Thread: At which RPM does your oil pressure gauge peg?
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Old 04-03-2004, 12:40 AM
300sd2000 300sd2000 is offline
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Join Date: Sep 2000
Posts: 97
Following up on this similar issue, mine pegs around 2000-2500 RPM and warm idles around .8 Bar.

Cold idle is 3.0 bar pegged.

This is a 84 Diesel 280,000 miles running Mobil 1 10W-30 (P.S. Started using 10W-30 for the winter months and noticed lower pressure, previously warm idle was 1.4 bar on 15W50 synthetic)

It scares me to have it that low and not immediately peg until reaches 2000 RPM on a warm day on idle....should I just go back to using 15/50 (it never really gets that cold where I live).

No significant oil loss anywhere. Car runs good otherwise.
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1) 84 300SD 285K+ Miles (Ver Calif)
2) 84 300SD 175K+ Miles (Ver Federal)
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