In cleaning out my garage today, I came across a few quarts of older oil left over from prior purchases and cars I no longer have. Can anyone tell me if these quarts are still useful?
1. Quaker State 10W40 (SG, SF/CC, CD)
2. Mobil 10W30 (SG, SF/CC, CD)
Kent Kester
1. Quaker State 10W40 (SG, SF/CC, CD)
2. Mobil 10W30 (SG, SF/CC, CD)
Kent Kester