1998 Dodge Ram Pickup 2500 Gas Tank Size & Fuel Capacity
Fuel tank capacity
34.0–35.0gal · 129–132 L
The 1998 Dodge Ram Pickup 2500 has a fuel tank capacity of 34.0 to 35.0 gallons (129–132 liters), depending on the trim. The most common size is 35.0 gallons, used on 12 trims.
35.0 gal · Bigger than 95% of 1998 models we list.
1998 Dodge Ram Pickup 2500 fuel tank capacity by trim
What changes the tank sizeTap an option to filter the table
- Drive
- no difference
- Cab
- Bed
All 20 trims
| Trim | Engine | Drive | Tank | |||
|---|---|---|---|---|---|---|
| Laramie SLT 2dr Extended Cab 4WD SB 5.9L 8cyl 5M · 4WD | 5.9L 8cyl 5M | 4WD | 34.0 gal129 L | |||
| Laramie SLT 2dr Extended Cab SB 5.9L 8cyl 5M · RWD | 5.9L 8cyl 5M | RWD | 34.0 gal129 L | |||
| Laramie SLT 4dr Extended Cab 4WD SB 5.9L 8cyl 5M · 4WD | 5.9L 8cyl 5M | 4WD | 34.0 gal129 L | |||
| Laramie SLT 4dr Extended Cab SB 5.9L 8cyl 5M · RWD | 5.9L 8cyl 5M | RWD | 34.0 gal129 L | |||
| ST 2dr Extended Cab 4WD SB 5.9L 8cyl 5M · 4WD | 5.9L 8cyl 5M | 4WD | 34.0 gal129 L | |||
| ST 2dr Extended Cab SB 5.9L 8cyl 5M · RWD | 5.9L 8cyl 5M | RWD | 34.0 gal129 L | |||
| ST 4dr Extended Cab 4WD SB 5.9L 8cyl 5M · 4WD | 5.9L 8cyl 5M | 4WD | 34.0 gal129 L | |||
| ST 4dr Extended Cab SB 5.9L 8cyl 5M · RWD | 5.9L 8cyl 5M | RWD | 34.0 gal129 L | |||
| Laramie SLT 2dr Extended Cab 4WD LB 5.9L 8cyl 5M · 4WD | 5.9L 8cyl 5M | 4WD | 35.0 gal132 L | |||
| Laramie SLT 2dr Extended Cab LB 5.9L 8cyl 5M · RWD | 5.9L 8cyl 5M | RWD | 35.0 gal132 L | |||
| Laramie SLT 2dr Regular Cab 4WD LB 5.9L 8cyl 5M · 4WD | 5.9L 8cyl 5M | 4WD | 35.0 gal132 L | |||
| Laramie SLT 2dr Regular Cab LB 5.9L 8cyl 5M · RWD | 5.9L 8cyl 5M | RWD | 35.0 gal132 L | |||
| Laramie SLT 4dr Extended Cab 4WD LB 5.9L 8cyl 5M · 4WD | 5.9L 8cyl 5M | 4WD | 35.0 gal132 L | |||
| Laramie SLT 4dr Extended Cab LB 5.9L 8cyl 5M · RWD | 5.9L 8cyl 5M | RWD | 35.0 gal132 L | |||
| ST 2dr Extended Cab 4WD LB 5.9L 8cyl 5M · 4WD | 5.9L 8cyl 5M | 4WD | 35.0 gal132 L | |||
| ST 2dr Extended Cab LB 5.9L 8cyl 5M · RWD | 5.9L 8cyl 5M | RWD | 35.0 gal132 L | |||
| ST 2dr Regular Cab 4WD LB 5.9L 8cyl 5M · 4WD | 5.9L 8cyl 5M | 4WD | 35.0 gal132 L | |||
| ST 2dr Regular Cab LB 5.9L 8cyl 5M · RWD | 5.9L 8cyl 5M | RWD | 35.0 gal132 L | |||
| ST 4dr Extended Cab 4WD LB 5.9L 8cyl 5M · 4WD | 5.9L 8cyl 5M | 4WD | 35.0 gal132 L | |||
| ST 4dr Extended Cab LB 5.9L 8cyl 5M · RWD | 5.9L 8cyl 5M | RWD | 35.0 gal132 L | |||
| No trim matches all of these filters. | ||||||
Tank figures are the manufacturer's rated capacity, sorted smallest tank first. The EPA doesn't rate fuel economy for heavy-duty pickups and vans (over 8,500 lb gross vehicle weight), so these trims have no official MPG or range.
