Nissan 370Z Forum - View Single Post - Oil pressure more important than temperature?

PaulZ370 · 03-03-2019, 10:33 AM

Oil Pressure is Extremely more important. Loss of Oil Pressure is like a Heart Attack, it will kill your engine in a matter of minutes. Oil Temp is important, however, it is a long term "illness" that could damage your engine over time. Simply put, if Oil Temps do not consistently reach upwards of 200°F in order that any water residue from the Internal Combustion Reaction evaporate out of the oil (boiling Point of Water is at 212°F), then the oil will become contaminated which results in corrosion of internal parts and a host of "bad things" happening to your engine as a result. Keep in mind, our VQ Engines will suck almost every drop of oil in the sump upon Hard Acceleration to deliver it to all the critical parts of the engine. Contaminated oil is the last thing you want being used to try and protect these Critical Components, especially at engine stressful events like Hard Acceleration. Also, at Oil Temps below 140°F and above 260°F, the computer will restrict engine power to the point that extreme hot temps will result in a condition called "Limp Mode" in which the engine will not rev above 3500RPM's until the Oil Temp drops back below 260°F.

So, in short - Definite on an Oil Pressure Gauge, but then, maybe an Oil Temp gauge as well...

03-03-2019, 10:33 AM	#3 (permalink)
PaulZ370 Track Member Join Date: May 2011 Location: Covington, LA Posts: 956 Drives: 011 370 BSM/T/SP/6MT Rep Power: 16	Oil Pressure and Oil Temp Redux Oil Pressure is Extremely more important. Loss of Oil Pressure is like a Heart Attack, it will kill your engine in a matter of minutes. Oil Temp is important, however, it is a long term "illness" that could damage your engine over time. Simply put, if Oil Temps do not consistently reach upwards of 200°F in order that any water residue from the Internal Combustion Reaction evaporate out of the oil (boiling Point of Water is at 212°F), then the oil will become contaminated which results in corrosion of internal parts and a host of "bad things" happening to your engine as a result. Keep in mind, our VQ Engines will suck almost every drop of oil in the sump upon Hard Acceleration to deliver it to all the critical parts of the engine. Contaminated oil is the last thing you want being used to try and protect these Critical Components, especially at engine stressful events like Hard Acceleration. Also, at Oil Temps below 140°F and above 260°F, the computer will restrict engine power to the point that extreme hot temps will result in a condition called "Limp Mode" in which the engine will not rev above 3500RPM's until the Oil Temp drops back below 260°F. So, in short - Definite on an Oil Pressure Gauge, but then, maybe an Oil Temp gauge as well... __________________ *BD2ZBN :: 2011 BSM/TRG/SP/6MT/Stillen Oil Cooler/K&N CAI/Michelin PSS/Brake Light/EIBACH Sway Bars/FI Res. HFC+18" Res. CBE/Morimoto XB LED/DRLs/10mm Spacers*