S.C.O. stands for "self-cleaning/changing" oil,I think. I change my oil every 1,000 miles,though. Would like to up-grade to full-flow filter,but I'm not fixin' what ain't broke.


Just sold: 1955 2nd Series 6500 2-Ton Flatbed Truck
Mo' Tater
In the Stovebolt Gallery
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It takes an awful big dog to weigh a ton.