1996 Pontiac Firebird Owner's Manual - Page 264

How to Add Fluid Refer to the Maintenance Schedule to determine what kind of transmission fluid to use. See "Recommended Fluids and Lubricants" in Index. the Add fluid only after checking the transmission fluid HOT. (A COLD check is used only as a reference.) If of the the fluid level is low, add only enough proper fluid to bringthe level up to the HOT area for a hot check. It doesn't take much fluid, generally less than a pint (0.5 L). Don't overfill. We recommend you use only fluid labeled DEXRON@-111, because fluid with that label is made especiallyfor your automatic transmission. than Damage caused by fluid other DEXRON-111 is not covered by your newvehicle warranty. 0 After adding fluid, recheck the fluid level as Check." described under "How to 0 3800 L36 Engine Transmission Dipstick 3. Check both sidesof the dipstick, and read the lower level. The fluidlevel must be in the COLD area for a cold check or in the HOT area or cross-hatched area for a hot check. 4. If the fluid levelis in the acceptable range, push the dipstick back in all the way. When the correct fluidlevel is obtained, push the dipstick back in all the way.