1992 Lexus LS 400 Gas Tank Size & Fuel Capacity
Fuel tank capacity
22.5gal · 85 L
The 1992 Lexus LS 400 has a fuel tank capacity of 22.5 gallons (85 liters).
A full tank is good for roughly 473 highway miles or 360 miles around town, going by the EPA ratings.
22.5 gal · Bigger than 81% of 1992 models we list.
- By trim
- Gas cap & parts
- Fuel essentials
- Miles per tank
- Fill-up cost
- Other years
- Compared
- Pump & gauge parts
- FAQ
1992 Lexus LS 400 fuel tank capacity by trim
MPG and range are city / highway.
| Trim | Engine | Drive | Tank | MPG city / hwy | Range city / hwy | |
|---|---|---|---|---|---|---|
| 4dr Sedan 4.0L 8cyl 4A · RWD MPG 16 / 21Range 360 / 473 mi | 4.0L 8cyl 4A | RWD | 22.5 gal85 L | 16 / 21 | 360 / 473 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 1992 Lexus LS 400 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 22.5-gallon tank covers about 405 miles.
| Gauge | Gallons | Highway miles | City miles |
|---|---|---|---|
| Full | 22.5 | 473 | 360 |
| 3/4 | 16.9 | 354 | 270 |
| 1/2 | 11.3 | 236 | 180 |
| 1/4 | 5.6 | 118 | 90 |
| 1/8 | 2.8 | 59 | 45 |
Over 15,000 miles a year (the EPA's yearly estimate) this configuration uses about 833 gallons, roughly 37 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
- 18 MPG
- Tailpipe CO2
- 494 g/mi
- Source
- EPA ratings
What it costs to fill up a 1992 Lexus LS 400
$96.07 to fill the 22.5-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 |
|---|---|---|---|---|
| 22.5 gal | Regular | $4.27 | $96.07 | $72.06 |
By region, 22.5-gallon tank
| Region | Regular / gal | Fill from empty |
|---|---|---|
| East Coast | $4.02 | $90.45 |
| Midwest | $4.27 | $96.07 |
| Gulf CoastLowest | $3.70 | $83.25 |
| Rocky Mountain | $4.46 | $100.35 |
| West Coast | $5.42 | $121.95 |
| CaliforniaHighest | $5.89 | $132.53 |
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
- 22.5-gallon tank$96.07
- A year of driving (15,000 mi)$3,558
Starts at the US average for regular; type in what your station charges. For other tank sizes, use the fill-up calculator.
LS 400 tank size in other years
The 1992 LS 400 uses the same 22.5 gal tank as every LS 400 since 1990.
| Model year | Tank | Longest highway range |
|---|---|---|
| 1997 LS 400 | 22.5 gal | 518 mi |
| 1996 LS 400 | 22.4 gal | 538 mi |
| 1995 LS 400 | 22.5 gal | 518 mi |
| 1994 LS 400 | 22.5 gal | 495 mi |
| 1993 LS 400 | 22.4 gal | 493 mi |
| 1992 LS 400 | 22.5 gal | 473 mi |
| 1991 LS 400 | 22.5 gal | 473 mi |
| 1990 LS 400 | 22.5 gal | 495 mi |
1992 Lexus LS 400 vs similar 1992 sedans
At 22.5 gallons, the LS 400's largest tank ranks fourth of the seven 1992 sedans compared here. The Mercedes-Benz 300-Class carries the most (26.4 gal) and the Cadillac Seville the least (18.8 gal).
| 1992 model | Tank | Longest highway range |
|---|---|---|
| Mercedes-Benz 300-Class | 18.5–26.4 gal | 581 mi |
| BMW 7 Series | 21.5–24.0 gal | 480 mi |
| Jaguar XJ-Series | 21.6–24.0 gal | 464 mi |
| Lexus LS 400 | 22.5 gal | 473 mi |
| INFINITI Q45 | 22.5 gal | 450 mi |
| Audi S4 | 21.1 gal | 464 mi |
| Cadillac Seville | 18.8 gal | 432 mi |
Other 1992 sedans of a similar size, one model per brand.
1992 Lexus LS 400 fuel pump and gauge parts
These are the part numbers the makers list for the 1992 Lexus LS 400. 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 1992 Lexus LS 400?
The 1992 Lexus LS 400 holds 22.5 gallons (85 liters).
How many gallons and liters does the 1992 Lexus LS 400 gas tank hold?
The 1992 Lexus LS 400 tank holds 85 liters, or 22.5 gallons in US gallons.
How far can a 1992 Lexus LS 400 go on a full tank?
About 473 miles on the highway and 360 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 1992 Lexus LS 400 go on a quarter tank?
About 118 highway miles or 90 in town from the 22.5-gallon tank, which has roughly 5.6 gallons left at the quarter mark. Gauges aren't exact, so treat that as a guide.
What gas does the 1992 Lexus LS 400 take?
Regular unleaded. The label inside the fuel door confirms it for your car.
How much does it cost to fill up a 1992 Lexus LS 400?
At the US average of $4.27 a gallon for regular (EIA, week of October 26, 2026), filling the 22.5-gallon tank from empty costs $96.07. It ranges from $83.25 in the Gulf Coast to $132.53 in California.
How much does a full tank of gas weigh in a 1992 Lexus LS 400?
About 140 pounds for the 22.5-gallon tank. Gasoline weighs roughly 6.2 pounds a gallon.
Does the 1992 Lexus LS 400 have a bigger gas tank than the Audi S4?
Yes. The 1992 Lexus LS 400 holds up to 22.5 gallons; the 1992 Audi S4 holds up to 21.1.
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).
Does your owner's manual say something different? Let us know and we'll fix it. More on how we check the numbers.