Fuel tank capacity
18.5gal · 70 L
The 2003 Dodge Viper has a fuel tank capacity of 18.5 gallons (70 liters).
A full tank is good for roughly 370 highway miles or 204 miles around town, going by the EPA ratings.
18.5 gal · Smaller than 61% of 2003 models we list.
MPG and range are city / highway.
| Trim | Engine | Drive | Tank | MPG city / hwy | Range city / hwy | |
|---|---|---|---|---|---|---|
| SRT-10 2dr Roadster 8.3L 10cyl 6M · RWD MPG 11 / 20Range 204 / 370 mi | 8.3L 10cyl 6M | RWD | 18.5 gal70 L | 11 / 20 | 204 / 370 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.
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 18.5-gallon tank covers about 259 miles.
| Gauge | Gallons | Highway miles | City miles |
|---|---|---|---|
| Full | 18.5 | 370 | 204 |
| 3/4 | 13.9 | 278 | 153 |
| 1/2 | 9.3 | 185 | 102 |
| 1/4 | 4.6 | 93 | 51 |
| 1/8 | 2.3 | 46 | 25 |
Over 15,000 miles a year (the EPA's yearly estimate) this configuration uses about 1,071 gallons, roughly 58 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.
$97.68 to fill the 18.5-gallon tank from empty with premium, at this week's US average of $5.28 a gallon.
| Tank | Fuel | US avg / gal | From empty | From 1/4 tank |
|---|---|---|---|---|
| 18.5 gal | Premium | $5.28 | $97.68 | $73.26 |
| Region | Premium / gal | Fill from empty |
|---|---|---|
| East Coast | $4.93 | $91.20 |
| Midwest | $5.37 | $99.34 |
| Gulf CoastLowest | $4.57 | $84.55 |
| Rocky Mountain | $5.12 | $94.72 |
| West Coast | $6.08 | $112.48 |
| CaliforniaHighest | $6.36 | $117.66 |
Prices: U.S. Energy Information Administration retail averages for the week of October 26, 2026. This week's prices by state and city.
Starts at the US average for premium; type in what your station charges. For other tank sizes, use the fill-up calculator.
The tank changed for 2003: 18.5 gal, down from 19.0 gal on the 2002 Viper.
| Model year | Tank | Longest highway range |
|---|---|---|
| 2009 Viper | 16.0 gal | 352 mi |
| 2008 Viper | 16.0 gal | 352 mi |
| 2006 Viper | 18.5 gal | 352 mi |
| 2005 Viper | 18.5 gal | 352 mi |
| 2004 Viper | 18.5 gal | 352 mi |
| 2003 Viper | 18.5 gal | 370 mi |
| 2002 Viper | 19.0 gal | 361 mi |
| 2001 Viper | 19.0 gal | 361 mi |
| 2000 Viper | 18.0–18.5 gal | 352 mi |
| 1999 Viper | 19.0 gal | 361 mi |
| 1998 Viper | 19.0 gal | 380 mi |
The Viper has the largest tank of the three 2003 coupes compared here, 18.5 gallons against 16.4 for the Mitsubishi Eclipse Spyder.
| 2003 model | Tank | Longest highway range |
|---|---|---|
| Dodge Viper | 18.5 gal | 370 mi |
| Mitsubishi Eclipse Spyder | 16.4 gal | 459 mi |
| Panoz Esperante | 15.7 gal | Not rated |
Other 2003 coupes of a similar size, one model per brand.
NHTSA lists 1 fuel-system recall for the 2003 Dodge Viper, out of 4 recalls in total. A recall applies only to the vehicles named in it, so check your VIN.
On certain passenger vehicles, the fuel pump wiring may become chafed by an underbody heat shield.
Risk: This could cause the fuel pump fuse to open, resulting in an engine stall, increasing the risk of a crash.
Remedy: Dealers will install a protective wrap on the fuel pump wiring harness and cover the edge of the heat shield. Owner notification began september 9, 2003. Owners should contact daimlerchrysler at 1-800-853-1403.
The 2003 Dodge Viper holds 18.5 gallons (70 liters).
The 2003 Dodge Viper tank holds 70 liters, or 18.5 gallons in US gallons.
About 370 miles on the highway and 204 miles in town, going from full to empty at its EPA ratings. Expect less in practice, since nobody runs the tank dry.
About 93 highway miles or 51 in town from the 18.5-gallon tank, which has roughly 4.6 gallons left at the quarter mark. Gauges aren't exact, so treat that as a guide.
Premium unleaded (required). The label inside the fuel door confirms it for your car.
At the US average of $5.28 a gallon for premium (EIA, week of October 26, 2026), filling the 18.5-gallon tank from empty costs $97.68. It ranges from $84.55 in the Gulf Coast to $117.66 in California.
About 115 pounds for the 18.5-gallon tank. Gasoline weighs roughly 6.2 pounds a gallon.
Yes. The 2003 Dodge Viper holds up to 18.5 gallons; the 2003 Mitsubishi Eclipse Spyder holds up to 16.4.
Yes. NHTSA lists 1 fuel-system recall for the 2003 Dodge Viper: 03V292000 (delivery · fuel pump). Check your VIN at nhtsa.gov/recalls to see if your car is affected.
Does your owner's manual say something different? Let us know and we'll fix it. More on how we check the numbers.