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GMC 1500 AT4 3.0L Duramax Turbo Diesel engine

Discussions specific to the GMC AT4 3.0L Duramax Turbo Diesel engine
JimP
New shocks on 3.0 liter, AT 4
Replies
10
Views
614
The_DJH
The_DJH
F
Oil change .... sticker or use oil percentage on dash?
Replies
10
Views
393
MeatMonsterAT4
MeatMonsterAT4
K
Block Heater Question
Replies
14
Views
5K
J00d0kick
J
Colorado Kid
Stereo sound
Replies
7
Views
375
sloopdawg
sloopdawg
D
Fuel Mileage Questions
Replies
9
Views
2K
RebelDS
RebelDS
M
‘23 AT4 3.0 Coolant leak/burp
Replies
9
Views
459
muddernuker
M
W
DEF gage problem
Replies
13
Views
628
pinebaron
pinebaron
L
Is a Cai worth the effort?
Replies
7
Views
729
kinghorn4335
K
J
Rislone DEF additive
Replies
6
Views
2K
SmittysAT4
S
K
Engine exhaust cleaning
2
Replies
29
Views
2K
Waterfowler
Waterfowler
EdgerlyB
Air Intake
Replies
5
Views
2K
hdrolling
hdrolling
W
OBDLink
Replies
8
Views
591
why_rick
W
J
2025 Duramax Diesel - COLD Below Freezing Temperatures Preparation
2
Replies
19
Views
1K
Clarkely
Clarkely
T
Oil drain plug 3.0 Duramax
Replies
8
Views
2K
Thunderstormgrey53
Thunderstormgrey53
K
Not many locations selling Low sulfur Diesel
2 3
Replies
34
Views
2K
Don S
Don S
D
2025 3.0. Diesel AT4 Oil change.
2
Replies
15
Views
5K
gemarsh
gemarsh
S
Def consumption with regular driving
Replies
11
Views
971
SmittysAT4
S
JimP
Flush tranny at 30K with AMSOIL?
Replies
4
Views
498
jonlsu
J
D
Engine Trouble
Replies
1
Views
330
gemarsh
gemarsh
ivey_usmc
S&B intake filter question
Replies
9
Views
2K
D Owens
D
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