Not really. Water based coolers are far more efficient at heat exchange, hence the reason auto OEM's as well as large truck and heavy equipment manufacturers use water based coolers as the primary heat exchanger for their power trains. Size for size, the liquid units work a lot better than air.
As far as routing goes, making cold fluid even colder is catastrophic failure waiting to happen. A properly designed aux cooler has a differential pressure valve to allow the oil to bypass it when it's too cold. Most aftermarket units don't have this, and the ones that do aren't cheap. Makes more sense to heat the fluid first, and also have a bypass on the aux cooler in case the fluid is still too thick.
Finally, heat exchange is heat exchange. If you have two exchangers plumbed in series, their total cooling capacity doesn't change no matter which way the fluid flows. So what purpose does it serve to reverse them?
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As far as routing goes, making cold fluid even colder is catastrophic failure waiting to happen. A properly designed aux cooler has a differential pressure valve to allow the oil to bypass it when it's too cold. Most aftermarket units don't have this, and the ones that do aren't cheap. Makes more sense to heat the fluid first, and also have a bypass on the aux cooler in case the fluid is still too thick.
Finally, heat exchange is heat exchange. If you have two exchangers plumbed in series, their total cooling capacity doesn't change no matter which way the fluid flows. So what purpose does it serve to reverse them?
Sent from my XT1585 using Tapatalk