[30 Closed Cab PU]

When my motor was rebuilt, they recommended changing at 50 miles, , at 200 miles, at 500 miles. Then every 500 miles.


They recommended not using synthetic until motor was broke in - according to them at least 5,000 miles. For break-in they suggested Rotella T4 since it is higher detergent with some zinc in it, then use whatever I want to. 6000 and the motor seems to continue to run smoother (less vibration) as more miles are put on it. One thing I have noticed is the T4 seems to get blacker quicker that the oil I was using previously - looks really black at 500 miles (not running an oil filter).