Specifications Comparison: 2003 Chevrolet Silverado 1500 vs 2024 GMC Sierra 1500

Gas Mileage

Trim	Eng.	Drive train	MPG City	MPG Hwy	MPG Combined
Extended Cab	V6	RWD	15	20	17.5
Extended Cab	V8	4WD	10	12	11
Extended Cab LS	V6	RWD	11	12	11.5
Extended Cab LS	V8	4WD	10	12	11
Extended Cab LT	V8	RWD	11	12	11.5
Extended Cab LT	V8	4WD	10	12	11
Regular Cab	V6	RWD	15	12	13.5
Regular Cab	V6	4WD	10	12	11
Regular Cab LS	V6	RWD	15	12	13.5
Regular Cab LS	V6	4WD	10	12	11

Trim	Eng.	Drive train	MPG City	MPG Hwy	MPG Combined
Denali Crew Cab 147"	5.3L V8	RWD	16	21	19
Denali Crew Cab 147"	5.3L V8	4WD	15	20	18
Denali Crew Cab 157"	5.3L V8	4WD	15	20	18
Elevation Crew Cab 147"		RWD	18	22	20
Elevation Double Cab 147"		RWD	18	22	20
Elevation Crew Cab 147" w/3SB		4WD	17	20	19
Elevation Crew Cab 147" w/3VL		4WD	17	20	19
Elevation Crew Cab 157"		4WD	17	20	19
Elevation Double Cab 147" w/3SB		4WD	17	20	19
Elevation Double Cab 147" w/3VL		4WD	17	20	19
Pro Crew Cab 147"		RWD	18	22	20
Pro Double Cab 147"		RWD	18	22	20
Pro Reg Cab 126"		RWD	18	22	20
Pro Reg Cab 140"		RWD	18	22	20
Pro Crew Cab 147"		4WD	17	20	19
Pro Crew Cab 157"		4WD	17	20	19
Pro Double Cab 147"		4WD	17	20	19
Pro Reg Cab 126"		4WD	17	20	19
Pro Reg Cab 140"		4WD	17	20	19
SLE Crew Cab 147"		RWD	18	22	20
SLE Double Cab 147"		RWD	18	22	20
SLE Crew Cab 147"		4WD	17	20	19
SLE Crew Cab 157"		4WD	17	20	19
SLE Double Cab 147"		4WD	17	20	19
SLT Crew Cab 147"	5.3L V8	RWD	16	21	19
SLT Crew Cab 147"	5.3L V8	4WD	15	20	18
SLT Crew Cab 157"	5.3L V8	4WD	15	20	18
AT4 Crew Cab 147"	3.0L I6	4WD	21	23	22
AT4 Crew Cab 157"	3.0L I6	4WD	21	23	22
AT4X Crew Cab 147"	3.0L I6	4WD	19	20	20
Denali Ultimate Crew Cab 147"	6.2L V8	4WD	15	19	17

Trim	Eng.	Drive train	L/100km City	L/100km Hwy	L/100km Combined
Extended Cab	V6	RWD	16.0	12.0	13.0
Extended Cab	V8	4WD	24.0	20.0	21.0
Extended Cab LS	V6	RWD	21.0	20.0	20.0
Extended Cab LS	V8	4WD	24.0	20.0	21.0
Extended Cab LT	V8	RWD	21.0	20.0	20.0
Extended Cab LT	V8	4WD	24.0	20.0	21.0
Regular Cab	V6	RWD	16.0	20.0	17.0
Regular Cab	V6	4WD	24.0	20.0	21.0
Regular Cab LS	V6	RWD	16.0	20.0	17.0
Regular Cab LS	V6	4WD	24.0	20.0	21.0

Trim	Eng.	Drive train	L/100km City	L/100km Hwy	L/100km Combined
Denali Crew Cab 147"	5.3L V8	RWD	14.7	11.2	12.4
Denali Crew Cab 147"	5.3L V8	4WD	15.7	11.8	13.1
Denali Crew Cab 157"	5.3L V8	4WD	15.7	11.8	13.1
Elevation Crew Cab 147"		RWD	13.1	10.7	11.8
Elevation Double Cab 147"		RWD	13.1	10.7	11.8
Elevation Crew Cab 147" w/3SB		4WD	13.8	11.8	12.4
Elevation Crew Cab 147" w/3VL		4WD	13.8	11.8	12.4
Elevation Crew Cab 157"		4WD	13.8	11.8	12.4
Elevation Double Cab 147" w/3SB		4WD	13.8	11.8	12.4
Elevation Double Cab 147" w/3VL		4WD	13.8	11.8	12.4
Pro Crew Cab 147"		RWD	13.1	10.7	11.8
Pro Double Cab 147"		RWD	13.1	10.7	11.8
Pro Reg Cab 126"		RWD	13.1	10.7	11.8
Pro Reg Cab 140"		RWD	13.1	10.7	11.8
Pro Crew Cab 147"		4WD	13.8	11.8	12.4
Pro Crew Cab 157"		4WD	13.8	11.8	12.4
Pro Double Cab 147"		4WD	13.8	11.8	12.4
Pro Reg Cab 126"		4WD	13.8	11.8	12.4
Pro Reg Cab 140"		4WD	13.8	11.8	12.4
SLE Crew Cab 147"		RWD	13.1	10.7	11.8
SLE Double Cab 147"		RWD	13.1	10.7	11.8
SLE Crew Cab 147"		4WD	13.8	11.8	12.4
SLE Crew Cab 157"		4WD	13.8	11.8	12.4
SLE Double Cab 147"		4WD	13.8	11.8	12.4
SLT Crew Cab 147"	5.3L V8	RWD	14.7	11.2	12.4
SLT Crew Cab 147"	5.3L V8	4WD	15.7	11.8	13.1
SLT Crew Cab 157"	5.3L V8	4WD	15.7	11.8	13.1
AT4 Crew Cab 147"	3.0L I6	4WD	11.2	10.2	10.7
AT4 Crew Cab 157"	3.0L I6	4WD	11.2	10.2	10.7
AT4X Crew Cab 147"	3.0L I6	4WD	12.4	11.8	11.8
Denali Ultimate Crew Cab 147"	6.2L V8	4WD	15.7	12.4	13.8