Common questions

What does it mean when the oil temperature is too high?

What does it mean when the oil temperature is too high?

The oil temperature is a vital part to keeping your engine running smoothly. The oil temperature should be a few degrees warmer than the coolant. If the oil temperature is too high, problems can arise. This way, your engine will run more efficiently and live much longer.

What does low oil pressure along with high oil temperature usually indicate?

Low oil pressure can lead to high oil temp, since lowered pressures reduce the flow of oil through the engine, and hence the oil cooler (if so equipped). If you’ve got good pressure, but the temperature is still too high, the next step is to see if the oil is picking up too much heat because of some other problem.

What are the effects if the oil rises above the normal temperature according to the engines operating procedures?

At this elevated temperature, you would expect the viscosity to decrease, the lubricant film to become thinner, an acceleration in abrasion and scuffing conditions, the oil to age sooner, the additives to deplete quicker, an acceleration of corrosion, and the formation of sludge and varnish.

Is it better to have high or low oil pressure?

So, with wide oil galleries and low viscosity oil, flow would be rapid and pressure low. Conversely, under the same pumping conditions; with narrow oil galleries (by design or by blockage) and high viscosity oil, the oil flow will be slow. And, pressure will be high, hence resulting in less efficient lubrication.

Why does high oil temp indicate low oil level?

Note that high oil temperature is one symptom of low oil level. Makes me wonder just how much oil was left in the engine when you landed. Might be you were real lucky not to have had a much worse outcome. N801BH Touchdown! Greaser! Gone West With that much oil loose, I would not have flown the plane without a mechanic looking at it.

When to use high temperature oil or lubricant?

Unfortunately, there is no single right answer to this question. For the sake of reference, generally an oil that is able to work at temperatures higher than 210-250 degrees F (100-120 degrees C) for a normal or extended drain interval may be assumed to be a high-temperature lubricant.

When does high oil temp reach redline?

Apparently they had some trouble finding the correct part, and rather than ground it, they used what they had. It would only reach redline in the hottest summer months at lower altitudes. I really didn’t like it.

What should the oil temperature be on a Lycoming engine?

Let’s look at some of the important things about oil temperature. First of all, the maximum continuous oil temperature on all Lycoming engines is 245°F. Ideally, the desired oil temperature during cruise is 185° to 210°, assuming you are confident in the accuracy of your oil temperature gauge.

Unfortunately, there is no single right answer to this question. For the sake of reference, generally an oil that is able to work at temperatures higher than 210-250 degrees F (100-120 degrees C) for a normal or extended drain interval may be assumed to be a high-temperature lubricant.

Is it bad to run an engine with a low oil temp?

In all engines, the engine’s clearances are significantly tighter, creating extreme amounts of stress on the engine’s internals and the piston rings will not have properly sealed with oil temps too low. In short – it’s really bad for your engine to run it hard until it’s OIL is completely warmed up. Coolant temperature is a false indicator.

When to warm up the oil temperature sensor?

When you first start your vehicle on cold mornings, let the car idle for about five minutes until the oil gets a chance to warm up. This way, your engine will run more efficiently and live much longer. The oil temperature sensor is an important piece to know when your oil is warmed up when working properly.

What should the oil pressure be at 3000 rpm?

The ideal oil pressure ranges between 25 to 65 psi when the engine oil is warm and 1000-3000 rpm, whereas if the oil pressure reading shows 80 psi or above then there is some serious problem.

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Ruth Doyle