This is the oil I drained from the sump after I bought the forklift. Hasn't been run in 15 years or so and was badly abused, no air cleaner and lots the of sludge. Despite the abuse I was able to get the engine running again and was surprised how well it ran, good oil pressure and little blow-by. I had the oil pan off and cleaned everything up and filled it with fresh Rotella T 15W40. I'll run the engine 20 hours and take a new sample and see how its doing. Here's the sample:

