What is the proper oil to use in an 80's Era 6.9 Ford Diesel?
1 Answer
That's an International Harvester Diesel engine.
- SAE 15W-40 for normal conditions
- SAE 10W-30 if its cooler weather
And you're going to need 10 quarts.
That's an International Harvester Diesel engine.
And you're going to need 10 quarts.