[1986nate]

Also, 91,92, and 93 or higher octanes all seem to make a difference in my experience. One time I used 91 octane, non ethanol and ended up getting about 25 hwy with my laguna. Typically with 93 octane with a 10% ethanol blend, I would easily see over 30mpg. Same driving conditions. Hwy with cruise control and a/c on.