Aviation alternative to regular auto Mobil 1 grease

[Cujet]

I work at the airport. I have the following aviation greases in stock, some are expired, so I must discard them. Aeroshell 17 (moly grease) 22, 27, 33, 5 and Mobil 28 and SHC 100 plus a few more. Are any of these a good replacement for the general purpose Mobil 1 grease that I purchase down at the auto parts store?

I use the grease for my dirt bike and street bike suspension + wheel bearings, mower blades bearings, Automotive wheel bearings, automotive suspension, and any other greasable thing I have.

I have had excellent results with the automotive Mobil 1 grease.

What, if any aviation grease would perform as well?

Thanks!!

Chris

 

[Kestas]

Mobil 28 is an excellent synthetic grease with an organo-clay thickener. I too have some when they purged the stock from our facility. It operates in a wide range of temperatures, has good thermal stability, has EP additives, is good for low or high speed bearings, has low running torque, and can handle shock loading. But it is an NLGI 1.5 grade - not good for automotive wheel bearings. It would probably do well in lighter duty, like dirt bikes.

 

[Cujet]

Well, my dirt bike bearings do not last long, so I am not sure they are subject to light duty. Sand and water are big problems for dirt bikes and all of the associated components.

SHC 100 looks to be fairly close in spec. But the 4 ball wear test is not quite as good as Mobil 1 grease.

Chris