Where do you drain the oil in a 1994 Chevy S-10?

The oil drain plug on a 1994 Chevy S-10 is located on the bottom of the oil pan. The oil pan is the large, flat pan underneath the engine. You'll need to get under the truck to access it. The plug is usually a fairly large bolt, often 13mm or 14mm, but you should verify with your owner's manual or by visually checking before you start. Always be cautious when working under a vehicle and use jack stands. Don't just rely on a jack.