Q: Check engine light and oil light comes on before oil change?

asked by on

My car is very weird. It runs flawlessly for having 130k miles on it . However this weird thing happens when I get near my oil change times. The first thing that happens is around 300 miles before oil change time it lights up low oil light, as well as the tire pressure light. Then when I get to around 150 to 100 miles left the check engine light will once and awhile come on as well. But every single time I get the oil done the lights all go away until the same time roughly before the oil change... please tell me why this is
My car has an automatic transmission.

Hi There, As you may know, these lights are designed to come on at specific mileage intervals that are preset by the factory. When your mileage exceeds a certain amount relative to the last oil change, this will trigger the lights to come on. Typically this will include the oil light and the check engine light as there are also other basic service items that are checked during oil changes. I would recommend obtaining an owner’s manual for your car if you do not already have one. This will usually indicate the specific service intervals and recommended maintenance items for your vehicle at the various mileage intervals.

The tire pressure monitor will also come on when the air pressure in the tires has reached a specific threshold relative to the tire design specification. Tire pressure is also impacted by the outside air temperature. For every 10° drop in air temperature outside your tires will lose about 1% in PSI or inflation. As you may know, as the temperature of the air changes the density of the air changes as well causing the tire pressure to be impacted by this. When this happens, the sensors in the wheels will detect this change in tire pressure and cause the tire pressure light to come on. Aside from replacing faulty tire pressure sensors, another way to help prevent this type of fluctuation in tire pressure is by the use of Nitrogen in your tires rather than regular air. As you may know, air is approximately 78% Nitrogen, 21% Oxygen and the rest is water vapor and some other small concentrations of gases. Nitrogen is much less likely to migrate through tire rubber than oxygen. This will maintain your tire pressure much more consistently during large temperature fluctuations.

Was this answer helpful?
The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
  1. Home
  2. Questions
  3. Check engine light and oil light comes on before oil change?

Get an instant quote for your car

Our certified mechanics come to you ・Backed by 12-month, 12,000-mile guarantee・Fair and transparent pricing

Get a quote

What others are asking

Q: Turbo cooler leaking small amount of oil

any oil leak to the turbo can cause the turbo to be starved of oil and can damage the turbo bearings. i would recommend replacing the cooler or repairing the oil leak at the line fittings.

Q: I have a 2008 f250 with a 6.4 diesel. I have the updated hoses on it. I moved the top hose at the radiator and I heard pressure re

Your best indication of the efficiency, and condition, of the cooling system is the engine operating temperature. If the operating temperature is in the "normal" range for your engine, then you need not worry. As far as the generation of...

Q: Radio won't turn off whole car is one. No lights are working on the radio console. None of the buttons are functioning

Hello, thank you for writing in. While checking your fuses is never a bad idea, specially with this many miles, it is most likely an issue with the radio itself. You can try swapping out the deck for a different...

Related articles

P0052 OBD-II Trouble Code: HO2S Heater Control Circuit High (Bank 2 Sensor 1)
P0052 code definition HO2S Heater Control Circuit High (Bank 2 Sensor 1) What the...
How Much Does a Mechanic Make in Vermont?
Automotive technician jobs in Vermont have an average mechanic salary of $37k, with some mechanics earning a salary of $53k.
P2103 OBD-II Trouble Code: Throttle Actuator Control Motor Circuit High
P2103 means there is a fault with the throttle actuator control motor circuit, likely due to a defective electrical component or part.