1993 Chevrolet Corvette Owner's Manual - Page 263

Service Psr nce Care Rear Axle (CONT~) What to Use: Engine Coolant e foUowing explains your cooling What to Use: To add lubricant whenthe level use M e Lubricant (GM Part Na 12345977) or SAE BOW-90 GL-5 lubricant. To completely refill after -draining, add four ounces (118 mQaf Limited-Slip DlfferentialLubricant Additive (GM P r No. 1052358). Z m n at fill to the bottom of the filler plug hole with Axle 'Lubricant(GM Part No. 12345977) o,r SAE 8OW-90 GL-5 gear lubricant. sgstm and how to add coolant when it is I m . If you have a problem with e~@e overheating, see the Index under Engine Ouerheating. The proper coolantfor your Corvette * Give freezing protectiondown to (-37°C). Give boiling protection up.to 262°F -3m (128°C) ~ Protect against rust and corrosion. Help keep the proper engine temperature. Let the warning lights work they as should. 262 Use a mixture of one-half clean wafer (preferably distilled)and one-half antifreeze that meets "GM Specification 1825-M," which won't damage aluminum parts. You can also use a recycled coolantconforming to GM Specification 1825-Mwith a complete coolant flush and refill. If you have the LTl engine, use GM Engine Coolant Supplement (sealer)with any complete coolant change. If you use these, you don't need to add anything else.