CK5 Network
Repairing, restoring or modifying your ride just got a whole lot easier!

CUCV QUESTION

uao85

1/2 ton status
Joined
Jan 2, 2004
Posts
1,867
Reaction score
1
Location
Edge of insanity
I was wondering what kind of mileage the military chevy trucks get with that 6.2 liter diesel they have.
 

dremu

Officious Thread Derailer
GMOTM Winner
Joined
Feb 27, 2000
Posts
16,370
Reaction score
1,120
Location
East of San Francisco
They're geared funny, too -- 3.08:1, as I recall... leastaways I'd consider it funny, being a gas person; maybe that's not odd with the relatively high torque from the diesel.

Might post in the diesel forum here, see whatcha find.

-- A
 

smokkey1

1/2 ton status
Joined
Jan 7, 2004
Posts
2,677
Reaction score
2
Location
Los Angeles, CA
I thought they were geared at 4:10 or 4:56 /forums/images/graemlins/dunno.gif


justin /forums/images/graemlins/burb.gif
 

tRustyK5

Big meanie
Staff member
Super Moderator
Moderator
GMOTM Winner
Author
Joined
Jul 23, 2000
Posts
40,558
Reaction score
10,269
Location
E-town baby!
M1009 (Blazers) had the 3.08's and a TH400 with 31" tires. Cruise rpm at 65 mph would be 2200 rpm or so and the mileage would be in the 17-19 range. The M1008 (K30) had 4.56 gears and ~31" tires with the TH400 as well. Cruise rpm at 60 mph would be a very loud 3000 rpm. Mileage on that would be 13-15.

The sweet spot for mileage with a 6.2 is ~1900-2100 rpm...much beyond that and mileage falls off a fair bit.

Rene
 

mud390

1/2 ton status
Joined
Oct 31, 2002
Posts
1,210
Reaction score
0
Location
Little Rock, Arkansas
I can't really say as far as highway miles. We never really got the ones we used above 35MPH. Except for that occasional midnight high speed check. /forums/images/graemlins/shocked.gif The ones we had did have 3.08 gears in them, which seemed odd to me too, but it worked. It seemed like we could go about week before having to fill up. The Blazer had a 32 gallon tank. Pretty much all we did was drive around in circles, back and forth between building, and idle. Hope that helps a little. /forums/images/graemlins/tongue.gif

Kris
 

grd2go

Registered Member
Joined
Mar 28, 2004
Posts
55
Reaction score
0
Location
Anchorage Ak
The 1 ton military trucks either have 4:10 or 4:56 gears in the last 8 of them that I baught the milage with the two that were in running condition always got better than 12 mpg and on highway one of them got 17 mpg with 35s on it. The one with 4:10 gears have all been the airforce crewcabs. I still havent picked my last green chevy out at base but it is a one ton dually so it might be different.. /forums/images/graemlins/crewcab.gif /forums/images/graemlins/k5.gif /forums/images/graemlins/cool.gif
 
Top Bottom