In 1993, the Chevrolet C1500 and K1500 pickup trucks came standard with a 4.3-liter V-6 with 160 horsepower, but they had an optional 5.7-liter V-8 that produced 210 horsepower. Keeping this engine in top shape requires keeping it full of the right types and amounts of fluids, including the coolant.
The 1993 Chevy 1500 pickup with the 5.7-liter V-8 engine requires 18 quarts of coolant if it has air conditioning, or 17.5 quarts if it does not. That equates to 4.5 gallons and 4.375 gallons, respectively. This 5.7-liter engine uses a 50-50 mixture of ethylene glycol -- green -- antifreeze and clean water.