I mentioned this one other time, but it was back in Jan. After traveling on the highway, doing 75 mph, the oil cooler is just that, cool. On my SD it would be hot to the touch, but this one is luke warm at best and that's probably due to it's proximity to the radiator. Is it possible for the temp. sensor in the oil filter housing to go bad. Also, is there any harm in running her as is?

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1999 MB SL500 (110,000 mi)
2004 Volvo V70 2.5T (220,000 mi)
2014 Tesla Model S 85 (136,000 mi)
MBCA member