Vortec Max 6.0
Thread Starter
Staging Lane
Joined: Sep 2010
Posts: 62
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Vortec Max 6.0 Hey I just bought a 2007 Chevrolet 1500 4x4 with the 6.0 Vortec Max in it and the gas mileage sucks! What do I need to do to get better fuel economy? 
I am going to put Granatelli wires on it this weekend that I am robbing off of my jeep. What about a PCM tune? Who is the best? Thanks for any help!
I am going to put Granatelli wires on it this weekend that I am robbing off of my jeep. What about a PCM tune? Who is the best? Thanks for any help! Thread Starter
Staging Lane
Joined: Sep 2010
Posts: 62
Likes: 0
did the same thing on my truck. unfortunately no matter what you do the gas mileage will still suck. at least thats what i found
Thread Starter
Staging Lane
Joined: Sep 2010
Posts: 62
Likes: 0
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I have a 08 VMAX ECSB 4x4 with 3.73s and factory 20s. It has a Corsa Touring catback, Blackbear tune, and is lowered 2/3. I am currently getting 16-17 in normal driving and 19-20+ on the highway.
Thread Starter
Staging Lane
Joined: Sep 2010
Posts: 62
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ECSB is extended cab short bed. There used to be 3 bed lengths: short, standard, and long. If you look at the GMT900 forum in Performance Trucks (tab the the top of this page) there is all kinds of good info about our trucks.
Blackbear can be reached here http://www.blackbearperformance.com/
Blackbear can be reached here http://www.blackbearperformance.com/
Registered User
Joined: May 2014
Posts: 1
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Help with gas We have the same kind of truck and we sell hydrogen on demand systems. We were getting 12 mpg, now we are getting 26-34 mpg no joke and it upped our horsepower to 40% more, you use only 2 cups of water per 1000 miles and won't void warranty or hurt the engine it will help it and keep the engine clean. We can help you if you want to see the system please email us at. therebelpipers@outlook.com talk to you soon.
