However, generally speaking, for a 1993 Ford Ranger, a common recommendation would be:
* SAE 10W-30: This is a good all-around weight for most climates.
Before using any oil, always check your owner's manual. The manual will specify the correct oil viscosity (like 10W-30, 5W-30, etc.) and the API certification (like SL, SM, etc.). Using the wrong oil can damage your engine. The API certification will likely be outdated compared to modern standards, but it's important to use an oil that meets or exceeds the specification in the manual.
