'08 WRX with 8000 miles.
I just got my 3rd oil change done at the Valvoline place I always go to. 5w30 and I was right at the 3000 mile mark since my last one. Drove home about 20 miles, let it cool down some and then I used a 1/4 hose and siphoned out 1/2 a quart through the dipstick tube so I could put in some slick 50* and I was astonished at how black the oil was.
Maybe I was siphoning off the bottom of the pan? So I blew bubbles until the tube was just out of the oil and then lowered it 1 inch and started siphoning again. Still pitch black.
It was clean looking, just really really dark, almost like that el-cheapo recycled oil you can by at some gas stations.
I saved the oil and took it back to the Valvoline place to show the guys and they went out of their way to assure me that they do not use recycled oil and they changed my oil again at no cost. They said it got black due to the turbo. But 20 miles? I didn't get on it either, just drove normal.
Anyone know if the WRX turbo turn oil dark that fast?
I'm going to take some out again tonight and finish off the bottle of slick 50.
*Slick 50 is snake oil!... yes yes I know, BUT it has been super cold here (single digits) and every once in awhile if the car has been sitting outside in the cold, the turbo makes a loud whining sound just for a second when I first start it. My hope is the slick 50 might help reduce that. I know it help cold starting in other 4 cylinder engines I've had.