In the last 1000 to 1500 miles the Equinox has used possibly up to 1/2 quart of oil. Current mileage is 29500 miles and the next oil change is due at 30k miles. Evidently this is not an uncommon occurrence with the Direct Injection 2.4 Ecotec starting with the 2010 model year. I added 1/2 qt. and will track the level until the next oil change.
The oil is changed every 5k miles with 29% to 35% oil life remaining according to the OLM. No noticeable oil usage between oil changes up to 28.5k miles. The last oil change was with Quaker State Semi-Synthetic, prior oil changes used Penzoil Semi-Synthetic or Full Synthetic.
Most trips are 11 to 13 miles or more. This last weekend I drove it 650 miles for a college visit. I haven’t notice any changes in driveability or performance.
The 2.4 does not have a PCV valve. There is a vent hose from the intake manifold to the air intake between the MAF and the throttle body. I was considering a Seafoam treatment for the intake to clean the valves. I’m not sure whether to add the Seafoam directly to the intake manifold through the vent hose or adding it to the air intake to be pulled into the manifold through the throttle body. Either method will keep the MAF out of harms way. I’ve used the Seafoam treatment on my older vehicles with no issues, but I am a little nervous doing it on a newer vehicle. I will use Seafoam spray or CRC GDI Intake Cleaner (if available).
I will go back to Penzoil for the next oil change and closely monitor the oil level. Any suggestions or thoughts would be appreciated.