2021 Lexus IS Fuel Tank Size
2021 Lexus IS fuel tank size: 17.5 gal. From the owner's manual, PDF page 374.
17.5gal
2021 Lexus IS Owner's Manual, PDF page 374
17.5 gal. (66.5 L, 14.6 Imp. gal.)Open the manual at this page ↗Added Oct 24, 2026
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Fuel tank size · All versions · PDF page 374
17.5 gal. (66.5 L, 14.6 Imp. gal.)
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As printed in the manual
| Applies to | Value | Manual says | Page |
|---|---|---|---|
| All versions | 17.5 gal | “17.5 gal. (66.5 L, 14.6 Imp. gal.)” | PDF page 374 ↗ |
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