The largest online repair guide library for every car

About us
Contact support
FAQ
Sign up
Sign in

Excessive Oil Consumption on 2019 Equinox 1.5T - Is This Normal?

0

Mike T. · rep 0 · May 25, 1:44 AM · 1 replies · solved · Question

Vehicle: 2019 Chevrolet Equinox LT

Hello fellow Chevy owners,

I'm experiencing what seems like excessive oil consumption with my 2019 Chevrolet Equinox LT, which has the 1.5L turbo engine. I bought it new, and it currently has about 60,000 miles on it. I have to add a quart of oil every 1,500 to 2,000 miles, sometimes even sooner.

There are no visible leaks on my driveway, and I haven't noticed any blue smoke coming from the exhaust. I just had an oil change about 3,000 miles ago, and the level is already significantly down. Is this level of oil consumption normal for these 1.5T engines, or should I be seriously concerned?

What could be causing this, and what steps should I take when I talk to the dealership? I'm worried about potential long-term damage if this isn't addressed properly. Any advice or shared experiences would be very helpful!

✓ Accepted solution

ClearTheCode Admin

ClearTheCode Team · rep 0 · May 25, 1:44 AM

0

ClearTheCode admin answer:

Excessive oil consumption in the 1.5L turbocharged engine found in your 2019 Chevrolet Equinox is a known concern for some owners. While some oil consumption is normal, adding a quart every 1,500-2,000 miles is generally considered high and warrants investigation.

  1. Common Causes for Oil Consumption in 1.5T Engines:

    • PCV System Issues: A clogged or malfunctioning Positive Crankcase Ventilation (PCV) system can cause increased crankcase pressure, forcing oil past seals or piston rings.
    • Turbocharger Seals: The turbocharger operates at high speeds and temperatures. Worn or damaged seals within the turbo can allow oil to leak into the exhaust or intake system, where it's burned off.
    • Piston Ring Wear/Design: In some cases, issues with piston ring design or premature wear can prevent proper sealing, allowing oil to bypass into the combustion chamber.
    • Valve Stem Seals: Worn valve stem seals can allow oil to seep into the combustion chamber from the cylinder head.

  2. Official GM Oil Consumption Test:

    • Procedure: Chevrolet dealerships have a specific procedure for diagnosing oil consumption. This typically involves an oil change, sealing the oil fill cap and drain plug, and monitoring the oil level over a specified mileage (e.g., 1,000-2,000 miles). You'll be asked to return to the dealership for periodic checks.
    • When to see a shop: You should schedule an appointment with your Chevrolet dealership to initiate this official oil consumption test. Document all oil additions you've made.

  3. Potential Diagnostic Codes:

    • While direct oil consumption codes are rare, severe consumption can lead to other issues:
      • P0420 (Catalyst System Efficiency Below Threshold): Excessive oil burning can foul the catalytic converter.
      • P030x (Cylinder Misfire): If oil buildup on spark plugs becomes severe, it can cause misfires.
    • When to see a shop: If you experience any related symptoms like a Check Engine Light, rough idling, or reduced power, mention these to the technician.

It's important to address this promptly. Prolonged excessive oil consumption can lead to carbon buildup, premature wear of engine components, and catalytic converter failure, which are expensive repairs.

Menu

Help & account