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Specifications Comparison: 2020 GMC Sierra 1500 vs 2018 GMC Sierra 1500

Researched By The AutoPadre Staff

Gas Tank Size

2020 GMC Sierra 1500

Fuel Tank Size

Trim Eng. Drive train Fuel Tank Size (Gal) Fuel Tank Size (L)
1500 Crew Cab 147" AT45.3L V84WD24.090.8
1500 Crew Cab 157" AT45.3L V84WD24.090.8
1500 Double Cab 147" AT45.3L V84WD24.090.8
1500 Crew Cab 147"4.3L V6RWD24.090.8
1500 Crew Cab 157"4.3L V6RWD24.090.8
1500 Double Cab 147"4.3L V6RWD24.090.8
1500 Reg Cab 140"4.3L V6RWD28.0106.0
1500 Crew Cab 147"4.3L V64WD24.090.8
1500 Crew Cab 157"4.3L V64WD24.090.8
1500 Double Cab 147"4.3L V64WD24.090.8
1500 Reg Cab 140"4.3L V64WD28.0106.0
1500 Crew Cab 147" Denali5.3L V8RWD24.090.8
1500 Crew Cab 157" Denali5.3L V8RWD24.090.8
1500 Crew Cab 147" Denali5.3L V84WD24.090.8
1500 Crew Cab 157" Denali5.3L V84WD24.090.8
1500 Crew Cab 147" Elevation2.7LRWD24.090.8
1500 Crew Cab 157" Elevation2.7LRWD24.090.8
1500 Double Cab 147" Elevation2.7LRWD24.090.8
1500 Crew Cab 147" Elevation2.7L4WD24.090.8
1500 Crew Cab 157" Elevation2.7L4WD24.090.8
1500 Double Cab 147" Elevation2.7L4WD24.090.8
1500 Crew Cab 147" SLE2.7LRWD24.090.8
1500 Crew Cab 157" SLE2.7LRWD24.090.8
1500 Double Cab 147" SLE2.7LRWD24.090.8
1500 Crew Cab 147" SLE2.7L4WD24.090.8
1500 Crew Cab 157" SLE2.7L4WD24.090.8
1500 Double Cab 147" SLE2.7L4WD24.090.8
1500 Crew Cab 147" SLT5.3L V8RWD24.090.8
1500 Crew Cab 157" SLT5.3L V8RWD24.090.8
1500 Double Cab 147" SLT5.3L V8RWD24.090.8
1500 Crew Cab 147" SLT5.3L V84WD24.090.8
1500 Crew Cab 157" SLT5.3L V84WD24.090.8
1500 Double Cab 147" SLT5.3L V84WD24.090.8
1500 Crew Cab4.3L V6RWD24.090.8
1500 Crew Cab4.3L V64WD24.090.8
1500 Crew Cab AT45.3L V84WD24.090.8
1500 Crew Cab Denali5.3L V8RWD24.090.8
1500 Crew Cab Denali5.3L V84WD24.090.8
1500 Crew Cab Elevation2.7LRWD24.090.8
1500 Crew Cab Elevation2.7L4WD24.090.8
1500 Crew Cab SLE2.7LRWD24.090.8
1500 Crew Cab SLE2.7L4WD24.090.8
1500 Crew Cab SLT5.3L V8RWD24.090.8
1500 Crew Cab SLT5.3L V84WD24.090.8
1500 Extended Cab4.3L V6RWD24.090.8
1500 Extended Cab4.3L V64WD24.090.8
1500 Extended Cab AT45.3L V84WD24.090.8
1500 Extended Cab Elevation2.7LRWD24.090.8
1500 Extended Cab Elevation2.7L4WD24.090.8
1500 Extended Cab SLE2.7LRWD24.090.8
1500 Extended Cab SLE2.7L4WD24.090.8
1500 Extended Cab SLT5.3L V8RWD24.090.8
1500 Extended Cab SLT5.3L V84WD24.090.8
1500 Regular Cab4.3L V6RWD28.0106.0
1500 Regular Cab4.3L V64WD28.0106.0

2018 GMC Sierra 1500

Fuel Tank Size

Trim Eng. Drive train Fuel Tank Size (Gal) Fuel Tank Size (L)
1500 Crew Cab4.3L V6RWD26.098.4
1500 Crew Cab4.3L V64WD26.098.4
1500 Crew Cab Denali5.3L V8RWD26.098.4
1500 Crew Cab Denali5.3L V84WD26.098.4
1500 Crew Cab SLE4.3L V6RWD26.098.4
1500 Crew Cab SLE4.3L V64WD26.098.4
1500 Crew Cab SLT5.3L V8RWD26.098.4
1500 Crew Cab SLT5.3L V84WD26.098.4
1500 Crew Cab SLT eAssist5.3L V8RWD26.098.4
1500 Crew Cab SLT eAssist5.3L V84WD26.098.4
1500 Extended Cab4.3L V6RWD26.098.4
1500 Extended Cab4.3L V64WD26.098.4
1500 Extended Cab SLE4.3L V6RWD26.098.4
1500 Extended Cab SLE4.3L V64WD26.098.4
1500 Extended Cab SLT5.3L V8RWD26.098.4
1500 Extended Cab SLT5.3L V84WD26.098.4
1500 Regular Cab4.3L V6RWD26.098.4
1500 Regular Cab4.3L V64WD26.098.4
1500 Regular Cab SLE4.3L V6RWD26.098.4
1500 Regular Cab SLE4.3L V64WD26.098.4

Gas Tank Range

2020 GMC Sierra 1500

Fuel Tank Range (Imp.)

Trim Eng. Drive train City (Miles) Highway (Miles) Combined (Miles)
1500 Crew Cab 147" AT45.3L V84WD384504444
1500 Crew Cab 157" AT45.3L V84WD384504444
1500 Double Cab 147" AT45.3L V84WD384504444
1500 Crew Cab 147"4.3L V6RWD384504444
1500 Crew Cab 157"4.3L V6RWD384504444
1500 Double Cab 147"4.3L V6RWD384504444
1500 Reg Cab 140"4.3L V6RWD448588518
1500 Crew Cab 147"4.3L V64WD360480420
1500 Crew Cab 157"4.3L V64WD360480420
1500 Double Cab 147"4.3L V64WD360480420
1500 Reg Cab 140"4.3L V64WD420560490
1500 Crew Cab 147" Denali5.3L V8RWD408552480
1500 Crew Cab 157" Denali5.3L V8RWD408552480
1500 Crew Cab 147" Denali5.3L V84WD384528456
1500 Crew Cab 157" Denali5.3L V84WD384528456
1500 Crew Cab 147" Elevation2.7LRWD480552516
1500 Crew Cab 157" Elevation2.7LRWD480552516
1500 Double Cab 147" Elevation2.7LRWD480552516
1500 Crew Cab 147" Elevation2.7L4WD456528492
1500 Crew Cab 157" Elevation2.7L4WD456528492
1500 Double Cab 147" Elevation2.7L4WD456528492
1500 Crew Cab 147" SLE2.7LRWD480552516
1500 Crew Cab 157" SLE2.7LRWD480552516
1500 Double Cab 147" SLE2.7LRWD480552516
1500 Crew Cab 147" SLE2.7L4WD456528492
1500 Crew Cab 157" SLE2.7L4WD456528492
1500 Double Cab 147" SLE2.7L4WD456528492
1500 Crew Cab 147" SLT5.3L V8RWD408552480
1500 Crew Cab 157" SLT5.3L V8RWD408552480
1500 Double Cab 147" SLT5.3L V8RWD408552480
1500 Crew Cab 147" SLT5.3L V84WD384528456
1500 Crew Cab 157" SLT5.3L V84WD384528456
1500 Double Cab 147" SLT5.3L V84WD384528456
1500 Crew Cab4.3L V6RWD456528492
1500 Crew Cab4.3L V64WD456528492
1500 Crew Cab AT45.3L V84WD360456408
1500 Crew Cab Denali5.3L V8RWD552720636
1500 Crew Cab Denali5.3L V84WD360480420
1500 Crew Cab Elevation2.7LRWD552720636
1500 Crew Cab Elevation2.7L4WD528624576
1500 Crew Cab SLE2.7LRWD552720636
1500 Crew Cab SLE2.7L4WD528624576
1500 Crew Cab SLT5.3L V8RWD552720636
1500 Crew Cab SLT5.3L V84WD360480420
1500 Extended Cab4.3L V6RWD456528492
1500 Extended Cab4.3L V64WD456528492
1500 Extended Cab AT45.3L V84WD360456408
1500 Extended Cab Elevation2.7LRWD552720636
1500 Extended Cab Elevation2.7L4WD528624576
1500 Extended Cab SLE2.7LRWD552720636
1500 Extended Cab SLE2.7L4WD528624576
1500 Extended Cab SLT5.3L V8RWD552720636
1500 Extended Cab SLT5.3L V84WD360480420
1500 Regular Cab4.3L V6RWD420588504
1500 Regular Cab4.3L V64WD420560490

2018 GMC Sierra 1500

Fuel Tank Range (Imp.)

Trim Eng. Drive train City (Miles) Highway (Miles) Combined (Miles)
1500 Crew Cab4.3L V6RWD416598507
1500 Crew Cab4.3L V64WD416572494
1500 Crew Cab Denali5.3L V8RWD390546468
1500 Crew Cab Denali5.3L V84WD390520455
1500 Crew Cab SLE4.3L V6RWD416598507
1500 Crew Cab SLE4.3L V64WD416572494
1500 Crew Cab SLT5.3L V8RWD468624546
1500 Crew Cab SLT5.3L V84WD416546481
1500 Crew Cab SLT eAssist5.3L V8RWD468624546
1500 Crew Cab SLT eAssist5.3L V84WD416546481
1500 Extended Cab4.3L V6RWD416598507
1500 Extended Cab4.3L V64WD416572494
1500 Extended Cab SLE4.3L V6RWD416598507
1500 Extended Cab SLE4.3L V64WD416572494
1500 Extended Cab SLT5.3L V8RWD390546468
1500 Extended Cab SLT5.3L V84WD390520455
1500 Regular Cab4.3L V6RWD416598507
1500 Regular Cab4.3L V64WD416572494
1500 Regular Cab SLE4.3L V6RWD416598507
1500 Regular Cab SLE4.3L V64WD416572494

2020 GMC Sierra 1500

Fuel Tank Range (Metric)

Trim Eng. Drive train City (KM) Highway (KM) Combined (KM)
1500 Crew Cab 147" AT45.3L V84WD618811715
1500 Crew Cab 157" AT45.3L V84WD618811715
1500 Double Cab 147" AT45.3L V84WD618811715
1500 Crew Cab 147"4.3L V6RWD618811715
1500 Crew Cab 157"4.3L V6RWD618811715
1500 Double Cab 147"4.3L V6RWD618811715
1500 Reg Cab 140"4.3L V6RWD721946834
1500 Crew Cab 147"4.3L V64WD579772676
1500 Crew Cab 157"4.3L V64WD579772676
1500 Double Cab 147"4.3L V64WD579772676
1500 Reg Cab 140"4.3L V64WD676901789
1500 Crew Cab 147" Denali5.3L V8RWD657888772
1500 Crew Cab 157" Denali5.3L V8RWD657888772
1500 Crew Cab 147" Denali5.3L V84WD618850734
1500 Crew Cab 157" Denali5.3L V84WD618850734
1500 Crew Cab 147" Elevation2.7LRWD772888830
1500 Crew Cab 157" Elevation2.7LRWD772888830
1500 Double Cab 147" Elevation2.7LRWD772888830
1500 Crew Cab 147" Elevation2.7L4WD734850792
1500 Crew Cab 157" Elevation2.7L4WD734850792
1500 Double Cab 147" Elevation2.7L4WD734850792
1500 Crew Cab 147" SLE2.7LRWD772888830
1500 Crew Cab 157" SLE2.7LRWD772888830
1500 Double Cab 147" SLE2.7LRWD772888830
1500 Crew Cab 147" SLE2.7L4WD734850792
1500 Crew Cab 157" SLE2.7L4WD734850792
1500 Double Cab 147" SLE2.7L4WD734850792
1500 Crew Cab 147" SLT5.3L V8RWD657888772
1500 Crew Cab 157" SLT5.3L V8RWD657888772
1500 Double Cab 147" SLT5.3L V8RWD657888772
1500 Crew Cab 147" SLT5.3L V84WD618850734
1500 Crew Cab 157" SLT5.3L V84WD618850734
1500 Double Cab 147" SLT5.3L V84WD618850734
1500 Crew Cab4.3L V6RWD734850792
1500 Crew Cab4.3L V64WD734850792
1500 Crew Cab AT45.3L V84WD579734657
1500 Crew Cab Denali5.3L V8RWD88811591024
1500 Crew Cab Denali5.3L V84WD579772676
1500 Crew Cab Elevation2.7LRWD88811591024
1500 Crew Cab Elevation2.7L4WD8501004927
1500 Crew Cab SLE2.7LRWD88811591024
1500 Crew Cab SLE2.7L4WD8501004927
1500 Crew Cab SLT5.3L V8RWD88811591024
1500 Crew Cab SLT5.3L V84WD579772676
1500 Extended Cab4.3L V6RWD734850792
1500 Extended Cab4.3L V64WD734850792
1500 Extended Cab AT45.3L V84WD579734657
1500 Extended Cab Elevation2.7LRWD88811591024
1500 Extended Cab Elevation2.7L4WD8501004927
1500 Extended Cab SLE2.7LRWD88811591024
1500 Extended Cab SLE2.7L4WD8501004927
1500 Extended Cab SLT5.3L V8RWD88811591024
1500 Extended Cab SLT5.3L V84WD579772676
1500 Regular Cab4.3L V6RWD676946811
1500 Regular Cab4.3L V64WD676901789

2018 GMC Sierra 1500

Fuel Tank Range (Metric)

Trim Eng. Drive train City (KM) Highway (KM) Combined (KM)
1500 Crew Cab4.3L V6RWD669962816
1500 Crew Cab4.3L V64WD669921795
1500 Crew Cab Denali5.3L V8RWD628879753
1500 Crew Cab Denali5.3L V84WD628837732
1500 Crew Cab SLE4.3L V6RWD669962816
1500 Crew Cab SLE4.3L V64WD669921795
1500 Crew Cab SLT5.3L V8RWD7531004879
1500 Crew Cab SLT5.3L V84WD669879774
1500 Crew Cab SLT eAssist5.3L V8RWD7531004879
1500 Crew Cab SLT eAssist5.3L V84WD669879774
1500 Extended Cab4.3L V6RWD669962816
1500 Extended Cab4.3L V64WD669921795
1500 Extended Cab SLE4.3L V6RWD669962816
1500 Extended Cab SLE4.3L V64WD669921795
1500 Extended Cab SLT5.3L V8RWD628879753
1500 Extended Cab SLT5.3L V84WD628837732
1500 Regular Cab4.3L V6RWD669962816
1500 Regular Cab4.3L V64WD669921795
1500 Regular Cab SLE4.3L V6RWD669962816
1500 Regular Cab SLE4.3L V64WD669921795

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