Thread: How do I get better MPG on my 05 gt2?

How to get good gas mileage:

• Fresh iridium spark plugs every 100,000 miles
• Fully-inflated tires
• Aluminum lower intake manifold gasket - if you don't have this, the nylon stock ones eventually warp and you burn coolant, lowering mpg.
• Clean throttle body
• Clean maf sensor
• "hot air" intake - for you, it's a 9" dry (not oiled) cone strapped to your maf sensor tube, air box removed. Leave the MAF screen in - it's necessary.
• Maybe headers
• Keep your foot out of the throttle
• Emptying your junk out of the car

Things that will get you worse gas mileage:

• Believing that guy your dad knows is a mechanic
• A chip
• A tornado
• Magnets
• Any other snakeoil junk you've heard of

Originally Posted by smitz327

Don't fall in to those chips on eBay, JUNK! Also a cold air intake doesn't do any good at all besides make your car sound different. I really think it depends on your car, they all get different gas mileage. I have a 2000 GT Coup with a cold air intake and I get maybe 28 highway according to the DIC which isn't the best to go by then again I have a 2002 Grand Prix GTP Coup and get 30.6 highway and roughly 460 miles to the tank full. Here is the photo of the air filter I just took out the black GTP, its hard to believe its been doing this good on mileage.

I bet it felt like you just supercharged it after replacing that thing!