What it costs to fill up a 1998 Dodge Ram Pickup 2500
$149.45 to fill the 35.0-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 |
|---|---|---|---|---|
| 34.0 gal | Regular | $4.27 | $145.18 | $108.88 |
| 35.0 gal | Regular | $4.27 | $149.45 | $112.09 |
By region, 35.0-gallon tank
| Region | Regular / gal | Fill from empty |
|---|---|---|
| East Coast | $4.02 | $140.70 |
| Midwest | $4.27 | $149.45 |
| Gulf CoastLowest | $3.70 | $129.50 |
| Rocky Mountain | $4.46 | $156.10 |
| West Coast | $5.42 | $189.70 |
| CaliforniaHighest | $5.89 | $206.15 |
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
- 34.0-gallon tank$145.18
- 35.0-gallon tank$149.45
Starts at the US average for regular; type in what your station charges. For other tank sizes, use the fill-up calculator.
Ram Pickup 2500 tank size in other years
The tank changed for 1998: 34.0–35.0 gal, up from 26.0–35.0 gal on the 1997 Ram Pickup 2500.
| Model year | Tank | Longest highway range |
|---|---|---|
| 2003 Ram Pickup 2500 | 34.0–35.0 gal | Not rated |
| 2002 Ram Pickup 2500 | 34.0–35.0 gal | Not rated |
| 2001 Ram Pickup 2500 | 35.0 gal | Not rated |
| 2000 Ram Pickup 2500 | 34.0–35.0 gal | Not rated |
| 1999 Ram Pickup 2500 | 34.0–35.0 gal | Not rated |
| 1998 Ram Pickup 2500 | 34.0–35.0 gal | Not rated |
| 1997 Ram Pickup 2500 | 26.0–35.0 gal | Not rated |
| 1996 Ram Pickup 2500 | 26.0–35.0 gal | 525 mi |
| 1995 Ram Pickup 2500 | 35.0 gal | 525 mi |
| 1994 Ram Pickup 2500 | 35.0 gal | 525 mi |
Frequently asked questions
What is the fuel tank capacity of the 1998 Dodge Ram Pickup 2500?
The 1998 Dodge Ram Pickup 2500 holds between 34.0 and 35.0 gallons, depending on the trim. 35.0 gallons is the usual size; the smaller 34.0-gallon tank is on the Laramie SLT 2dr Extended Cab 4WD SB.
How many gallons and liters does the 1998 Dodge Ram Pickup 2500 gas tank hold?
The 1998 Dodge Ram Pickup 2500 tank holds 129–132 liters, or 34.0–35.0 gallons in US gallons.
Which 1998 Dodge Ram Pickup 2500 has the biggest gas tank?
The 35.0-gallon tank is on the Laramie SLT 2dr Extended Cab 4WD LB, Laramie SLT 2dr Extended Cab LB, Laramie SLT 2dr Regular Cab 4WD LB and 9 other trims. The smallest tank, 34.0 gallons, is on the Laramie SLT 2dr Extended Cab 4WD SB.
Does 4WD change the 1998 Dodge Ram Pickup 2500 gas tank?
No. 4WD and RWD versions of the 1998 Dodge Ram Pickup 2500 use the same 34.0–35.0 gal tank.
What gas does the 1998 Dodge Ram Pickup 2500 take?
Regular unleaded. The label inside the fuel door confirms it for your car.
How much does it cost to fill up a 1998 Dodge Ram Pickup 2500?
At the US average of $4.27 a gallon for regular (EIA, week of October 26, 2026), filling the 35.0-gallon tank from empty costs $149.45. It ranges from $129.50 in the Gulf Coast to $206.15 in California.
How much does a full tank of gas weigh in a 1998 Dodge Ram Pickup 2500?
About 217 pounds for the 35.0-gallon tank. Gasoline weighs roughly 6.2 pounds a gallon.
Sources
- Tank sizes: manufacturer-rated capacities from US-market specifications, checked against independent references. Updated October 2026.
- MPG and range: EPA ratings. Range is tank size times EPA MPG.
- Fuel prices: U.S. Energy Information Administration, week of October 26, 2026 (this week's prices).
Does your owner's manual say something different? Let us know and we'll fix it. More on how we check the numbers.