2010 Scion XB
I changed my oil recently, after it was changed the new oil came out black on the dipstick. I was told that my engine is dirty and that I should use Royal purple to clean it. I change my oil every 5k miles. MY scion has 157k miles. I was previously using synthetic blend I suspect sludge is bulding up?? I would like to know what your opinion is. I appreciate your feedback. Thank you.
the new oil came out black on the dipstick.
Did you warm up the engine before draining the oil? Did you use the oil pan drain plug, or a suction device? Did you let it drain all the way?
If yes, then it's probably just old oil stuck in the dipstick tube. Dip and wipe several times to get a more accurate reading.
use Royal purple to clean it.
snake oil
I change my oil every 5k miles.
perfect
I suspect sludge is bulding up??
I can't see why, unless something is contaminating the oil (fuel, water, etc.)