oil change

[Rev]

I would never go 6 mo. or 12,000 miles on any oil or any filter. The oil may hold up OK, but what about the dirt and blow-by crap? A clogged up filter just bypasses with no filtration at all. Dirt is an abrasive and is bad, bad, bad.

There's also the acid build up from combustion that gets past the the rings, and there is always some blow-by. These impurities need to be drained fairly often.

Change oil and filter often (3000 miles) as PKRWUD said. That's my $.02.

Rev

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'66 Coupe, 306, 300 HP, C-4, 13.97 e.t., 100.3 mph
1/4 mi.