Since gas prices have gone so high I believe its time to start looking into mods and hypermiling tecniques.
I know the doors of the cobalt are really heavy does anyone know what kinda changes you can make to that? any other weight reductions?
What about mods for boost your milage?
Here are some tecniques ive learned:
-Fill tires to max
-use mobil1 0w-30
-drive the speed limit
-act like there are no brakes
-take it easy going uphill and glide when going down
-put car into neutral and shut it off at lights
Fill your tires to the max is a HORRIBLE idea. Fill them to the recommended level and that's it. make sure they are all the same and if you really want fill them with nitrogen. It will help a little. Were talking 1% gain max.
Synthetic will help, you don't really need 0 weight though. In fact it might be a little too light for a daily driven non performance car. It won't hurt but 5W-30 is just fine.
If in a manual, engine brake your heart out. When you are engine braking the injectors stop injecting which saves you a fortune in gas. For those with an interceptor put it on the instant fuel economy setting and engine brake. Watch it go off the charts.
Don't shut the car off. While shutting it off will help a little for long periods at lights it's pointless and you are putting extra wear on the engine, cooling and ignition system by continually stopping and starting it.
I can't speak for GMs direct injection system but I know BMWs has crank, cam, and other sensors that allow the car to uses a very minimal amount of fuel on start up. Literally you hit the key and it starts because the system finds which cylinder has the best conditions for ignition and it first fuel into it only until the car starts. It's pretty cool. I would imagine the other auto makers are hot onto that system as well.
A big key to better fuel economy is weight. Lose as much as you can. Take out the crap in the trunk, your cds, the rear seats and brackets, subs etc etc. Hit the gym if you are hefty like me.
Every lb you shed from the car equals better economy.