Joey, you should pull a sample of oil from the engine after running it for 10 minutes. It will also be dark. Why? 10-20% of the old oil will remain in the engine and not drain out in modern engines. I have done this many times and had a lab test the oil and it confirmed the same percentage. You can ask BlackStone labs and they will tell you the same thing. Do a double oil change and then go your full oil change interval. Your oil will last longer, and stay much cleaner and protect your engine better. Common sense is not so common these days. What happened to the oil sample test you did in January, have not seen a video results. Is it still showing high copper levels from the engine flush.
This is an interesting idea. I'll keep checking in!
Dark oil doesn't mean it's dirty, oil get dark mainly from boiling
And tells you the detergents in the oil are working.
If you truely want to know about your oil then send it to a lab.
Joey, you should pull a sample of oil from the engine after running it for 10 minutes. It will also be dark. Why? 10-20% of the old oil will remain in the engine and not drain out in modern engines. I have done this many times and had a lab test the oil and it confirmed the same percentage. You can ask BlackStone labs and they will tell you the same thing. Do a double oil change and then go your full oil change interval. Your oil will last longer, and stay much cleaner and protect your engine better. Common sense is not so common these days. What happened to the oil sample test you did in January, have not seen a video results. Is it still showing high copper levels from the engine flush.