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Excessive Oil Consumption on 2017 ILX Base Model

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Mike T. · rep 0 · May 26, 3:29 AM · 1 replies · solved · Question

Vehicle: 2017 Acura ILX Base

I've noticed my 2017 Acura ILX Base model seems to be consuming a lot of oil lately. I had an oil change about 3,000 miles ago, and the oil level is already significantly low, almost a quart down. I don't see any obvious leaks under the car or any smoke from the exhaust, which is confusing.

I'm having to top off the oil between changes more frequently than I ever have with previous cars. Is this a known issue with the ILX, specifically the 2.4L engine? I'm worried about potential engine damage if this continues.

What could be causing this? Should I be concerned about the catalytic converter or other components if it's burning oil? Any advice on what to look for or how to approach this with a mechanic would be great.

✓ Accepted solution

ClearTheCode Admin

ClearTheCode Team · rep 0 · May 26, 3:29 AM

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ClearTheCode admin answer:

Excessive oil consumption in a 2017 Acura ILX Base model, especially without visible leaks, points towards the engine burning oil internally. This can be a serious concern if not addressed. Here are the primary causes and steps:

  1. Worn Piston Rings or Valve Seals: This is the most common reason for internal oil consumption. As these components wear, oil can seep past them into the combustion chamber and burn off with the fuel. While 3,000 miles for a quart down is significant, some manufacturers consider a certain amount of oil consumption 'normal'; however, this often exceeds that threshold.
  2. PCV (Positive Crankcase Ventilation) System Issues: A clogged or faulty PCV valve can lead to increased crankcase pressure, forcing oil past seals and rings. It's a relatively inexpensive part to inspect and replace.
  3. Turbocharger Issues (if applicable): While the 2017 ILX Base does not have a turbo, for other models that might, a failing turbocharger can also cause significant oil consumption.
  4. Oil Viscosity: Ensure you are using the correct oil viscosity recommended by Acura for your 2017 ILX (e.g., 0W-20). Incorrect oil can sometimes contribute to consumption.
  5. Catalytic Converter Impact: If the engine is burning a substantial amount of oil, the byproducts can foul the oxygen sensors and the catalytic converter, potentially leading to a P0420 (Catalyst System Efficiency Below Threshold) code and eventual failure of the converter.

When to See a Shop:

  • Immediately if you notice blue smoke from the exhaust, especially during startup or acceleration.
  • If the oil consumption rate continues or worsens, as prolonged low oil levels can lead to severe engine damage.
  • Request an oil consumption test from an Acura dealership or trusted mechanic. This involves accurately measuring the oil level, sealing the dipstick, driving a specified distance (e.g., 1,000 miles), and then re-measuring the oil to quantify the consumption rate. This is crucial for warranty claims or major repairs. They can also perform a compression test or leak-down test to assess piston ring and valve seal integrity.
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