2018 Acura RLX Oil capacity
4.5US qt
With filter
- Without filter4.2 US qt
2018 Acura RLX Owner's Manual, PDF page 533
4.5 US qt (4.3 L)Open the manual at this page ↗Added Oct 16, 2026
See where it's printed
Oil capacity (with filter) · All versions · PDF page 533
4.5 US qt (4.3 L)
Oil capacity (without filter) · All versions · PDF page 533
4.2 US qt (4.0 L)
See every quote (2 values)
As printed in the manual
| Applies to | Value | Manual says | Page |
|---|---|---|---|
| All versions | 4.5 US qtwith filter | “4.5 US qt (4.3 L)” | PDF page 533 ↗ |
| All versions | 4.2 US qtwithout filter | “4.2 US qt (4.0 L)” | PDF page 533 ↗ |
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0W-20 full synthetic motor oil
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Acura 0W-20 motor oil
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Check the level before you drive
- Park on level ground. Turn off the engine and follow the waiting period in your owner's manual.
- Pull, wipe, and reinsert the dipstick. Use a clean cloth, then push the dipstick all the way back in.
- Read the level between the marks. Pull it out again. The oil should sit between the upper and lower marks.
- Top up a little at a time, then recheck. Use the specified oil. Don't fill above the upper mark.
A quick level check, not a full oil-change guide. Follow your manual's procedure.
Confirm with your own manual, dipstick or door-jamb label.
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