1998 Lexus SC 300 Gas Tank Size & Fuel Capacity
Fuel tank capacity
20.6gal · 78 L
The 1998 Lexus SC 300 has a fuel tank capacity of 20.6 gallons (78 liters).
A full tank is good for roughly 453 highway miles or 350 miles around town, going by the EPA ratings.
20.6 gal · Bigger than 72% of 1998 models we list.
- By trim
- Gas cap & parts
- Fuel essentials
- Miles per tank
- Fill-up cost
- Other years
- Compared
- Pump & gauge parts
- FAQ
1998 Lexus SC 300 fuel tank capacity by trim
MPG and range are city / highway.
| Trim | Engine | Drive | Tank | MPG city / hwy | Range city / hwy | |
|---|---|---|---|---|---|---|
| 2dr Coupe 3.0L 6cyl 4A · RWD MPG 17 / 22Range 350 / 453 mi | 3.0L 6cyl 4A | RWD | 20.6 gal78 L | 17 / 22 | 350 / 453 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 1998 Lexus SC 300 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 19 MPG, a full 20.6-gallon tank covers about 391 miles.
| Gauge | Gallons | Highway miles | City miles |
|---|---|---|---|
| Full | 20.6 | 453 | 350 |
| 3/4 | 15.5 | 340 | 263 |
| 1/2 | 10.3 | 227 | 175 |
| 1/4 | 5.2 | 113 | 88 |
| 1/8 | 2.6 | 57 | 44 |
Over 15,000 miles a year (the EPA's yearly estimate) this configuration uses about 789 gallons, roughly 38 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
- 19 MPG
- Tailpipe CO2
- 468 g/mi
- Source
- EPA ratings
What it costs to fill up a 1998 Lexus SC 300
$87.96 to fill the 20.6-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 |
|---|---|---|---|---|
| 20.6 gal | Regular | $4.27 | $87.96 | $65.97 |
By region, 20.6-gallon tank
| Region | Regular / gal | Fill from empty |
|---|---|---|
| East Coast | $4.02 | $82.81 |
| Midwest | $4.27 | $87.96 |
| Gulf CoastLowest | $3.70 | $76.22 |
| Rocky Mountain | $4.46 | $91.88 |
| West Coast | $5.42 | $111.65 |
| CaliforniaHighest | $5.89 | $121.33 |
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
- 20.6-gallon tank$87.96
- A year of driving (15,000 mi)$3,371
Starts at the US average for regular; type in what your station charges. For other tank sizes, use the fill-up calculator.
SC 300 tank size in other years
The 1998 SC 300 uses the same 20.6 gal tank as every SC 300 since 1992.
| Model year | Tank | Longest highway range |
|---|---|---|
| 2000 SC 300 | 20.6 gal | 453 mi |
| 1999 SC 300 | 20.6 gal | 453 mi |
| 1998 SC 300 | 20.6 gal | 453 mi |
| 1997 SC 300 | 20.6 gal | 453 mi |
| 1996 SC 300 | 20.6 gal | 453 mi |
| 1995 SC 300 | 20.6 gal | 453 mi |
| 1994 SC 300 | 20.6 gal | 453 mi |
| 1993 SC 300 | 20.6 gal | 433 mi |
1998 Lexus SC 300 vs similar 1998 coupes
The SC 300 has the largest tank of the four 1998 coupes compared here, 20.6 gallons against 20.0 for the Cadillac Eldorado.
| 1998 model | Tank | Longest highway range |
|---|---|---|
| Lexus SC 300 | 20.6 gal | 453 mi |
| Cadillac Eldorado | 20.0 gal | 480 mi |
| Volvo C70 | 18.5 gal | 426 mi |
| Acura CL | 17.2 gal | 499 mi |
Other 1998 coupes of a similar size, one model per brand.
1998 Lexus SC 300 fuel pump and gauge parts
These are the part numbers the makers list for the 1998 Lexus SC 300. 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 1998 Lexus SC 300?
The 1998 Lexus SC 300 holds 20.6 gallons (78 liters).
How many gallons and liters does the 1998 Lexus SC 300 gas tank hold?
The 1998 Lexus SC 300 tank holds 78 liters, or 20.6 gallons in US gallons.
How far can a 1998 Lexus SC 300 go on a full tank?
About 453 miles on the highway and 350 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 1998 Lexus SC 300 go on a quarter tank?
About 113 highway miles or 88 in town from the 20.6-gallon tank, which has roughly 5.2 gallons left at the quarter mark. Gauges aren't exact, so treat that as a guide.
What gas does the 1998 Lexus SC 300 take?
Regular unleaded. The label inside the fuel door confirms it for your car.
How much does it cost to fill up a 1998 Lexus SC 300?
At the US average of $4.27 a gallon for regular (EIA, week of October 26, 2026), filling the 20.6-gallon tank from empty costs $87.96. It ranges from $76.22 in the Gulf Coast to $121.33 in California.
How much does a full tank of gas weigh in a 1998 Lexus SC 300?
About 128 pounds for the 20.6-gallon tank. Gasoline weighs roughly 6.2 pounds a gallon.
Does the 1998 Lexus SC 300 have a bigger gas tank than the Volvo C70?
Yes. The 1998 Lexus SC 300 holds up to 20.6 gallons; the 1998 Volvo C70 holds up to 18.5.
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.