How many quarts of oil does a 99 Chevrolet Silverado 3500 crew cab 4x4 take?

The 1999 Chevrolet Silverado 3500 Crew Cab 4x4's oil capacity depends on the engine. You'll need to check your owner's manual for the precise amount. However, it's likely to be between 6 and 8 quarts, but this is just an estimate. Always refer to your owner's manual for the exact oil capacity.