I started using eco mode in my Civic last fall and it made a very noticeable difference in fuel economy! I was previously averaging 5.4L per 100km during all of the spring and summer months, and since my last oil change 12,000km ago, and through the winter months as well, I'm at 5.1L per 100km average! So that means it went from 43.5 MPG to 46.1 MPG, doing the same driving route but with colder weather! Yes we had a very mild winter here, but it was still colder than what I was experiencing in the spring and summer. I see no detriment to using it on this car, it's a naturally aspirated and port injected 2.0L engine, so LSPI is not going to be an issue.