4.8l vs. 6.0l GM Fuel mileage

Welcome to our Community
Wanting to join the rest of our members? Feel free to sign up today.
Sign up

RoyS

Active Member
May 26, 2011
607
45
28
43
Real Name
Roy Sanders
#1
How much more fuel does the 6.0 use over the 4.8. I am looking at a 3500 extended with a 6.o in it.
 

johnp94

Premium VIP
May 11, 2010
2,001
431
83
San Diego
Real Name
john
Business Location
United States
#2
I have no idea about the fuel consumption. But if you will have a Truck mount and fresh water tank I recommend the 5.3 liter or the 6.0 liter. I have 5.3 liter truckmount van and it has great pick up no matter the weight i'm pulling.
 

GRK STL

Well-Known Member
Jun 6, 2012
653
362
63
41
Real Name
Bob
Business Location
United States
#3
I would never choose the 4.8 in a 3500, the weight alone with a truck mount and it would struggle. It would probably burn more gas cause of that. The 6.0 has been put in GM's pick ups for years and been a proven work horse. This is what I have in our 3500 extended. The Difference in gas burning will be minimal compared to maintenance cost of repairing a beat 4.8
 

RoyS

Active Member
May 26, 2011
607
45
28
43
Real Name
Roy Sanders
#6
I just wasn't sure how they were in the vans. I have an 03 crew cab 2500hd 4x4 with the 6.0l and it doesn't do that good on mileage. It will however pull pretty much anything you want. I once had to pull a two ton grain truck loaded with corn about 4 miles to the in-laws farm. It was a load on the truck but it managed with no issues.
 

Hoss4x4

Active Member
Sep 25, 2011
680
133
43
Real Name
Dennis Graham
Business Location
United States
#7
Weight to engine ratio the 6.0L is a great choice.