Need to chime in on this subject.... I have a feeling that most of the Pantera's out there have absolutely no need for an oil cooler. I live in New Mexico and it gets hot. Just ran the Pantera yesterday in 95+ degree weather. My car has a 10 quart baffled oil pan and I run 10W40 oil (non-synthetic). I use a Pantera Performance's two pass radiator (Ron Davis design). I RARELY ever see 200 degrees on my oil temperatures. The only time I ever see temperatures that high is when I get into slow moving traffic (city driving). Running at highway speeds yesterday my water temperature was 170 degrees and the oil temperature at about 180-185 degrees. That is on a 95 degree day. I have two cooling fans for the radiator that are both manually controlled and at highway speeds they are always turned OFF. The only time I use a fan (I control each fan with a separate switch) is in stop and go traffic. It is quite rare that I run both fans at the same time. I drive the car hard and can only recall a handful of times that the oil temperature reached 200 or higher (NEVER at highway speeds or faster). I would highly recommend a 10 quart oil pan for those wanting to keep the oil cool and a nicely designed radiator doesn't hurt either. Hope this info helps! Jim Need to chime in on this subject.... I have a feeling that most of the Pantera's out there have absolutely no need for an oil cooler. I live in New Mexico and it gets hot. Just ran the Pantera yesterday in 95+ degree weather. My car has a 10 quart baffled oil pan and I run 10W40 oil (non-synthetic). I use a Pantera Performance's two pass radiator (Ron Davis design). I RARELY ever see 200 degrees on my oil temperatures. The only time I ever see temperatures that high is when I get into slow moving traffic (city driving). Running at highway speeds yesterday my water temperature was 170 degrees and the oil temperature at about 180-185 degrees. That is on a 95 degree day. I have two cooling fans for the radiator that are both manually controlled and at highway speeds they are always turned OFF. The only time I use a fan (I control each fan with a separate switch) is in stop and go traffic. It is quite rare that I run both fans at the same time. I drive the car hard and can only recall a handful of times that the oil temperature reached 200 or higher (NEVER at highway speeds or faster). I would highly recommend a 10 quart oil pan for those wanting to keep the oil cool and a nicely designed radiator doesn't hurt either. Hope this info helps! Jim