What type fluid in a 1998 Chevy S 10 5 Speed Manual Tranny?
A 1998 Chevy S10 5-speed manual transmission uses GL-4 gear oil. However, it's crucial to check your owner's manual for the *specific* weight and type recommended by GM. The manual will list the correct oil specification, which might be something like 75W-90 GL-4. Using the wrong type of gear oil can damage your transmission.