What type of transmission fluid does the 2003 chevy blazer use?

The 2003 Chevy Blazer uses a Valvoline synthetic blend. It is recommended that You use only 1 US quart. You have to add it in Your gearbox to get a safe and smooth experience out of Your gears. It really makes the handling of Your vehicle much easier as well. This transmission fluid is usually used to lubricate, as the name suggests, the transmission components of Your car to get the optimum performance out of it. Different fluids are used for different purposes. But it is mainly used in the gearbox of Your car to provide torque and speed conversions from the engine. It is generally considered a good practice to change the transmission fluid after every 30,000 to 60,000 miles out of Your car.