I don't know about any of this stuff, but I'm very disappointed in my car. I know it's only 4 cyl. but I expected better gas milage than what I'm getting. Have only been out on the freeway a few times since
it's a new car and I'm told to break it in easy. So I vary my speed and watch my rpms.......but, with less than 500 miles on it it's getting horrible gas milage. My other car gets better around town and it's an 8 cly.
Maybe it will do better as it gets more miles on it, but right now I wish ..........
