2013 Honda crv 1,000 miles, mostly driven in town short trips with the occasional 45-50 mile round tripper. Vehicle is driven by my wife who is very conservative on the gas pedal. When checking the oil I've noticed a black mark left on the rag. Is this normal with a new vehicle? The oil seems fine. I'm also torn on the whole FF debate. Should I go syn blend for a couple oci or straight to full syn? 2007 Honda accord, 4 cyl, 101k miles. New to me at 95k miles. Driven 45 miles round trip to work, 90/10 highway to city. I changed the oil at 100k with the MM showing 50%. My peace of mind wouldn't allow me to go further. Immediately upon start up I noticed a brief rattling sound which I had never heard before. I'm on my 4th filter hoping to find the root of this noise. PP 5w/20 is what I put in. Any ideas? Just looking for some advice.