This is from the Cat 938H loader we use on our farm. Using a Cat 269-8325 filter with an LF777 bypass filter. Using Service Pro 15w-40 engine oil. The loader has 4605 total hours with about 2098 on the oil.
Unit hours 3484, 4046, 4431, 4605
Oil hours 977, 1539, 1924, 2098
Sili 4.6, 5.3, 5.2...