclusion that the Challenger/K&P filters are "good enough." There were not any real references to why he believes they are "good enough" and some of what he said I believe is mistaken - like the Challenger filters are aluminum and have the holes cut into them. I know my K&P is stainless wire mesh - not sure about the Challenger, but I read it's the same.

I have to admit I loved everything about the K&P except that it's a crappy filter. Otherwise, it's great! 🤣
 
I fly an RV 9A with a Titan IO 360 and am thinking of switching to the Challenger reusable oil filter, anyone have any thoughts? What about using the K&P automotive version? It's almost exactly the same thing but much cheaper?
Wix 51085 or Napa 1085 (for O-360) both inexpensive and MUCH better performance
 
The most recent "Ask the A&Ps" podcast from AOPA discusses this reusable oil filter topic again, and surprisingly Mike comes to the conclusion that the Challenger/K&P filters are "good enough." There were not any real references to why he believes they are "good enough" and some of what he said I believe is mistaken - like the Challenger filters are aluminum and have the holes cut into them. I know my K&P is stainless wire mesh - not sure about the Challenger, but I read it's the same.

Both S-15 and Challenger are stainless Dutch weave wire mesh.

I have to admit I loved everything about the K&P except that it's a crappy filter. Otherwise, it's great! 🤣

Yeah, me too, if it was twice as large and had a good fiber depth filtration insert...oh wait, Lycoming already did that....

Old School.jpg
 
Real world no BS. I've run Challengers in my piston helicopters for many years the engines are scoped along with compressions and labs every 100 hours, Ive not seen any issue with the reusable filters. Two things for engine longevity 1) Lead buildup is always a problem with anything, Use good oil and change it often so it can do its job scavenging lead. 2) Engines can't sit, Condensation destroys engines. If you can't fly ground run and get the engine up to operating temp at least 20 mins. We do 7 day ground runs on machines that don't fly regular. No additive will save an engine with old oil that has not flown at least monthly.
 
The mesh screens absolutely, positively do not filter as well as any of the fiber media filters. In a perverse way, that's a good thing, because they do not hold as much contaminant before they bypass...six times less than the worst fiber filter. They don't meet the SAE ARP1400 filtration standard set a half century ago. And the mesh size claim was indeed BS.

But you're welcome to use 'em if you like 'em.
 
Real world no BS. I've run Challengers in my piston helicopters for many years the engines are scoped along with compressions and labs every 100 hours, Ive not seen any issue with the reusable filters.
I dont think anyone thinks the Challenger "causes" any issues... But there is very compelling testing that proves its also NOT an effective filter for your oil. Your operational experience is evidence that you could probably run with nothing but the old school Lycoming screen and be fine.

So to be clear:

- Some Lycomings dont need an effective filter to run to TBO

- The Challenger is not an effective filter
 
Real world no BS. I've run Challengers in my piston helicopters for many years the engines are scoped along with compressions and labs every 100 hours, Ive not seen any issue with the reusable filters. Two things for engine longevity 1) Lead buildup is always a problem with anything, Use good oil and change it often so it can do its job scavenging lead. 2) Engines can't sit, Condensation destroys engines. If you can't fly ground run and get the engine up to operating temp at least 20 mins. We do 7 day ground runs on machines that don't fly regular. No additive will save an engine with old oil that has not flown at least monthly.

What was scoped, top and bottom ends?

TBO was initially set with the original POS factory suction screens. None made it without regular flying. OEM doubled their recommended oil change intervals when a real filter element was incorporated.

No (mechanical/blower) forced air cooling for GA aircraft. Ground running to operating temps for 20 minutes is begging for cylinder head cracks as a minimum.

Your secondary data isn’t valid for our apps, IMO.
 
If you can't fly ground run and get the engine up to operating temp at least 20 mins. We do 7 day ground runs on machines that don't fly regular
If only Lycoming knew about this and stopped telling us to avoid ground runs which they believe harm the engine end seals more than help. smh

No additive will save an engine with old oil that has not flown at least monthly
I talked to camguard at this year's SnF and their tech claimed the anti-corrosion component activates a barrier film on the surfaces that is still present even after two years of not running. It is statically attracted to the metal and does not run off. Do we believe this is true?
 
Fixed that for ya...
I don't know if "ZDDP" is one of the ingredients of camguard cocktail, but take a look at this article

 
We do 7 day ground runs on machines that don't fly regular.
Why not just go fly them? Gotta be in them anyway. If they're just idling, they're not heating up fast enough, nor holding the oil hot enough, to help vs. just letting them sit.
 
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