-No milky substance in radiator or oil. -The coolant reservoir was low, but I just bought this and was the first time I had checked it. The radiator was still full of coolant. -Spark plugs don't look that bad. No gunk/build-up. No signs of any coolant anywhere. Changing them today though. -Cleaned the MAF -Cleaned the throttle body. -CEL came on but after battery disconnect, hasn't come back more