Background - It all started with the Scanguage. I can blame Pradopoint for putting me onto the Scanguage. I mainly use it for the X-guages and the ATF temps. Codes can be found here.
I use the Hilux code which apparently measures the ATF body temp not the Torque Converter. It is the more stable temp but I regularly get over 100 deg C and upto 110 going up long hills. Just driving around the suburbs can easily get the temps upto 90. Putting it in S mode helps a little but gearbox still runs hot. Planning to do more beach driving which gets the temp up over 100 deg immediately.
From reading numerous threads it is not recommended to have more than 85 to 90 degree oil temps. The ATF high temp light is set at 150 degrees which seems very high. Most people who have flushed their ATF fluid report brown or burnt fluid. I reasoned that I would also have burnt fluid and I did notice that the shifts felt "softer" when the temps were 90 degrees or more.
So an ATF oil cooler was added to the long list of upgrades and had been pushed up the list of priorities. Deciding which way to go took a bit of reading. I could have got one professionally installed for around $600 or buy one from $150 and install myself. Looking at the various installs on Pradopoint it seemed a pretty straight forward install other than fiddling around with mounting brackets.
The highest temps that I saw were at low speed, hill climbs, sand, and low range work where there would not be alot of airflow over the cooler. I decided I needed a thermo fan with an automatic switch.
The Craig Davies 678 cooler seemed to be a popular choice. It can be had for around $150 which is good value considering it comes with hose and fittings. I bought the DC0698 for $230 which is a 678 with a 8" fan. It came with hose, relays and fittings but no thermo switch. I bought an inline thermo switch for $40. I also needed another metre of 3/8" oil cooler hose and a 3/8" hosetail joiner.
I use the Hilux code which apparently measures the ATF body temp not the Torque Converter. It is the more stable temp but I regularly get over 100 deg C and upto 110 going up long hills. Just driving around the suburbs can easily get the temps upto 90. Putting it in S mode helps a little but gearbox still runs hot. Planning to do more beach driving which gets the temp up over 100 deg immediately.
From reading numerous threads it is not recommended to have more than 85 to 90 degree oil temps. The ATF high temp light is set at 150 degrees which seems very high. Most people who have flushed their ATF fluid report brown or burnt fluid. I reasoned that I would also have burnt fluid and I did notice that the shifts felt "softer" when the temps were 90 degrees or more.
So an ATF oil cooler was added to the long list of upgrades and had been pushed up the list of priorities. Deciding which way to go took a bit of reading. I could have got one professionally installed for around $600 or buy one from $150 and install myself. Looking at the various installs on Pradopoint it seemed a pretty straight forward install other than fiddling around with mounting brackets.
The highest temps that I saw were at low speed, hill climbs, sand, and low range work where there would not be alot of airflow over the cooler. I decided I needed a thermo fan with an automatic switch.
The Craig Davies 678 cooler seemed to be a popular choice. It can be had for around $150 which is good value considering it comes with hose and fittings. I bought the DC0698 for $230 which is a 678 with a 8" fan. It came with hose, relays and fittings but no thermo switch. I bought an inline thermo switch for $40. I also needed another metre of 3/8" oil cooler hose and a 3/8" hosetail joiner.
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