300tdi Oil temp

aeo

Well-known member
What causes an increase in oil temps?

I've noticed an increase in oil temp over the last few months. She was running at 180-190 F and now she's at 200-210 F. At the end of last summer I went on a oil leak chase and finally figured out it was the oil cooler lines. I have replaced the oil cooler fittings, and the sandwich plate. I believe the pressure sender is new but my oil temp sender is the same- located in the oil pan. It does have a separate oil cooler mounted below the front frame. My next move might be to use the oil cooler on the new radiator (old one didn't have an oil cooler).

Everything else is fine- oil pressure, coolant temp, EGT and Boost.

Thanks,
Alex
 
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