Can anyone explain how on my second oil change, a couple weeks later I was about a half a quart low? I just changed the spark plugs and fuel filter.
What happened when I noticed was that my engine light came on. It ended up being ECU: 0415 which is a Left B2 Oxygen Sensor. But I had checked the oil before that (cause I'm used to older domestic cars).
If you have any ideas let me know.

 

Did you just go to synthetic ??

 

No this was after my second synthetic oil change. I did all the oil changes with synthetic after I bought the car a couple of months ago.

 

It might be too early to tell...your engine is still getting used to the synthetic.
synthetic is very fine and very very slippery...My engine didnt used oil yet but I only did one oil change since I changed to synthetic
Your best bet is to add some and see if the loss goes away

 

Sounds good. I didn't lose any after the first change, but I'll just keep watching.

 

Check all over the pan too. Make sure there is not a very small leak from a rock chip or anything. Sounds basicl but sometimes if the leak is slow enough it will leak but not even stain your driveway or what not.

SuDZ