1998 Chevrolet Blazer Gas Tank Size & Fuel Capacity
Fuel tank capacity
18.0–19.0gal · 68–72 L
The 1998 Chevrolet Blazer has a fuel tank capacity of 18.0 to 19.0 gallons (68–72 liters), depending on the trim. The most common size is 18.0 gallons, used on 6 trims.
A full tank is good for roughly 342–399 highway miles or 252–304 miles around town, going by the EPA ratings.
19.0 gal · Bigger than 56% of 1998 models we list.
- By trim
- Gas cap & parts
- Fuel essentials
- Miles per tank
- Fill-up cost
- Other years
- Compared
- Fuel recalls
- Pump & gauge parts
- FAQ
1998 Chevrolet Blazer fuel tank capacity by trim
What changes the tank sizeTap an option to filter the table
- Drive
- no difference
- Engine
All 10 trims
MPG and range are city / highway.
| Trim | Engine | Drive | Tank | MPG city / hwy | Range city / hwy | |
|---|---|---|---|---|---|---|
| 4dr SUV 4.3L 6cyl 4A · RWD MPG 14 / 20Range 252 / 360 mi | 4.3L 6cyl 4A | RWD | 18.0 gal68 L | 14 / 20 | 252 / 360 mi | |
| 4dr SUV 4WD 4.3L 6cyl 4A · 4WD MPG 14 / 19Range 252 / 342 mi | 4.3L 6cyl 4A | 4WD | 18.0 gal68 L | 14 / 19 | 252 / 342 mi | |
| LS 4dr SUV 4.3L 6cyl 4A · RWD MPG 14 / 20Range 252 / 360 mi | 4.3L 6cyl 4A | RWD | 18.0 gal68 L | 14 / 20 | 252 / 360 mi | |
| LS 4dr SUV 4WD 4.3L 6cyl 4A · 4WD MPG 14 / 19Range 252 / 342 mi | 4.3L 6cyl 4A | 4WD | 18.0 gal68 L | 14 / 19 | 252 / 342 mi | |
| LT 4dr SUV 4.3L 6cyl 4A · RWD MPG 14 / 20Range 252 / 360 mi | 4.3L 6cyl 4A | RWD | 18.0 gal68 L | 14 / 20 | 252 / 360 mi | |
| LT 4dr SUV 4WD 4.3L 6cyl 4A · 4WD MPG 14 / 19Range 252 / 342 mi | 4.3L 6cyl 4A | 4WD | 18.0 gal68 L | 14 / 19 | 252 / 342 mi | |
| 2dr SUV 4.3L 6cyl 5M · RWD MPG 16 / 21Range 304 / 399 mi | 4.3L 6cyl 5M | RWD | 19.0 gal72 L | 16 / 21 | 304 / 399 mi | |
| 2dr SUV 4WD 4.3L 6cyl 5M · 4WD MPG 14 / 19Range 266 / 361 mi | 4.3L 6cyl 5M | 4WD | 19.0 gal72 L | 14 / 19 | 266 / 361 mi | |
| LS 2dr SUV 4.3L 6cyl 5M · RWD MPG 16 / 21Range 304 / 399 mi | 4.3L 6cyl 5M | RWD | 19.0 gal72 L | 16 / 21 | 304 / 399 mi | |
| LS 2dr SUV 4WD 4.3L 6cyl 5M · 4WD MPG 14 / 19Range 266 / 361 mi | 4.3L 6cyl 5M | 4WD | 19.0 gal72 L | 14 / 19 | 266 / 361 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 1998 Chevrolet Blazer 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 16 MPG, a full 18.0-gallon tank covers about 288 miles.
| Gauge | Gallons | Highway miles | City miles |
|---|---|---|---|
| Full | 18.0 | 360 | 252 |
| 3/4 | 13.5 | 270 | 189 |
| 1/2 | 9.0 | 180 | 126 |
| 1/4 | 4.5 | 90 | 63 |
| 1/8 | 2.3 | 45 | 32 |
Over 15,000 miles a year (the EPA's yearly estimate) this configuration uses about 938 gallons, roughly 52 full tanks.
In real driving: owners who log fill-ups at fueleconomy.gov average 17.6 MPG in the Blazer (13 drivers), about 317 miles on a full 18.0-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
- 16–18 MPG
- Tailpipe CO2
- 494–555 g/mi
- Source
- EPA ratings
What it costs to fill up a 1998 Chevrolet Blazer
$76.86 to fill the 18.0-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 |
|---|---|---|---|---|
| 18.0 gal | Regular | $4.27 | $76.86 | $57.64 |
| 19.0 gal | Regular | $4.27 | $81.13 | $60.85 |
By region, 18.0-gallon tank
| Region | Regular / gal | Fill from empty |
|---|---|---|
| East Coast | $4.02 | $72.36 |
| Midwest | $4.27 | $76.86 |
| Gulf CoastLowest | $3.70 | $66.60 |
| Rocky Mountain | $4.46 | $80.28 |
| West Coast | $5.42 | $97.56 |
| CaliforniaHighest | $5.89 | $106.02 |
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
- 18.0-gallon tank$76.86
- 19.0-gallon tank$81.13
- A year of driving (15,000 mi)$4,003
Starts at the US average for regular; type in what your station charges. For other tank sizes, use the fill-up calculator.
