Sorta off topic, but I was thinking about down facing fittings the other day and something else popped in my head. If the oil backflows into the pan, that would suggest that the oil coller itself is partially empty. The next time you start your car, I'd imagine that oil would have to refill the cooler before it has enough pressure to start flowing through the rest of the system. This would mean that initial oil pressure would be low at start-up. Wouldn't having top mouted fitting alleviate this?
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2012 Mercedes C63 AMG P31 Sedan, ROW, aFe, Eurocharged Dyno Tune. 438WHP/415WTQ
2010 SOLD: 40th Anniversary 370z
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