What type of transmission fluid and how much do you put in your 1990 Honda accord dx?

The 1990 Honda Accord DX is equipped with a 4-speed automatic transmission, known as the "Hondamatic" transmission. The recommended transmission fluid for this vehicle is Honda Genuine ATF (Automatic Transmission Fluid) or an equivalent ATF meeting Honda's specifications.

As for the amount of transmission fluid to add, it depends on whether you're doing a partial fluid change or a complete fluid change.

Partial Fluid Change: If you're only changing a portion of the transmission fluid (which is usually recommended for maintenance purposes), you'll need approximately 2.8 quarts (2.7 liters) of transmission fluid.

Complete Fluid Change: If you're performing a complete transmission fluid change, which includes draining all the old fluid and replacing it with new fluid, you'll need approximately 4.2 quarts (4.0 liters) of transmission fluid.

It's important to consult the owner's manual or a reliable source for the exact fluid capacity and specifications for your specific vehicle's transmission.