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Oil Pressure High With Cold Engine


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Posted

I'm guessing this is normal operation but when the engine is cold my oil pressure sits around 500 - 700 kpa (72.5 - 101.5 psi). When the engine warms up after 10+ min it goes to around 400 kpa (58 psi). I just never noticed the oil pressure going that high on my 2014. I also noticed the engine runs a bit cooler on my 2019 over my 2014. The engine temp has never gone over 90 C (194 F) even on a hot day. 

Posted

That's about right. Cold engine, cold oil. Its thicker. As it warms up, the oil is thinner. Think of squeezing cold honey out of a bottle vs. Warm. 

Posted

That makes sense. I'm guessing these digital gauges are more accurate than analogue ones.  I don't remember my 2012 or 2014 trucks moving much from centre. 

  • 3 weeks later...
Posted

2019 6.2 does change from higher to lower oil pressure (cold to full temp) but not by a lot that I have noticed, electronic gauges do not seem to catch my eye as much.   

I have noticed this on my old beater 09 Tahoe with 6.0 FLA engine with +220k miles. It has mechanical gauges so may be a bit more noticeable to me.

Cold start it runs at around 75- 80 psi then settles down to 40 45 at full temp idle. So must be a pretty common thing.......................   

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