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Gregboat · 03-04-2015, 02:04 PM

I installed a Tranny Cooler during the summer, a moderate sized one (about 9000btu). I chose 9000 because the Cali guys on some of the Prelude forums were using 14,000 and 11,000 btu units, and I decided taht I would go smaller because BC is cooler.

My car ran better than ever during the relatively hot summer, but in October when the temps went down, it worked far too well, the tranny never got up to proper operating temps and it "cold shifted" (the way it does in the morning while its cold) for teh duration of my drives. I actually thought it was the transmission failing, but i bypassed it and it corrected the issues i was having. So long story short, I had a relatively shitty experience with tranny coolers....

As for the ATF level, I also slightly overfill it as well, I find that it keeps it smoother. I also mix a tiny bit of Lucas Oil ATF stabilizer/stop slip in with my Honda ATF, not to stop slippage, but because it raises the temps that ATF burns at, plus it thickens it a little bit which is good for when its hot out or I'm doing longer drives.

03-04-2015, 02:04 PM	#33
Gregboat What hasn't Killed me, has made me more tolerant of RS! Join Date: Nov 2013 Location: Maple Ridge, BC Posts: 189 Thanked 91 Times in 43 Posts Failed 18 Times in 3 Posts	I installed a Tranny Cooler during the summer, a moderate sized one (about 9000btu). I chose 9000 because the Cali guys on some of the Prelude forums were using 14,000 and 11,000 btu units, and I decided taht I would go smaller because BC is cooler. My car ran better than ever during the relatively hot summer, but in October when the temps went down, it worked far too well, the tranny never got up to proper operating temps and it "cold shifted" (the way it does in the morning while its cold) for teh duration of my drives. I actually thought it was the transmission failing, but i bypassed it and it corrected the issues i was having. So long story short, I had a relatively shitty experience with tranny coolers.... As for the ATF level, I also slightly overfill it as well, I find that it keeps it smoother. I also mix a tiny bit of Lucas Oil ATF stabilizer/stop slip in with my Honda ATF, not to stop slippage, but because it raises the temps that ATF burns at, plus it thickens it a little bit which is good for when its hot out or I'm doing longer drives.