Lexus IS Gas Tank Size & Fuel Capacity by Year
17.4gal · 66 L
Across 3 model years (2024–2026), the Lexus IS has used tanks from 17.4 gallons. The 2026 model holds 17.4 gallons.
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How the tank changed over the years
Lexus IS tank size by year
| Year | Tank | Liters | Best highway range | Trims |
|---|---|---|---|---|
| 2026 Lexus IS | 17.4 gallons | 66 L | 470 mi | 4 |
| 2025 Lexus IS | 17.4 gallons | 66 L | 539 mi | 13 |
| 2024 Lexus IS | 17.4 gallons | 66 L | 539 mi | 12 |
Frequently asked questions
What size gas tank does the Lexus IS have?
The 2026 Lexus IS holds 17.4 gallons. Older years range from 17.4 gallons; the table has every year.
Has the tank size changed over the years?
Not in the years we list. The largest tank has stayed at 17.4 gallons.