Blazer tank size in other years
The 1998 Blazer uses the same 18.0–19.0 gal tank sizes as the 1997 model.
| Model year | Tank | Longest highway range |
|---|---|---|
| 2003 Blazer | 18.0–19.0 gal | 380 mi |
| 2002 Blazer | 18.0–19.0 gal | 380 mi |
| 2001 Blazer | 18.0–19.0 gal | 380 mi |
| 2000 Blazer | 18.0–19.0 gal | 399 mi |
| 1999 Blazer | 18.0–19.0 gal | 399 mi |
| 1998 Blazer | 18.0–19.0 gal | 399 mi |
| 1997 Blazer | 18.0–19.0 gal | 437 mi |
| 1996 Blazer | 19.0–20.0 gal | 400 mi |
| 1995 Blazer | 19.0–20.0 gal | 440 mi |
| 1994 Blazer | 30.0 gal | 450 mi |
| 1993 Blazer | 30.0 gal | 480 mi |
1998 Chevrolet Blazer vs similar 1998 SUVs
At 19.0 gallons, the Blazer's largest tank ranks fifth of the seven 1998 SUVs compared here. The Jeep Grand Cherokee carries the most (23.0 gal) and the Oldsmobile Bravada the least (18.0 gal).
| 1998 model | Tank | Longest highway range |
|---|---|---|
| Jeep Grand Cherokee | 23.0 gal | 460 mi |
| Honda Passport | 21.1 gal | 401 mi |
| Nissan Pathfinder | 21.1 gal | 380 mi |
| Mitsubishi Montero Sport | 19.5 gal | 449 mi |
| Chevrolet Blazer | 18.0–19.0 gal | 399 mi |
| Toyota 4Runner | 18.5 gal | 407 mi |
| Oldsmobile Bravada | 18.0 gal | 342 mi |
Other 1998 SUVs of a similar size, one model per brand.
1998 Chevrolet Blazer fuel system recalls
None of the 3 recalls NHTSA lists for the 1998 Chevrolet Blazer involve the fuel system.
1998 Chevrolet Blazer fuel pump and gauge parts
NHTSA lists no fuel-system recall for the 1998 Chevrolet Blazer, 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 1998 Chevrolet Blazer?
The 1998 Chevrolet Blazer holds between 18.0 and 19.0 gallons, depending on the trim. 18.0 gallons is the usual size; the 19.0-gallon tank comes on the 2dr SUV (4.3L 6cyl 5M).
How many gallons and liters does the 1998 Chevrolet Blazer gas tank hold?
The 1998 Chevrolet Blazer tank holds 68–72 liters, or 18.0–19.0 gallons in US gallons.
Which 1998 Chevrolet Blazer has the biggest gas tank?
The 19.0-gallon tank is on the 2dr SUV, 2dr SUV 4WD, LS 2dr SUV and 1 other trim. The smallest tank, 18.0 gallons, is on the 4dr SUV.
Does 4WD change the 1998 Chevrolet Blazer gas tank?
No. RWD and 4WD versions of the 1998 Chevrolet Blazer use the same 18.0–19.0 gal tank.
How far can a 1998 Chevrolet Blazer go on a full tank?
About 342–399 miles on the highway and 252–304 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 1998 Chevrolet Blazer go on a quarter tank?
About 90 highway miles or 63 in town from the 18.0-gallon tank, which has roughly 4.5 gallons left at the quarter mark. Gauges aren't exact, so treat that as a guide.
How many miles does a 1998 Chevrolet Blazer really get on a tank?
Drivers who log their fill-ups at fueleconomy.gov average 17.6 MPG in the 1998 Chevrolet Blazer (13 drivers), which works out to about 317 miles on a full 18.0-gallon tank.
What gas does the 1998 Chevrolet Blazer take?
Regular unleaded. The label inside the fuel door confirms it for your car.
How much does it cost to fill up a 1998 Chevrolet Blazer?
At the US average of $4.27 a gallon for regular (EIA, week of October 26, 2026), filling the 18.0-gallon tank from empty costs $76.86. It ranges from $66.60 in the Gulf Coast to $106.02 in California.
How much does a full tank of gas weigh in a 1998 Chevrolet Blazer?
About 118 pounds for the 19.0-gallon tank. Gasoline weighs roughly 6.2 pounds a gallon.
Does the 1998 Chevrolet Blazer have a bigger gas tank than the Honda Passport?
No. The 1998 Honda Passport holds up to 21.1 gallons; the 1998 Chevrolet Blazer holds up to 19.0.
Has the 1998 Chevrolet Blazer had a fuel pump or fuel system recall?
No. None of the 3 recalls NHTSA lists for the 1998 Chevrolet Blazer involve the fuel system.
Sources
- Tank sizes: manufacturer-rated capacities from US-market specifications, checked against independent references. 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 (this week's prices).
- Recalls: NHTSA recall database (Chevrolet fuel system recalls).
- 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.