Some finds:

 

Material Notes:
Description: Conoco Hydroclear DEXRON® III & MERCON® Automatic Transmission Fluid is a multipurpose fluid for the electronically controlled transmissions of most domestic and imported automobiles, trucks and buses built after 1989. It is approved by GM as a DEXRON III fluid and by Ford as a MERCON fluid. It is recommended for Ford transmissions requiring Type CJ and Type H fluids. It is approved by Allison as a C-4 fluid and also can be used in off-highway transmissions, power steering systems and other hydraulic systems. Hydroclear DEXRON III & MERCON Automatic Transmission Fluid is suited for a wide variety of industrial applications that call for an ISO 46 or SAE 20W hydraulic fluid. It qualifies as a Denison HF-O hydraulic fluid and has performed well in both Sunstrand and Vickers hydraulic pumps. Hydroclear DEXRON III & MERCON Automatic Transmission Fluid improves shifting characteristics at both high- and low-ambient temperatures. It resists thermal and oxidative degradation and offers outstanding low-temperature fluidity. It inhibits the formation of gum, sludge, lacquer and foam, protecting transmission from rust, corrosion and wear. It is dyed red for easy identification.

Applications:

Havoline Automatic Transmission Fluid MERCON®/DEXRON®-III is designed for use in General Motors Corporation transmissions that specify a DEXRON-III, DEXRON-II or DEXRON-IIE fluid and Ford Motor Company transmissions that require a MERCON fluid.

It is an excellent choice in any transmission where the manufacturer recommends a DEXRON® or MERCON® qualified product. It is suitable for use in Mercedes-Benz passenger car automatic transmissions and ZF truck transmissions. It is also recommended for transmissions, power steering systems, and hydraulic systems requiring a DEXRON®-III, Allison C4 or Caterpillar TO-2 fluid.

Havoline Automatic Transmission Fluid MERCON®/DEXRON®-III is also used as a light oil in compressors, pumps and hydraulic systems and bearings.

And from the Oildyne catalog for small package hydraulic pumps of the type installed in our kit aircraft:

 

Hydraulic Fluid

ATF, OD18, or other clean hydraulic oil with a viscosity

of 150 to 300 SUS at 38°C (100°F) is acceptable.

If another type of fluid is needed, please consult the

factory.

 

 

Once again, science and engineering continue to advance, overcoming old airplane fear and superstition!

 

Fred, AKA

Captain Tuna, Chicken of the Skies