Fuel tank capacity
19.4gal · 73 L
The 2005 Acura RL has a fuel tank capacity of 19.4 gallons (73 liters).
A full tank is good for roughly 466 highway miles or 310 miles around town, going by the EPA ratings.
19.4 gal · Bigger than 52% of 2005 models we list.
MPG and range are city / highway.
| Trim | Engine | Drive | Tank | MPG city / hwy | Range city / hwy | |
|---|---|---|---|---|---|---|
| 3.5 4dr Sedan 3.5L 6cyl 5A · AWD MPG 16 / 24Range 310 / 466 mi | 3.5L 6cyl 5A | AWD | 19.4 gal73 L | 16 / 24 | 310 / 466 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 19 MPG, a full 19.4-gallon tank covers about 369 miles.
| Gauge | Gallons | Highway miles | City miles |
|---|---|---|---|
| Full | 19.4 | 466 | 310 |
| 3/4 | 14.6 | 349 | 233 |
| 1/2 | 9.7 | 233 | 155 |
| 1/4 | 4.9 | 116 | 78 |
| 1/8 | 2.4 | 58 | 39 |
Over 15,000 miles a year (the EPA's yearly estimate) this configuration uses about 789 gallons, roughly 41 full tanks.
In real driving: owners who log fill-ups at fueleconomy.gov average 23.8 MPG in the RL (6 drivers), about 462 miles on a full 19.4-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.
$102.43 to fill the 19.4-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 |
|---|---|---|---|---|
| 19.4 gal | Premium | $5.28 | $102.43 | $76.82 |
| Region | Premium / gal | Fill from empty |
|---|---|---|
| East Coast | $4.93 | $95.64 |
| Midwest | $5.37 | $104.18 |
| Gulf CoastLowest | $4.57 | $88.66 |
| Rocky Mountain | $5.12 | $99.33 |
| West Coast | $6.08 | $117.95 |
| CaliforniaHighest | $6.36 | $123.38 |
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 2005: 19.4 gal, up from 18.0 gal on the 2004 RL.
| Model year | Tank | Longest highway range |
|---|---|---|
| 2010 RL | 19.4 gal | 427 mi |
| 2009 RL | 19.4 gal | 427 mi |
| 2008 RL | 19.4 gal | 466 mi |
| 2007 RL | 19.4 gal | 466 mi |
| 2006 RL | 19.4 gal | 466 mi |
| 2005 RL | 19.4 gal | 466 mi |
| 2004 RL | 18.0 gal | 396 mi |
| 2003 RL | 18.0 gal | 396 mi |
| 2002 RL | 18.0 gal | 396 mi |
| 2001 RL | 18.0 gal | 396 mi |
| 2000 RL | 18.0 gal | 396 mi |
At 19.4 gallons, the RL's largest tank ranks fourth of the seven 2005 sedans compared here. The INFINITI Q45 carries the most (21.4 gal) and the Cadillac STS the least (17.0 gal).
| 2005 model | Tank | Longest highway range |
|---|---|---|
| INFINITI Q45 | 21.4 gal | 471 mi |
| Mercedes-Benz E-Class | 21.1 gal | 696 mi |
| Audi A6 | 21.1 gal | 506 mi |
| Acura RL | 19.4 gal | 466 mi |
| Jaguar S-Type | 18.4 gal | 460 mi |
| Lincoln LS | 18.0 gal | 432 mi |
| Cadillac STS | 17.0 gal | 391 mi |
Other 2005 sedans of a similar size, one model per brand.
NHTSA lists 1 fuel-system recall for the 2005 Acura RL, out of 11 recalls in total. A recall applies only to the vehicles named in it, so check your VIN.
On certain vehicles, a coil wire inside the fuel pump relay may break, causing the fuel pump to lose power. If the fuel pump becomes inoperative, the engine may not start.
Risk: If the fuel pump loses power while driving, the engine could stall without warning, and a crash could occur.
Remedy: Dealers will inspect and replace the fuel pump relay free of charge. The recall began on april 2, 2007. Owners may contact honda at 1-800-999-1009.
The 2005 Acura RL holds 19.4 gallons (73 liters).
The 2005 Acura RL tank holds 73 liters, or 19.4 gallons in US gallons.
About 466 miles on the highway and 310 miles in town, going from full to empty at its EPA ratings. Expect less in practice, since nobody runs the tank dry.
About 116 highway miles or 78 in town from the 19.4-gallon tank, which has roughly 4.9 gallons left at the quarter mark. Gauges aren't exact, so treat that as a guide.
Drivers who log their fill-ups at fueleconomy.gov average 23.8 MPG in the 2005 Acura RL (6 drivers), which works out to about 462 miles on a full 19.4-gallon tank.
Premium unleaded (recommended). 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 19.4-gallon tank from empty costs $102.43. It ranges from $88.66 in the Gulf Coast to $123.38 in California.
About 120 pounds for the 19.4-gallon tank. Gasoline weighs roughly 6.2 pounds a gallon.
Yes. The 2005 Acura RL holds up to 19.4 gallons; the 2005 Cadillac STS holds up to 17.0.
Yes. NHTSA lists 1 fuel-system recall for the 2005 Acura RL: 07V097000 (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.