What type of engine oil does a forklift with an Isuzu take?

Forklifts with Isuzu engines typically require diesel engine oil that meets API (American Petroleum Institute) specifications, such as CI-4 or higher, depending on the specific engine model and year. It's essential to check the owner's manual or manufacturer recommendations for the correct viscosity grade, which is often 15W-40 for many diesel engines. Additionally, using high-quality oil that meets or exceeds the required specifications can help ensure optimal engine performance and longevity.