Prop grease

[BDPetersen]

My AI just called to see if I had any Aeroshell #6 grease. I don’t. Apparently there is a production problem (fire?) that won’t be resolved until spring, according to a supplier I contacted. It’s a prop grease. So if you are sitting for a case or two, now is your chance to cash in. The supplier said Aeroshell might know of an alternative. Fortunately it’s not a current need of mine.

[Skates97]

@Cody Stallings has posted many times about using Aeroshell #5 instead of #6 in props. Here is one of the posts.

 

[PT20J]

Here's a thread on BeechTalk with a post including a Hartzell document for substitution of AS 5.

https://www.beechtalk.com/forums/viewtopic.php?f=7&t=202803

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[BDPetersen]

I’m not sure if the production issue is for #6 or if it’s for all Aeroshell grease(s). 

[takair]

I understand the production facility for both types burned down.  Aeroshell 5 and 6 is like gold now, if you need it.  Aircraft Spruce had said April at the earliest.

[PT20J]

Can't get Aeroshell 22 either

[MikeOH]

One more data point: my A&P tells me it affects ALL aviation greases   His story of the factory burning down matches one of the above.  He is NOT nearly so optimistic about an April recovery...more like, "who knows when???"

[PT20J]

Spruce shows stock on Mobilgrease 28 and 33

[1980Mooney]

It’s just as well that Aeroshell #6 is not available. They made a change in its formulation a while back and it is suffering premature separation of the mineral oil. Van’s is reporting the problem too

https://vansairforce.net/community/showthread.php?t=178968

My Hartzell is streaking the blades and throwing on my windscreen. It is currently in a Hartzell shop for a reseal with Nyco GN3058 a lithium synthetic grease.  Hartzell no longer uses Aeroshell on new props  

https://hartzellprop.com/SERVICE-DOCUMENTS/SL/HC-SL-61-366.pdf