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Old Nov 18, 2008 | 10:26 PM
  #1  
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external oil cooler

Besides the stock oil cooler, is anybody running a external (extra) oil cooler? Just curious!
 
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Old Nov 19, 2008 | 06:45 AM
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Not that I know of. If you did though it could hurt your mileage and efficiency. Diesels like to be hot. If you cool them down you make it harder for them to burn the fuel. That why the 203 thermostat is a good mod. Gets more heat in the engine.
 
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Old Nov 19, 2008 | 09:25 AM
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X2 with Tj.

I have a cooler and fan with manual bypass.
The only time its used is in summer running on the beach
in 4X4 low. Otherwise i have found no need for it.

Bill
 
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Old Nov 19, 2008 | 11:26 AM
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"High oil temperature in excess of 240°F (115°C) will break down petroleum oils and cause oxidation, which in turn forms deposits, varnish and increases wear.
Low oil temperatures will cause formation of sludge, which can block oil passages."

Since the oil coolers on our truck's keep the engine oil regulated to the same temperature of the coolant you should be just fine unless you reach an overheat condition.
 
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Old Nov 19, 2008 | 08:24 PM
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Originally Posted by rockitdog
"High oil temperature in excess of 240°F (115°C) will break down petroleum oils and cause oxidation, which in turn forms deposits, varnish and increases wear.
Low oil temperatures will cause formation of sludge, which can block oil passages."

Since the oil coolers on our truck's keep the engine oil regulated to the same temperature of the coolant you should be just fine unless you reach an overheat condition.
Is this true with synthetic engine oil also or can it get hotter then dino without breaking down? Thanks PS MadVan, trans so far OK, 600 miles, 1000 to go!
 
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