i agree with m477.... puttin on welds made a huge difference

 

Tire pressure is HUGE. Also as important is making sure the car is running as optimal as possible. Good plugs, wires, O2's, fuel filter, PCV, air filter, as well making sure there's no carbon build up.

As said driving habit is the biggest.

Some other ideas are to reduce drag. If you have a Camaro with a tacked on spoiler (SA package) or F1 wing, it's time for it to go. Those have been proven to reduce a 1/4 mile time by 2/10ths.

 

Imagine going green by having a huge spinnaker mounted from a mast to the T. You could even get Pontiac to sponsor ...never mind.

 

buy a smart car

 

ive seen better highway returns with my car lowered...

 

Laying off the gas in our cars is really the best way to go

 

According to Mythbusters last night you need to do the golf ball mod! 11% gain.

 

!Lead Foot Mod FTW.

 

I loved the mythbusters mod. They put modeling clay all over the car and dimpled it like a golf ball. Mileage went from 26 to 29 mpg. Lol. The best mod I can tell you besides putting a pedal stop behind the gas pedal to keep you from flooring it would to either do a 6 speed swap, put a gear vendors over/ under drive unit in( it has the same double overdrive as a 6 speed but you can still use your automatic), or put higher ratio gears in like 2.73 or 3.08 gears.

 

underdrive pullies too

 

Forreal?? You usually don't buy these cars worried about fuel mileage....I bought a cobalt ls to compensate....43+ mpg on the freeway!! I've seen forty eight before lol. So get another car for a dd or whatever or invest in a for sale sign as others have already stated. Not being a dick but thats the truth.

 

If you want to KEEP your gas mileage then don't hang out on this board!

 

The lighter shoe mod !!!! I drive mine like a grandma around here locally to save on my gas milage!! <<< now that i think about it ... I lie. I atleast try to ....

 

More air in and out is what i was always told I'm averaging 26 on the highway now with my mods.

 

Agreed.

 

An alingment will help as well. Set the tow to 0 degrees or -1 at most.

 

i am very happy with the mpg with a 6 speed nonetheless....if i kept my foot out of it I was in the 28mpg range on the highway allday....now with a cam and 4.10's I am not sure, but I KNOW ONE THING it sure as **** beats driving a 5speed mustang...

 

My friend, are you feeling okay? camaros don't do that, that's why you buy a honda . We have them to make them go fast lol

 

I bought my Camaro for gas mileage, but thats because my 4x4 gets like 14 on the highway!

Everyone says that lid, filter, exhaust, etc gets better mpgs, and that may be true but it also gives power so it makes you want to step on it more. And as soon as you do that it also burns more gas when it is opened up so that just defeats the purpose. So if you can stay off the gas then I guess it works, good luck with that!!

But definitely weight reduction and driving habits will make the most difference. The beater mod is nice because it cuts down on miles of the car you care more about.

 

In theory, I'm going to disagree about exhaust improving gas mileage.

If the exhaust is flowing better, that means you will have less backpressure and more scavenging. That means a higher percentage of the exhaust gasses will be drawn out, meaning it will need to pull more air into the cylinder to fill it back up on the intake stroke. More air means more fuel, more fuel means lower gas mileage.

I don't know if it would have a real negative effect on gas mileage, but I don't see how it would improve it.