2004 Lexus GS 430 Gas Tank Size & Fuel Capacity
Fuel tank capacity
19.8gal · 75 L
The 2004 Lexus GS 430 has a fuel tank capacity of 19.8 gallons (75 liters).
A full tank is good for roughly 436 highway miles or 317 miles around town, going by the EPA ratings.
19.8 gal · Bigger than 56% of 2004 models we list.
- By trim
- Gas cap & parts
- Fuel essentials
- Miles per tank
- Fill-up cost
- Other years
- Compared
- Pump & gauge parts
- FAQ
2004 Lexus GS 430 fuel tank capacity by trim
MPG and range are city / highway.
| Trim | Engine | Drive | Tank | MPG city / hwy | Range city / hwy | |
|---|---|---|---|---|---|---|
| 4dr Sedan 4.3L 8cyl 5A · RWD MPG 16 / 22Range 317 / 436 mi | 4.3L 8cyl 5A | RWD | 19.8 gal75 L | 16 / 22 | 317 / 436 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 2004 Lexus GS 430 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 18 MPG, a full 19.8-gallon tank covers about 356 miles.
| Gauge | Gallons | Highway miles | City miles |
|---|---|---|---|
| Full | 19.8 | 436 | 317 |
| 3/4 | 14.9 | 327 | 238 |
| 1/2 | 9.9 | 218 | 158 |
| 1/4 | 5.0 | 109 | 79 |
| 1/8 | 2.5 | 54 | 40 |
Over 15,000 miles a year (the EPA's yearly estimate) this configuration uses about 833 gallons, roughly 42 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.
What it costs to fill up a 2004 Lexus GS 430
$104.54 to fill the 19.8-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 |
|---|---|---|---|---|
| 19.8 gal | Premium | $5.28 | $104.54 | $78.41 |
By region, 19.8-gallon tank
| Region | Premium / gal | Fill from empty |
|---|---|---|
| East Coast | $4.93 | $97.61 |
| Midwest | $5.37 | $106.33 |
| Gulf CoastLowest | $4.57 | $90.49 |
| Rocky Mountain | $5.12 | $101.38 |
| West Coast | $6.08 | $120.38 |
| CaliforniaHighest | $6.36 | $125.93 |
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
- 19.8-gallon tank$104.54
- A year of driving (15,000 mi)$4,400
Starts at the US average for premium; type in what your station charges. For other tank sizes, use the fill-up calculator.
GS 430 tank size in other years
The 2004 GS 430 uses the same 19.8 gal tank as every GS 430 since 2001.
| Model year | Tank | Longest highway range |
|---|---|---|
| 2007 GS 430 | 18.8 gal | 432 mi |
| 2006 GS 430 | 18.8 gal | 432 mi |
| 2005 GS 430 | 19.8 gal | 436 mi |
| 2004 GS 430 | 19.8 gal | 436 mi |
| 2003 GS 430 | 19.8 gal | 436 mi |
| 2002 GS 430 | 19.8 gal | 416 mi |
| 2001 GS 430 | 19.8 gal | 416 mi |
2004 Lexus GS 430 vs similar 2004 sedans
At 19.8 gallons, the GS 430's largest tank ranks second of the seven 2004 sedans compared here. The Volvo S80 carries the most (21.1 gal) and the Cadillac CTS-V the least (17.0 gal).
| 2004 model | Tank | Longest highway range |
|---|---|---|
| Volvo S80 | 21.1 gal | 549 mi |
| Lexus GS 430 | 19.8 gal | 436 mi |
| Saab 9-5 | 18.5 gal | 500 mi |
| BMW 5 Series | 18.5 gal | 500 mi |
| Jaguar S-Type | 18.4 gal | 460 mi |
| Lincoln LS | 18.0 gal | 432 mi |
| Cadillac CTS-V | 17.0 gal | 391 mi |
Other 2004 sedans of a similar size, one model per brand.
2004 Lexus GS 430 fuel pump and gauge parts
These are the part numbers the makers list for the 2004 Lexus GS 430. Check the fuel system recalls first: recall repairs are free.
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Frequently asked questions
What is the fuel tank capacity of the 2004 Lexus GS 430?
The 2004 Lexus GS 430 holds 19.8 gallons (75 liters).
How many gallons and liters does the 2004 Lexus GS 430 gas tank hold?
The 2004 Lexus GS 430 tank holds 75 liters, or 19.8 gallons in US gallons.
How far can a 2004 Lexus GS 430 go on a full tank?
About 436 miles on the highway and 317 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 2004 Lexus GS 430 go on a quarter tank?
About 109 highway miles or 79 in town from the 19.8-gallon tank, which has roughly 5.0 gallons left at the quarter mark. Gauges aren't exact, so treat that as a guide.
What gas does the 2004 Lexus GS 430 take?
Premium unleaded (required). The label inside the fuel door confirms it for your car.
How much does it cost to fill up a 2004 Lexus GS 430?
At the US average of $5.28 a gallon for premium (EIA, week of October 26, 2026), filling the 19.8-gallon tank from empty costs $104.54. It ranges from $90.49 in the Gulf Coast to $125.93 in California.
How much does a full tank of gas weigh in a 2004 Lexus GS 430?
About 123 pounds for the 19.8-gallon tank. Gasoline weighs roughly 6.2 pounds a gallon.
Does the 2004 Lexus GS 430 have a bigger gas tank than the Volvo S80?
No. The 2004 Volvo S80 holds up to 21.1 gallons; the 2004 Lexus GS 430 holds up to 19.8.
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.