Can't find this anywhere. What is the PS fluid capacity in a C6? Also do you run more when running a cooler? Thanks

 

When I replaced the hose on mine, I got a quart of Dextron III and filled it, then moved the wheel several time lock to lock and then filled per the dip stick.

Mine has a cooler

 

While trans fluid works G.M. says:


Recommended Fluids, Lubricants, and Parts
Recommended Fluids and Lubricants
Fluids and lubricants identified below by name, part number, or specification can be obtained from your dealer.
Usage Fluid/Lubricant
Engine Oil
The engine requires engine oil approved to the dexos specification. Oils
meeting this specification can be identified with the dexos certification
mark. Look for and use only an engine oil that displays the dexos
certification mark of the proper viscosity grade. See Engine Oil on
page 10‑15.
Engine Coolant 50/50 mixture of clean, drinkable water and use only DEX-COOL Coolant.
See Engine Coolant on page 10‑29.
ZR1 Only: Intercooler System 50/50 mixture of clean, drinkable water and use only DEX-COOL Coolant.
See Engine Coolant on page 10‑29.
Hydraulic Brake System DOT 3 Hydraulic Brake Fluid (GM Part No. 88862806,
in Canada 88862807).
Windshield Washer Optikleen® Washer Solvent.
Hydraulic Clutch System Hydraulic Clutch Fluid. Use only GM Part No. 88958860,
in Canada 88901244, Super DOT-4 brake fluid.
Power Steering System GM Power Steering Fluid (GM Part No. 89021184, in Canada 89021186).




And having removed my rack/pinion for Dampner change. Used at least 32 oz to refill W/ cooler.

 

I think the GM 89021184 has been superceded by the 89041185. I found it on Amazon pretty reasonable. I bought two 16oz bottles and had plenty.
Genuine GM Fluid 89021185 Power Steering Fluid - 16 oz. $9.07

 

Dextron Iii is the same fluid. Available at any auto parts store.