1998 GMC Yukon Gas Tank Size & Fuel Capacity
Fuel tank capacity
29.5gal · 112 L
The 1998 GMC Yukon has a fuel tank capacity of 29.5 gallons (112 liters) on every trim.
A full tank is good for roughly 443–472 highway miles or 354 miles around town, going by the EPA ratings.
29.5 gal · Bigger than 88% 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 GMC Yukon fuel tank capacity by trim
What changes the tank sizeTap an option to filter the table
- Drive
- no difference
All 4 trims
MPG and range are city / highway.
| Trim | Engine | Drive | Tank | MPG city / hwy | Range city / hwy | |
|---|---|---|---|---|---|---|
| SLE 4dr SUV 5.7L 8cyl 4A · RWD MPG 12 / 16Range 354 / 472 mi | 5.7L 8cyl 4A | RWD | 29.5 gal112 L | 12 / 16 | 354 / 472 mi | |
| SLE 4dr SUV 4WD 5.7L 8cyl 4A · 4WD MPG 12 / 15Range 354 / 443 mi | 5.7L 8cyl 4A | 4WD | 29.5 gal112 L | 12 / 15 | 354 / 443 mi | |
| SLT 4dr SUV 5.7L 8cyl 4A · RWD MPG 12 / 16Range 354 / 472 mi | 5.7L 8cyl 4A | RWD | 29.5 gal112 L | 12 / 16 | 354 / 472 mi | |
| SLT 4dr SUV 4WD 5.7L 8cyl 4A · 4WD MPG 12 / 15Range 354 / 443 mi | 5.7L 8cyl 4A | 4WD | 29.5 gal112 L | 12 / 15 | 354 / 443 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 GMC Yukon 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 14 MPG, a full 29.5-gallon tank covers about 413 miles.
| Gauge | Gallons | Highway miles | City miles |
|---|---|---|---|
| Full | 29.5 | 472 | 354 |
| 3/4 | 22.1 | 354 | 266 |
| 1/2 | 14.8 | 236 | 177 |
| 1/4 | 7.4 | 118 | 89 |
| 1/8 | 3.7 | 59 | 44 |
Over 15,000 miles a year (the EPA's yearly estimate) this configuration uses about 1,071 gallons, roughly 36 full tanks.
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
- 13–14 MPG
- Tailpipe CO2
- 635–684 g/mi
- Source
- EPA ratings
What it costs to fill up a 1998 GMC Yukon
$125.96 to fill the 29.5-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 |
|---|---|---|---|---|
| 29.5 gal | Regular | $4.27 | $125.96 | $94.47 |
By region, 29.5-gallon tank
| Region | Regular / gal | Fill from empty |
|---|---|---|
| East Coast | $4.02 | $118.59 |
| Midwest | $4.27 | $125.96 |
| Gulf CoastLowest | $3.70 | $109.15 |
| Rocky Mountain | $4.46 | $131.57 |
| West Coast | $5.42 | $159.89 |
| CaliforniaHighest | $5.89 | $173.75 |
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
- 29.5-gallon tank$125.96
- A year of driving (15,000 mi)$4,575
Starts at the US average for regular; type in what your station charges. For other tank sizes, use the fill-up calculator.
Yukon tank size in other years
The tank changed for 1998: 29.5 gal, down from 30.0 gal on the 1997 Yukon.
| Model year | Tank | Longest highway range |
|---|---|---|
| 2003 Yukon | 26.0 gal | 442 mi |
| 2002 Yukon | 26.0 gal | 468 mi |
| 2001 Yukon | 26.0 gal | 468 mi |
| 2000 Yukon | 26.0 gal | 468 mi |
| 1999 Yukon | 29.5 gal | 472 mi |
| 1998 Yukon | 29.5 gal | 472 mi |
| 1997 Yukon | 30.0 gal | 510 mi |
| 1996 Yukon | 30.0 gal | 480 mi |
| 1995 Yukon | 30.0 gal | 450 mi |
| 1994 Yukon | 30.0 gal | 450 mi |
| 1993 Yukon | 30.0 gal | 480 mi |
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1998 GMC Yukon vs similar 1998 SUVs
The Yukon has the largest tank of the three 1998 SUVs compared here, 29.5 gallons against 25.4 for the Toyota Land Cruiser.
| 1998 model | Tank | Longest highway range |
|---|---|---|
| GMC Yukon | 29.5 gal | 472 mi |
| Toyota Land Cruiser | 25.4 gal | 381 mi |
| Dodge Durango | 25.0 gal | Not rated |
Other 1998 SUVs of a similar size, one model per brand.
1998 GMC Yukon fuel system recalls
None of the 2 recalls NHTSA lists for the 1998 GMC Yukon involve the fuel system.
1998 GMC Yukon fuel pump and gauge parts
NHTSA lists no fuel-system recall for the 1998 GMC Yukon, 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 GMC Yukon?
The 1998 GMC Yukon holds 29.5 gallons (112 liters) on every trim we list.
How many gallons and liters does the 1998 GMC Yukon gas tank hold?
The 1998 GMC Yukon tank holds 112 liters, or 29.5 gallons in US gallons.
Does 4WD change the 1998 GMC Yukon gas tank?
No. RWD and 4WD versions of the 1998 GMC Yukon use the same 29.5 gal tank.
How far can a 1998 GMC Yukon go on a full tank?
About 443–472 miles on the highway and 354 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 GMC Yukon go on a quarter tank?
About 118 highway miles or 89 in town from the 29.5-gallon tank, which has roughly 7.4 gallons left at the quarter mark. Gauges aren't exact, so treat that as a guide.
What gas does the 1998 GMC Yukon take?
Regular unleaded. The label inside the fuel door confirms it for your car.
How much does it cost to fill up a 1998 GMC Yukon?
At the US average of $4.27 a gallon for regular (EIA, week of October 26, 2026), filling the 29.5-gallon tank from empty costs $125.96. It ranges from $109.15 in the Gulf Coast to $173.75 in California.
How much does a full tank of gas weigh in a 1998 GMC Yukon?
About 183 pounds for the 29.5-gallon tank. Gasoline weighs roughly 6.2 pounds a gallon.
Does the 1998 GMC Yukon have a bigger gas tank than the Toyota Land Cruiser?
Yes. The 1998 GMC Yukon holds up to 29.5 gallons; the 1998 Toyota Land Cruiser holds up to 25.4.
Has the 1998 GMC Yukon had a fuel pump or fuel system recall?
No. None of the 2 recalls NHTSA lists for the 1998 GMC Yukon 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 (GMC fuel system recalls).
Does your owner's manual say something different? Let us know and we'll fix it. More on how we check the numbers.