Q: Following a complete car tune up with full oil change, the oil light has come on during freeway driving - no overheating and oil level okay.

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in prep for a trip from so cal to nor cal, got full tune up. 1/2 thru 6 hour freeway drive, pulled off for gas and oil light came on. notice "ticking" or "clicking" sound from engine. checked oil level, is fine. engine is not overheating (no action on temperature gauge. did the mechanics leave something loose or incomplete?

The noise that you are hearing is the lifters tapping on the engine as they are not getting any oil. The best thing to do is find out what type of engine oil was put into your vehicle from when it was serviced. If the oil was serviced, then what ever engine oil that was in there previous should be in there now. Different engine oil can cause the engine to not lubricate small parts due to the thickness of the oil. If you need further assistance with your ticking noise, then seek out a professional, such as one from Your Mechanic, to help you.

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