ARX-still cleaning after second oil change?

Messages
46
Location
canada
HI...I am a little bit puzzled as to why my oil is black after only 3000kms into my second oil change after the arx clean. Keep in mind I have a 5.4l V8 f150 that has never seen black oil on the dipstick, not that I'm worried at all but after years of oil changes i have only observed dark amber colors after 5000kms or more on my engine. I have heard of people stating about dramatic cleaning during the first rinse cycle, but my experience it seems to be happening on the second one. Can I ask if this is normal for the slow cleaning that is stated on the bottle? BTW I was using Castrol GTX 5w20 before, during, and after the treatment, does the GTX have a different affect compared to other dinos?
 
Messages
897
Location
owatonna, mn
So you're in the middle of the second rinse? It's perfectly normal to have dark oil then. Heck, it will be normal to have dark oil on the first interval after the rinse! Sometimes, it's still rinsing.
 
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