The normal oil pressure range for a 5.7 Hemi engine can vary depending on factors such as engine temperature and RPM. However, according to one source, the oil pressure should be approximately 42 psi when the engine RPM is at 1100 or more [1].
Key Facts
- Normal oil pressure range: The normal oil pressure range for a 5.7 Hemi engine can vary slightly depending on factors such as engine temperature and RPM. However, according to one source, the oil pressure should be approximately 42 psi when the engine RPM is at 1100 or more.
- Oil pressure gauge readings: The oil pressure gauge readings can vary depending on the specific vehicle and its gauge calibration. In one example, a 2018 Limited 5.7 Hemi owner reported that the oil pressure gauge on their vehicle hovered between 53-60 psi when idling while cool and when driving. When warmed up, the oil pressure dropped to around 40 psi at idle.
- Fluctuations in oil pressure: Oil pressure can fluctuate based on various factors such as engine load, acceleration, and temperature. Some owners reported that their oil pressure would increase when accelerating and decrease when letting off the accelerator.
- Acceptable oil pressure range: Based on the reported experiences of 5.7 Hemi owners, oil pressure readings in the range of 50-60 psi when cold and mid to high 40s when hot at idle are considered normal[3].
Oil Pressure Gauge Readings
The oil pressure gauge readings can vary depending on the specific vehicle and its gauge calibration. In one example, a 2018 Limited 5.7 Hemi owner reported that the oil pressure gauge on their vehicle hovered between 53-60 psi when idling while cool and when driving. When warmed up, the oil pressure dropped to around 40 psi at idle [2].
Fluctuations in Oil Pressure
Oil pressure can fluctuate based on various factors such as engine load, acceleration, and temperature. Some owners reported that their oil pressure would increase when accelerating and decrease when letting off the accelerator [2].
Acceptable Oil Pressure Range
Based on the reported experiences of 5.7 Hemi owners, oil pressure readings in the range of 50-60 psi when cold and mid to high 40s when hot at idle are considered normal [3].
References
[1] https://www.justanswer.com/dodge/m47pv-2009-dodge-ram-1500-5-7-hemi-oil-pressure-won-t-go-above.html
[2] https://www.jeepgarage.org/threads/5-7l-oil-pressure-what-is-normal-range.236320/
[3] https://5thgenrams.com/community/threads/what-is-your-oil-pressure.7343/
FAQs
What is the normal oil pressure range for a 5.7 Hemi engine?
The normal oil pressure range for a 5.7 Hemi engine can vary depending on factors such as engine temperature and RPM. However, according to one source, the oil pressure should be approximately 42 psi when the engine RPM is at 1100 or more.
How can I check the oil pressure on my 5.7 Hemi engine?
You can check the oil pressure on your 5.7 Hemi engine using an oil pressure gauge. Connect the gauge to the oil pressure port on your engine and start the engine. The gauge will display the oil pressure in psi.
What factors can affect the oil pressure in my 5.7 Hemi engine?
Factors that can affect the oil pressure in your 5.7 Hemi engine include engine temperature, RPM, oil viscosity, and the condition of the oil pump and oil filter.
What are the signs of low oil pressure in a 5.7 Hemi engine?
Signs of low oil pressure in a 5.7 Hemi engine can include an illuminated oil pressure warning light, knocking or ticking noises from the engine, and a decrease in engine performance.
What should I do if I have low oil pressure in my 5.7 Hemi engine?
If you have low oil pressure in your 5.7 Hemi engine, you should stop driving the vehicle immediately and have it towed to a qualified mechanic. Low oil pressure can cause serious engine damage.
What is the best way to maintain proper oil pressure in my 5.7 Hemi engine?
The best way to maintain proper oil pressure in your 5.7 Hemi engine is to follow the manufacturer’s recommended maintenance schedule, which includes regular oil changes and oil filter replacements. You should also use the correct type and viscosity of oil for your engine.
What are the consequences of running my 5.7 Hemi engine with low oil pressure?
Running your 5.7 Hemi engine with low oil pressure can cause serious engine damage, including scored cylinder walls, damaged bearings, and a seized engine.
What is the recommended oil type and viscosity for a 5.7 Hemi engine?
The recommended oil type and viscosity for a 5.7 Hemi engine will vary depending on the year and model of your vehicle. Consult your owner’s manual for the specific recommendations for your vehicle.