I've started doing some surf fishing (standing on the beach and fishing) instead of taking out my old fishing boat. Buying gas on the water is .50 - $1 more than on land for some reason. Other than that things are business as usual.
I've been keeping pretty good gas records from my 2005 Wrangler (4.0 and auto), and I'm getting 13.635 MPG (this is an average of my last 30 tanks of gas).
I've orderd a
throttle body spacer, and plan on getting a cold air intake - hopefully I can get that up some.
As to 4 bangers, there are alot of guys here that have them and are very happy. I think they do fine on the trails, but don't quite have the get up and go on the interstate. Here's some MPG data for a 2005:
Annual Fuel Costs and Greenhouse Gas Estimates are based on 45% highway driving, 55% city driving, and 15000 annual miles.
Assumed Fuel Prices: