2000 GMC Sierra 1500 Gas Tank Size and Capacity
Fuel tank capacity
26.0–34.0gal · 98–129 L
The 2000 GMC Sierra 1500 has a fuel tank capacity of 26.0 to 34.0 gallons (98–129 liters), depending on the trim. The most common size is 34.0 gallons, used on 10 trims.
A full tank is good for roughly 416–714 highway miles or 338–510 miles around town, going by the EPA ratings.
34.0 gal · Bigger than 91% of 2000 models we list.
Listed separately: 2000 GMC Sierra 2500 (26.0–34.0 gal).
- By trim
- Gas cap & parts
- Fuel essentials
- Miles per tank
- Fill-up cost
- Other years
- Compared
- Fuel recalls
- Pump & gauge parts
- FAQ
2000 GMC Sierra 1500 fuel tank capacity by trim
What changes the tank sizeTap an option to filter the table
- Drive
- no difference
- Cab
- no difference
- Bed
- Engine
- no difference
All 20 trims
MPG and range are city / highway.
| Trim | Engine | Drive | Tank | MPG city / hwy | Range city / hwy | |
|---|---|---|---|---|---|---|
| SL 2dr Regular Cab 4WD SB 4.3L 6cyl 5M · 4WD MPG 13 / 16Range 338 / 416 mi | 4.3L 6cyl 5M | 4WD | 26.0 gal98 L | 13 / 16 | 338 / 416 mi | |
| SL 2dr Regular Cab SB 4.3L 6cyl 5M · RWD MPG 15 / 21Range 390 / 546 mi | 4.3L 6cyl 5M | RWD | 26.0 gal98 L | 15 / 21 | 390 / 546 mi | |
| SL 3dr Extended Cab 4WD SB 4.8L 8cyl 4A · 4WD MPG 14 / 17Range 364 / 442 mi | 4.8L 8cyl 4A | 4WD | 26.0 gal98 L | 14 / 17 | 364 / 442 mi | |
| SL 3dr Extended Cab SB 4.8L 8cyl 4A · RWD MPG 14 / 19Range 364 / 494 mi | 4.8L 8cyl 4A | RWD | 26.0 gal98 L | 14 / 19 | 364 / 494 mi | |
| SLE 2dr Regular Cab 4WD SB 4.3L 6cyl 5M · 4WD MPG 13 / 16Range 338 / 416 mi | 4.3L 6cyl 5M | 4WD | 26.0 gal98 L | 13 / 16 | 338 / 416 mi | |
| SLE 2dr Regular Cab SB 4.3L 6cyl 5M · RWD MPG 15 / 21Range 390 / 546 mi | 4.3L 6cyl 5M | RWD | 26.0 gal98 L | 15 / 21 | 390 / 546 mi | |
| SLE 3dr Extended Cab 4WD SB 4.8L 8cyl 4A · 4WD MPG 14 / 17Range 364 / 442 mi | 4.8L 8cyl 4A | 4WD | 26.0 gal98 L | 14 / 17 | 364 / 442 mi | |
| SLE 3dr Extended Cab SB 4.8L 8cyl 4A · RWD MPG 14 / 19Range 364 / 494 mi | 4.8L 8cyl 4A | RWD | 26.0 gal98 L | 14 / 19 | 364 / 494 mi | |
| SLT 3dr Extended Cab 4WD SB 4.8L 8cyl 4A · 4WD MPG 14 / 17Range 364 / 442 mi | 4.8L 8cyl 4A | 4WD | 26.0 gal98 L | 14 / 17 | 364 / 442 mi | |
| SLT 3dr Extended Cab SB 4.8L 8cyl 4A · RWD MPG 14 / 19Range 364 / 494 mi | 4.8L 8cyl 4A | RWD | 26.0 gal98 L | 14 / 19 | 364 / 494 mi | |
| SL 2dr Regular Cab 4WD LB 4.3L 6cyl 5M · 4WD MPG 13 / 16Range 442 / 544 mi | 4.3L 6cyl 5M | 4WD | 34.0 gal129 L | 13 / 16 | 442 / 544 mi | |
| SL 2dr Regular Cab LB 4.3L 6cyl 5M · RWD MPG 15 / 21Range 510 / 714 mi | 4.3L 6cyl 5M | RWD | 34.0 gal129 L | 15 / 21 | 510 / 714 mi | |
| SL 3dr Extended Cab 4WD LB 4.8L 8cyl 4A · 4WD MPG 14 / 17Range 476 / 578 mi | 4.8L 8cyl 4A | 4WD | 34.0 gal129 L | 14 / 17 | 476 / 578 mi | |
| SL 3dr Extended Cab LB 4.8L 8cyl 4A · RWD MPG 14 / 19Range 476 / 646 mi | 4.8L 8cyl 4A | RWD | 34.0 gal129 L | 14 / 19 | 476 / 646 mi | |
| SLE 2dr Regular Cab 4WD LB 4.3L 6cyl 5M · 4WD MPG 13 / 16Range 442 / 544 mi | 4.3L 6cyl 5M | 4WD | 34.0 gal129 L | 13 / 16 | 442 / 544 mi | |
| SLE 2dr Regular Cab LB 4.3L 6cyl 5M · RWD MPG 15 / 21Range 510 / 714 mi | 4.3L 6cyl 5M | RWD | 34.0 gal129 L | 15 / 21 | 510 / 714 mi | |
| SLE 3dr Extended Cab 4WD LB 4.8L 8cyl 4A · 4WD MPG 14 / 17Range 476 / 578 mi | 4.8L 8cyl 4A | 4WD | 34.0 gal129 L | 14 / 17 | 476 / 578 mi | |
| SLE 3dr Extended Cab LB 4.8L 8cyl 4A · RWD MPG 14 / 19Range 476 / 646 mi | 4.8L 8cyl 4A | RWD | 34.0 gal129 L | 14 / 19 | 476 / 646 mi | |
| SLT 3dr Extended Cab 4WD LB 4.8L 8cyl 4A · 4WD MPG 14 / 17Range 476 / 578 mi | 4.8L 8cyl 4A | 4WD | 34.0 gal129 L | 14 / 17 | 476 / 578 mi | |
| SLT 3dr Extended Cab LB 4.8L 8cyl 4A · RWD MPG 14 / 19Range 476 / 646 mi | 4.8L 8cyl 4A | RWD | 34.0 gal129 L | 14 / 19 | 476 / 646 mi | |
| No trim matches all of these filters. | ||||||
Tank figures are the manufacturer's rated capacity, sorted smallest tank first. Range is tank size times EPA city or highway MPG.
How far a 2000 GMC Sierra 1500 goes on a tank
Gallons left and the distance they cover at each mark on the fuel gauge, at EPA city and highway mileage. At the combined rating of 15 MPG, a full 34.0-gallon tank covers about 510 miles.
| Gauge | Gallons | Highway miles | City miles |
|---|---|---|---|
| Full | 34.0 | 578 | 476 |
| 3/4 | 25.5 | 434 | 357 |
| 1/2 | 17.0 | 289 | 238 |
| 1/4 | 8.5 | 145 | 119 |
| 1/8 | 4.3 | 72 | 60 |
Over 15,000 miles a year (the EPA's yearly estimate) this configuration uses about 1,000 gallons, roughly 29 full tanks.
In real driving: owners who log fill-ups at fueleconomy.gov average 17.1 MPG in the Sierra 1500 (10 drivers), about 581 miles on a full 34.0-gallon tank.
Fuel gauges aren't perfectly linear and the low-fuel light comes on with a few gallons still in the tank, so plan your stop before the last eighth.
- EPA combined
- 14–18 MPG
- Tailpipe CO2
- 494–635 g/mi
- Source
- EPA ratings ↗
What it costs to fill up a 2000 GMC Sierra 1500
$145.18 to fill the 34.0-gallon tank from empty with regular, at this week's US average of $4.27 a gallon.
| Tank | Fuel | US avg / gal | From empty | From 1/4 tank |
|---|---|---|---|---|
| 26.0 gal | Regular | $4.27 | $111.02 | $83.26 |
| 34.0 gal | Regular | $4.27 | $145.18 | $108.88 |
By region, 34.0-gallon tank
| Region | Regular / gal | Fill from empty |
|---|---|---|
| East Coast | $4.02 | $136.68 |
| Midwest | $4.27 | $145.18 |
| Gulf CoastLowest | $3.70 | $125.80 |
| Rocky Mountain | $4.46 | $151.64 |
| West Coast | $5.42 | $184.28 |
| CaliforniaHighest | $5.89 | $200.26 |
Prices: U.S. Energy Information Administration retail averages for the week of October 26, 2026. This week's prices by state and city.
Your own price
- 26.0-gallon tank$111.02
- 34.0-gallon tank$145.18
- A year of driving (15,000 mi)$4,270
Starts at the US average for regular; type in what your station charges. For other tank sizes, use the fill-up calculator.
Sierra 1500 tank size in other years
The tank changed for 2000: 26.0–34.0 gal, up from 25.0–34.0 gal on the 1998 Sierra 1500.
| Model year | Tank | Longest highway range |
|---|---|---|
| 2005 Sierra 1500 | 26.0–34.0 gal | 680 mi |
| 2004 Sierra 1500 | 26.0–34.0 gal | 646 mi |
| 2003 Sierra 1500 | 26.0–34.0 gal | 646 mi |
| 2002 Sierra 1500 | 26.0–34.0 gal | 646 mi |
| 2001 Sierra 1500 | 26.0–34.0 gal | 646 mi |
| 2000 Sierra 1500 | 26.0–34.0 gal | 714 mi |
| 1998 Sierra 1500 | 25.0–34.0 gal | 714 mi |
| 1997 Sierra 1500 | 25.0–34.0 gal | 714 mi |
| 1996 Sierra 1500 | 25.0–34.0 gal | 714 mi |
| 1995 Sierra 1500 | 25.0–34.0 gal | 680 mi |
| 1994 Sierra 1500 | 25.0–34.0 gal | 680 mi |
- 2026
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2000 GMC Sierra 1500 vs similar 2000 pickups
At 34.0 gallons, the Sierra 1500's largest tank ranks second of the five 2000 pickups compared here. The Dodge Ram Pickup 1500 carries the most (35.0 gal) and the Toyota Tundra the least (26.4 gal).
| 2000 model | Tank | Longest highway range |
|---|---|---|
| Dodge Ram Pickup 1500 | 26.0–35.0 gal | 665 mi |
| GMC Sierra 1500 | 26.0–34.0 gal | 714 mi |
| Chevrolet Silverado 1500 | 26.0–34.0 gal | 714 mi |
| Ford F-150 | 24.5–30.0 gal | 570 mi |
| Toyota Tundra | 26.4 gal | 475 mi |
Picked by body style and size: other 2000 pickups within about 5% of the Sierra 1500's length and 15% of its curb weight, one model per brand.
2000 GMC Sierra 1500 fuel system recalls
None of the 1 recall NHTSA lists for the 2000 GMC Sierra 1500 involve the fuel system.
2000 GMC Sierra 1500 fuel pump and gauge parts
NHTSA lists no fuel-system recall for the 2000 GMC Sierra 1500, so a failed pump or gauge is a normal repair. These are the part numbers the makers list for it.
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Frequently asked questions
What is the fuel tank capacity of the 2000 GMC Sierra 1500?
The 2000 GMC Sierra 1500 holds between 26.0 and 34.0 gallons, depending on the trim. 34.0 gallons is the usual size; the smaller 26.0-gallon tank is on the SL 2dr Regular Cab 4WD SB.
How many gallons and liters does the 2000 GMC Sierra 1500 gas tank hold?
The 2000 GMC Sierra 1500 tank holds 98–129 liters, or 26.0–34.0 gallons in US gallons.
Which 2000 GMC Sierra 1500 has the biggest gas tank?
The 34.0-gallon tank is on the SL 2dr Regular Cab 4WD LB, SL 2dr Regular Cab LB, SL 3dr Extended Cab 4WD LB and 7 other trims. The smallest tank, 26.0 gallons, is on the SL 2dr Regular Cab 4WD SB.
Does 4WD change the 2000 GMC Sierra 1500 gas tank?
No. 4WD and RWD versions of the 2000 GMC Sierra 1500 use the same 26.0–34.0 gal tank.
How far can a 2000 GMC Sierra 1500 go on a full tank?
About 416–714 miles on the highway and 338–510 miles in town, going from full to empty at its EPA ratings. Expect less in practice, since nobody runs the tank dry.
How many miles can a 2000 GMC Sierra 1500 go on a quarter tank?
About 145 highway miles or 119 in town from the 34.0-gallon tank, which has roughly 8.5 gallons left at the quarter mark. Gauges aren't exact, so treat that as a guide.
How many miles does a 2000 GMC Sierra 1500 really get on a tank?
Drivers who log their fill-ups at fueleconomy.gov average 17.1 MPG in the 2000 GMC Sierra 1500 (10 drivers), which works out to about 581 miles on a full 34.0-gallon tank.
What gas does the 2000 GMC Sierra 1500 take?
Regular unleaded. The label inside the fuel door confirms it for your car.
How much does it cost to fill up a 2000 GMC Sierra 1500?
At the US average of $4.27 a gallon for regular (EIA, week of October 26, 2026), filling the 34.0-gallon tank from empty costs $145.18. It ranges from $125.80 in the Gulf Coast to $200.26 in California.
How much does a full tank of gas weigh in a 2000 GMC Sierra 1500?
About 211 pounds for the 34.0-gallon tank. Gasoline weighs roughly 6.2 pounds a gallon.
Does the 2000 GMC Sierra 1500 have a bigger gas tank than the Chevrolet Silverado 1500?
No, they match: both top out at 34.0 gallons in 2000.
Has the 2000 GMC Sierra 1500 had a fuel pump or fuel system recall?
No. None of the 1 recall NHTSA lists for the 2000 GMC Sierra 1500 involve the fuel system.
Sources
- Tank sizes: manufacturer-rated capacities from US-market specifications, cross-checked against a second spec database. Updated October 2026.
- MPG and range: EPA ratings (fueleconomy.gov). Range is tank size times EPA MPG.
- Fuel prices: U.S. Energy Information Administration, week of October 26, 2026.
- Recalls: NHTSA recall database.
- Real-world MPG: driver-reported fill-ups shared at fueleconomy.gov (My MPG).
Does your owner's manual say something different? Let us know and we'll fix it. More on how we check the numbers.