I am about to begin my oil changes outside the dealership, as suggested on this forum. My 2014 diesel is just over 2 years old, 38k miles, and it's had over 10 CEL's, all (except 1) occurring in a string right after oil changes at the dealership. It's always due to soot. I've had my 02 & NOX sensors replaced several times, ducts replaced, ECM reprogrammed, etc. I can't say 100% for certain, because correlation is not always causation, but I feel like there is something wrong with the emissions system in this car that gets flared up when ever it goes into the dealership for oil changes. I guess I will find out once I start taking it elsewhere for oil changes! 75% of my driving is highway, so city driving is not the problem. I will also state, because the paperwork doesn't say that I cant, that I received a settlement from GM over all this. This next oil change will determine if I give up and sell this car. I can't do the oil changes myself. I am a young, urban, garage-less female with no car experience. I've never even opened the hood myself. If I had a heated garage I'd give it shot, but I don't. Thankfully I purchased the 100,000 mile extended warranty (for $1600) with $0 deductible, so I'm not too worried about future problems, but the constant trips to and from the dealer are time consuming and emotionally exhausting, coupled with the "maybe we'll give you a loaner" issue.
So on to my question! I called the Oil Express near my house, and they carry Dexos2 oil but not the filter, they said I could bring my own filter. I found the filter part link on this forum and have several in my shopping cart on gmpartsnow.com. Since this oil change will determine my future with this car, I want to put in the best oil. I figured I could bring the filter AND oil over to Oil Express. From reading the forum, the most recommended is Mobil 1, 5w30. However, when ever I follow the link or look it up, the bottle says its for gasoline engines and its dexos1. What's up with that? Which is the best oil to buy? I'm hoping using high quality oil will solve the miserable CEL problems that have been occurring after oil changes. Thanks!
So on to my question! I called the Oil Express near my house, and they carry Dexos2 oil but not the filter, they said I could bring my own filter. I found the filter part link on this forum and have several in my shopping cart on gmpartsnow.com. Since this oil change will determine my future with this car, I want to put in the best oil. I figured I could bring the filter AND oil over to Oil Express. From reading the forum, the most recommended is Mobil 1, 5w30. However, when ever I follow the link or look it up, the bottle says its for gasoline engines and its dexos1. What's up with that? Which is the best oil to buy? I'm hoping using high quality oil will solve the miserable CEL problems that have been occurring after oil changes. Thanks!