1998 Oldsmobile 88 Owner's Manual - Page 249

How to Add Fluid Refer to the Maintenance Schedule to determine what kind of transaxle fluid to use. "Recommended See Fluids and Lubricants"in the Index. If the fluid level is low, add only enough proper of the fluid to bring the level the cross-hatched area on into the dipstick. 3. After adding fluid, recheckthe fluid level as described under "How to Check." 4. When the correct fluid level is obtained, push the dipstick back in all the way. Engine Coolant The cooling s stem inyour vehicle is filled with DEX-COOL B engine coolant. This coolant is designed to remain in your vehicle 5 years or 150,000 miles for whichever occursfist, if you add only (240 000 DEX-COOLextended life coolant. 1. Pull out the dipstick. 2. Using a long-neck funnel, add enough fluid at the dipstick hole to bring to the proper level. it It doesn't take much fluid, generally less than one pint (0.5 L). Don't overfill. kmh I NOTICE: We recommend youuse only fluid labeled DEXRON@-111, because fluid with that label is made especiallyfor your automatic transaxle. Damage caused by fluid other than DEXRON-III is not covered by your new vehicle warranty. The following explains your cooling system and how to add coolant when is low. If you have a problem it with engine overheating,see "Engine Overheating"in the Index. A 50/50 mixture of water and DEX-COOL@ coolant will: Give freezing protection down to -34°F (-37°C). Give boiling protection up to O (129 O C). 265 F Protect against rust and corrosion. Help keep the proper engine temperature. Let the warning lights and gages workas they should. 6-20