With my last oil change I started to use a full synthetic oil(5W30) in my 2010 HHR. The oil indicator shows I still have 29% oil life but the check engine light has come on and the code is P0010. Wh

Asked by Oct 04, 2016 at 06:12 PM about the 2010 Chevrolet HHR LT2

Question type: Maintenance & Repair

Can changing to a full synthetic oil(5W30) cause slug to build up in the
engine. I am getting 23.8 MPG's around town and 33.6 MPG on the highway.

4 Answers

64,205

Full synthetic should not cause any problems.

50

P0010 "A" Camshaft Position Actuator Circuit (Bank 1). You're fine with Synthetic, I always use it, and my 2006 is now on high mileage synthetic.

1 people found this helpful.

Use the grade specified by the factory. Synthetic will not build sludge.

103,845

Your gas mileage is quite good in my opinion.

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