Specifications Comparison: 2013 GMC Sierra 3500 vs 2023 GMC Sierra 3500

Gas Tank Size

Trim	Eng.	Drive train	Fuel Tank Size (Gal)	Fuel Tank Size (L)
HD 3500 Crew Cab Denali	6.0L V8	RWD	36.0	136.3
HD 3500 Crew Cab Denali	6.0L V8	4WD	36.0	136.3
HD 3500 Crew Cab SLE	6.0L V8	RWD	36.0	136.3
HD 3500 Crew Cab SLE	6.0L V8	4WD	36.0	136.3
HD 3500 Crew Cab SLT	6.0L V8	RWD	36.0	136.3
HD 3500 Crew Cab SLT	6.0L V8	4WD	36.0	136.3
HD 3500 Extended Cab SLE	6.0L V8	RWD	36.0	136.3
HD 3500 Extended Cab SLE	6.0L V8	4WD	36.0	136.3
HD 3500 Extended Cab SLT	6.0L V8	RWD	36.0	136.3
HD 3500 Extended Cab SLT	6.0L V8	4WD	36.0	136.3
HD 3500 Regular Cab SLE	6.0L V8	RWD	36.0	136.3
HD 3500 Regular Cab SLE	6.0L V8	4WD	36.0	136.3

Trim	Eng.	Drive train	Fuel Tank Size (Gal)	Fuel Tank Size (L)
HD Pro Crew Cab 159"	6.6L V8	RWD	36.0	136.3
HD Pro Crew Cab 172"	6.6L V8	RWD	36.0	136.3
HD Pro Double Cab 162"	6.6L V8	RWD	36.0	136.3
HD Pro Reg Cab 142"	6.6L V8	RWD	36.0	136.3
HD Pro Crew Cab 159"	6.6L V8	4WD	36.0	136.3
HD Pro Crew Cab 172"	6.6L V8	4WD	36.0	136.3
HD Pro Double Cab 162"	6.6L V8	4WD	36.0	136.3
HD Pro Reg Cab 142"	6.6L V8	4WD	36.0	136.3
HD SLE Crew Cab 159"	6.6L V8	RWD	36.0	136.3
HD SLE Crew Cab 172"	6.6L V8	RWD	36.0	136.3
HD SLE Double Cab 162"	6.6L V8	RWD	36.0	136.3
HD SLE Reg Cab 142"	6.6L V8	RWD	36.0	136.3
HD SLE Crew Cab 159"	6.6L V8	4WD	36.0	136.3
HD SLE Crew Cab 172"	6.6L V8	4WD	36.0	136.3
HD SLE Double Cab 162"	6.6L V8	4WD	36.0	136.3
HD SLE Reg Cab 142"	6.6L V8	4WD	36.0	136.3
HD SLT Crew Cab 159"	6.6L V8	RWD	36.0	136.3
HD SLT Crew Cab 172"	6.6L V8	RWD	36.0	136.3
HD SLT Crew Cab 159"	6.6L V8	4WD	36.0	136.3
HD SLT Crew Cab 172"	6.6L V8	4WD	36.0	136.3
HD AT4 Crew Cab 159"	6.6L V8	4WD	36.0	136.3
HD AT4 Crew Cab 172"	6.6L V8	4WD	36.0	136.3
HD Denali Crew Cab 159"	6.6L V8	4WD	36.0	136.3
HD Denali Crew Cab 172"	6.6L V8	4WD	36.0	136.3