[MediaMike19063]

Hey guys and gals! I'm having a small issue with the "new" '06 GT I just bought. I do a fair amount of driving throughout the week. Roughly 20 mile round trip to work alone, not including small day trips into the city which is highway. The first week I had the car I exclusively drove highway to get a great feel for what the car was all about and BLEW threw a full tank of gas in a week! I only got around 250 miles to the tank....does this sound accurate? The fuel meter was reading 19.7 on the highway last night...my old 95 3000gt that has bad wires and plugs gets better mileage than that....any thoughts?

Thanks in advance boys and girls!

Mike

 

[waterfowler76]

i get a little over 300 per tank driving about 75% highway, but i also get alot of traffic driving home....and it reads about 22-23 mpg

 

[AmandaWI]

I get like 420 per tank, and get about 25-26 miles per gallon.

 

[gxp owner]

I just got 33.5 with my GXP on about a 60 mile trip. I drove the speed limit and really babied it.

 

[kcolgan]

Going 75 on the highway i average 33.
Normally getting around 25-28

I get 336 in a tank of gas.

I also have a 2008 though.

 

[Abyssul]

Your G6 may need a tune up since it is 6 years old. 250 miles on a tank of gas is not abnormal, but definitely sub-par. You can try a list of these:

-Check/change spark plugs
-Use full synthetic oil next oil change (I prefer Mobil 1)
-Use Chevron Techron Concentrate Plus fuel additive every 3,000 miles
-Use Seafoam on crankcase and vacuum tube every 5,000 miles
-Change your engine air filter to a better quality
-Make sure your tires are inflated to 30 PSI (after not driving it for 5 hours)

I get ~300 miles on a tank of gas or 22-23 MPG which is every week. Just because you drive on a highway doesn't mean it is considered "highway" driving. On my way to work I use the highway, but I run into 15 different lights on the way and that doesn't count school buses and just "in-general" traffic.