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Hello and welcome! My name isCustomerand I can assist you with your question. How does the engine run? Does it run good? Does the engine make noise (loud metalic sound when running?) When was the oil changed last?
Ok, as long as the engine oil is clean and full, then it sounds like the oil pressure switch is at fault and will need to be replaced. This would be the most common cause. It is possible that the cluster itself or there is a wiring issue causing this light.. but that would be rare. I would suspect an oil pressure switch first as this is very common. YES, it is Ok to drive to a repair shop to get inspected/diagnosed.
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No, it is not normal to have fuel in the oil. This comes from the oil not being changed regulalry or a performance issue with the engine. For exmaple, if the engine were misfiring or running rich, then a lot of the extra fuel will go into the crankcase and mix with the oil. That is why asked how the engine ran. If the check engine light is on, I would have it scanned for codes and diagnose/fix any as needed. Even if the check engine light is not on, I would have it scanned for codes as there may be a code stored in the computer that is related to fuel in the oil (anything that can cause it to run rich or a misfire condition.
I would also get the oil changed as soon as possible.
Here is the test from directly from the Manufacturer for this oil light illuminated.
Start by checking oil pressure. It should be 4 PSI minimum at idle and at 3000 RPM 25-110 PSI. If the pressure is good, disconnect the oil pressure sending unit and check if on the scan tool the pressure voltages goes to 4.7 to 5 volts. With the sensor disconnected, check for 5-12 volts on the Violet/Grey signal wire. If everything checks out ok, replace the sensor.
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