1997 Chevrolet Astro Owner's Manual - Page 279

How to Add Fluid Refer to the Mainterl'ance Schedule to determine what kind of transmission fluid to use. See "Recommended Fluids and Lubricants" in the Index. Add fluid only after checking the transmission fluid HOT. (A COLD check is used only as reference.) If the fluid a level is low, add only enough of the proper fluidto bring the level up to the HOT area for a hot check. It doesn't take.much fluid, generally less thanone pint (0.5 L). Don P overjill. After adding fluid, recheck the fluid level as described under "How to Check." When the correct fluid level is obtained, push the dipstick back in all the way; then flip the handle down to lock the dipstick in place. All-Wheel Drive If you have an all-wheel-drive vehicle, be sure to perform the lubricant checks described in this section. However, they have two additional systems that need lubrication. I NOTICE: - Transfer Case When to Check Lubricant Refer to the Maintenance Schedule to determine how often to check the lubricant. See "Periodic Maintenance Inspections'' in the Index. We recommend youuse only fluid labeled DEXRON@-111,because fluid with that label is made especiallyfor your automatic transmission. Damage caused by fluid other than DEXRON-I11 is not coveredby your new vehicle warranty. 6-23