6.0L gas, owners, fuel milage?
#31
SeaRay Sundancer
![](https://www.offshoreonly.com/forums/images/icons/gold_member_star.gif)
Join Date: Nov 2005
Location: SW Missouri
Posts: 2,914
Likes: 0
Received 0 Likes
on
0 Posts
![Default](/forums/images/icons/icon1.gif)
The factory brakes on 20" rim equipped trucks are just fine. They have been equipping and selling them that way for yrs. I would suspect a particular issue with his trucks breaks. I have wide 18's and fat rubber that I bet has more rotating mass than 20's and skinnier rubber. I have pulled 7500+/- for 2.5 yrs now and not one break issue in 33k miles. Im not slamming on the breaks but i have had a couple of close calls and they stopped my in time. My v-max has been getting a computer calculated rolling average of 13.2-13.8 mpg. Around town its like 8-9 mpg in stop and go. You will be fine with a stock truck. One thing on the avalanche.....they bed is too narrow to do most full size truck chores unless you have a utility trailer. A golf carts wheels etc just wont clear the bed covers sliding rail. Get the full size quad cab short bed. Deminsionaly outside about the same, but quite a bit more usable bed room. You cannot light up the tires on any stock GM truck w/o powerbreaking 'em or finding a wet or sandy patch.
Last edited by tblrklakemo; 01-03-2008 at 11:23 AM.
#32
instigator
![](https://www.offshoreonly.com/forums/images/icons/platinum_member_star.gif)
Join Date: May 2003
Location: Miami, Fla
Posts: 1,420
Likes: 0
Received 0 Likes
on
0 Posts
![Default](/forums/images/icons/icon1.gif)
ymmv
#33
SeaRay Sundancer
![](https://www.offshoreonly.com/forums/images/icons/gold_member_star.gif)
Join Date: Nov 2005
Location: SW Missouri
Posts: 2,914
Likes: 0
Received 0 Likes
on
0 Posts
![Default](/forums/images/icons/icon1.gif)
those are great numbers....when you reset your computer what do you get around town?
#34
Registered
Join Date: Apr 2003
Location: Lake George, NY
Posts: 348
Likes: 0
Received 0 Likes
on
0 Posts
![Default](/forums/images/icons/icon1.gif)
C'mon BRET. You could put a 6.0 on a go cart and never get 19 mpg. Even your average of 15 mpg is unrealistic. I have at least 5 friends with 05 and up 6.0 trucks, none of them ever get above 13 mpg anywhere, even on the highway.
Even the 5.3 half tons suck gas like crazy. They're all pigs. Those little 5.3's are pretty responsive though. As someone said, you can light the tires up all day long.
Even the 5.3 half tons suck gas like crazy. They're all pigs. Those little 5.3's are pretty responsive though. As someone said, you can light the tires up all day long.
I just telling you what my computer readout says. Maybe its off, but I do most of my driving on the highway. Last summer was just afer I broke it in and havn't seen it since. Mine gets better mileage than my brothers (5.3) 07 Avalance. Maybe I got a freak motor.
#35
Registered
![Default](/forums/images/icons/icon1.gif)
The factory brakes on 20" rim equipped trucks are just fine. They have been equipping and selling them that way for yrs. I would suspect a particular issue with his trucks breaks. I have wide 18's and fat rubber that I bet has more rotating mass than 20's and skinnier rubber. I have pulled 7500+/- for 2.5 yrs now and not one break issue in 33k miles. Im not slamming on the breaks but i have had a couple of close calls and they stopped my in time. My v-max has been getting a computer calculated rolling average of 13.2-13.8 mpg. Around town its like 8-9 mpg in stop and go. You will be fine with a stock truck. One thing on the avalanche.....they bed is too narrow to do most full size truck chores unless you have a utility trailer. A golf carts wheels etc just wont clear the bed covers sliding rail. Get the full size quad cab short bed. Deminsionaly outside about the same, but quite a bit more usable bed room. You cannot light up the tires on any stock GM truck w/o powerbreaking 'em or finding a wet or sandy patch.
#36
Registered
![Default](/forums/images/icons/icon1.gif)
You cannot go off the DIC. You have to hand-calculate your numbers over more than just one tank of fuel. The DIC's are usually like boat speedometers...a little happy.
#37
SeaRay Sundancer
![](https://www.offshoreonly.com/forums/images/icons/gold_member_star.gif)
Join Date: Nov 2005
Location: SW Missouri
Posts: 2,914
Likes: 0
Received 0 Likes
on
0 Posts
![Default](/forums/images/icons/icon1.gif)
Brakes are working as designed. Keep in mind the further out from the hub you place the weight, the bigger an issue this becomes. 20's place the weight out further than 18's. Also, look into when GM started offering 20's as optional equipment on their 1/2 ton trucks and SUV's.
I would bet that total wheel and tire weight given the current CAD designed factory alloy wheels GM has would probably be about the same regardless of 17-20's. They probably are mindful enough when designing them to keep most of the mass as close to the hub as possible if they are going to bump rim size up. I dont think they would offer, from the factory, a wheel that dramatically reduced stopping distance or break life. Just a guess. Hell, everybody has 20's now as OEM stuff.
#38
Registered
Thread Starter
Join Date: Dec 2003
Location: Ottawa, Ontario,Canada baby!
Posts: 1,566
Likes: 0
Received 0 Likes
on
0 Posts
![Default](/forums/images/icons/icon1.gif)
Brakes are working as designed. Keep in mind the further out from the hub you place the weight, the bigger an issue this becomes. 20's place the weight out further than 18's. Also, look into when GM started offering 20's as optional equipment on their 1/2 ton trucks and SUV's.
#40
Registered
![Default](/forums/images/icons/icon1.gif)
Brakes on my 03 108K mile 2500 CC DD are original with 75% local miles and probably 10K in highway towing my 32 Sunsation. I would bet I have another 25K in meat left on the pads.
My 4 other trucks (all GMC from 4.3s to 5.3s) need pads at 40-50K miles but that is with employees driving the tires off them I am sure!
My 4 other trucks (all GMC from 4.3s to 5.3s) need pads at 40-50K miles but that is with employees driving the tires off them I am sure!