Chevy/GMC Trucks
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GM 6.0 LITRE GAS ENGINE



Lorren Matiuk

 
Joined: 5/19/2001
Posted 3/22/2010 via Website

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Just wondering does anybody run the gm 6.0 gas engine as a daily driver? Just wondering are they thristy for the fuel what can be done to them to help besides staying out of the gas pedal.Any bad things a guy should know about this engine?
Mater

 
Joined: 4/27/2009
Posted 3/22/2010 via Website

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Edited: 6/2/2010 8:22:12 PM by Mater Not a terrible engine. Biggest problems they had was burning oil and leaking oil from the rear timing cover. Chevrolet says that 1qt every 1000 miles is normal consumption. My problem is that no amount of cosumption is normal in a properly broken in gas engine below 75k miles.   
wesley stewart

 
Joined: 1/28/2005
Posted 6/2/2010 via Website

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i swapped my 5.3 out for a 6.0 prolly 6 months ago and i love it. .dependin on how i drive it 18-20mpg and mine is a cam truck with all bolt-ons. .im not tryin to prove anyone wrong but i've never had a bit of oil usage from mine
Uncle Fester

 
Joined: 4/12/2005
Posted 6/2/2010 via Website

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My buddy put a 6.0 in his sons reg cab truck and it gets and has descent gas mileage.  Good engine just take good care of it.
harlan bates

 
Joined: 1/7/2003
Posted 6/2/2010 via Website

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18-20??? Really??? I have a 2002 extended cab and around town I'm lucky to get 12 mpg. On roadtrips I can expect 16 mpg's. Is it because mine is an older motor, it has 114k on it. But it runs great and I haven't noticed a bunch of oil burning. -Stew-
James Victory

 
Joined: 6/27/2009
Posted 6/2/2010 via Website

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My buddy has a 6.0 in his '04 extended cab. Custom ground Comp Cam, long tube headers, Procharger and few other things and he gets about 15-17 in town.
Brian Rose

 
Joined: 1/8/2009
Posted 6/2/2010 via Website

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I have a 6 liter in my trailblazer and get 18 - 20mpg on average, even with the 4.10 rear.
Bret Holmer

 
Joined: 1/13/2004
Posted 6/2/2010 via Website

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wow i need to do a 6.0 swap, thats better gas mileage then my 4.8 5 speed.. i get like 17-18 and 20-22 on road trips
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