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Excessive Oil Consumption on my 2017 TLX V6 FWD - Needing to Add Oil Frequently

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Mike T. · rep 0 · May 26, 3:34 AM · 1 replies · solved · Question

Vehicle: 2017 Acura TLX V6 FWD

I'm a bit concerned about my 2017 Acura TLX V6 FWD. It has about 70,000 miles on it, and for the past few oil changes, I've noticed I'm having to add about 1-2 quarts of oil between the scheduled 7,500-mile intervals. The 'add oil' light usually comes on around the 4,000-5,000 mile mark after an oil change.

There are no visible leaks under the car, and I don't see any blue smoke from the exhaust, so I'm really scratching my head. Is this normal for the J35 V6 engine, or is something wrong? I've heard some things about VCM, but I'm not sure if that's related.

Any insights or similar experiences would be greatly appreciated!

✓ Accepted solution

ClearTheCode Admin

ClearTheCode Team · rep 0 · May 26, 3:34 AM

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ClearTheCode admin answer:

Excessive oil consumption on the J35 V6 engine, particularly in models equipped with Variable Cylinder Management (VCM), is a known issue for some Honda/Acura owners, including those with the 2017 Acura TLX V6. Here's what could be contributing and what to do:

  1. Variable Cylinder Management (VCM): VCM is designed to improve fuel economy by deactivating cylinders during light-load cruising. However, some theories suggest that the cylinder deactivation can lead to increased oil consumption due to piston ring issues in the cylinders that are frequently deactivated. Carbon buildup on piston rings can cause them to stick, allowing oil to bypass into the combustion chamber.
  2. PCV Valve: A faulty or clogged Positive Crankcase Ventilation (PCV) valve can lead to increased crankcase pressure, forcing oil past seals and piston rings. This is a relatively inexpensive part to replace and should be checked.
  3. Oil Type and Viscosity: Ensure you are using the correct oil type and viscosity recommended by Acura (typically 0W-20 full synthetic). Using an incorrect oil can sometimes exacerbate consumption issues.
  4. Driving Habits: Frequent short trips or aggressive driving can sometimes contribute to oil consumption, though typically to a lesser degree than mechanical issues.
  5. Oil Life Monitor (OLM): While the OLM suggests oil change intervals, if you're experiencing consumption, monitoring your oil level manually with the dipstick every 1,000-1,500 miles is crucial, regardless of the OLM percentage.

When to See a Shop: If you're consistently adding 1-2 quarts between changes, it's advisable to have a qualified Acura technician perform an oil consumption test. This involves precisely measuring the oil at specific intervals over a set mileage to officially document the consumption rate. If it's deemed excessive by Acura's standards, they may recommend further diagnostics or repairs, potentially involving piston rings or other engine components. There are also aftermarket VCM disabling devices that some owners use, but these are not officially sanctioned by Acura and may affect warranty or emissions.

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