I have been putting in Mobil One oil sine I picked up my 97 TJ six
years ago. I had been using an extra duty oil filter, unaware that
Mobil One had an oil filter. In the fall I put in a Mobil One filter
and my oil pressure ran high - over 42#s. The owner's handbook said
never to operate vehicle over 40 so this concerned me. I checked to
ensure I did not put in to much oil. With the clean oil it can be hard
to tell so I drain a tad but the pressure remained high. I left the
engine in this condition until my next change in December but went back
to the previous oil filter. My pressure never went above 40 with that
filter.
Strange thing is, with the Mobil One filter the low end of my oil
pressure always stayed higher that the previously used filter and I
knew this was good. So my question is my fellow Romans: Thumbs UP or
Thumbs DOWN on Mobil One oil filters?
Thanks,
Steve