Where is oil dipstick on 1991 Chevy S-10?

The oil dipstick on a 1991 Chevy S-10 is located on the top of the engine, usually near the front (but slightly to the passenger side depending on the engine). It's a yellow-topped dipstick with a handle that's relatively easy to spot once you open the hood. Look for a bright yellow or orange handle sticking up from the engine valley.