Lexus RX Gas Tank Size & Fuel Capacity by Year
14.5–17.8gal · 55–67 L
Across 3 model years (2024–2026), the Lexus RX has used tanks from 14.5–17.8 gallons. The 2026 model holds 14.5–17.8 gallons.
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How the tank changed over the years
Lexus RX tank size by year
| Year | Tank | Liters | Best highway range | Trims |
|---|---|---|---|---|
| 2026 Lexus RX | 14.5–17.8 gallons | 55–67 L | 585 mi | 19 |
| 2025 Lexus RX | 14.5–17.8 gallons | 55–67 L | 585 mi | 18 |
| 2024 Lexus RX | 14.5–17.8 gallons | 55–67 L | 585 mi | 15 |
Frequently asked questions
What size gas tank does the Lexus RX have?
The 2026 Lexus RX holds 14.5–17.8 gallons. Older years range from 14.5–17.8 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 17.8 gallons.