What viscosity and how many quarts for 1994 Ford F-150 4x4?

For a 1994 Ford F-150 4x4, the recommended engine oil viscosity is typically 10W-30 or 5W-30, depending on the climate. The engine usually requires around 5 quarts of oil when using a standard oil filter. Always consult the owner’s manual for specific recommendations based on your engine type and conditions.