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2023 Hyundai Tucson
2023 Tucson coolant capacity is 10.11 US qt of ethylene glycol mix. A low reservoir is topped up with distilled water mixed with antifreeze.
Difficulty, time, and cost are estimates when this guide gives them. Torque is a cited figure, or it is left off.
Main source: 2023 Tucson Owner's Manual NX4a, recommended lubricants and engine coolant. The introduction copyright line is 2022. (opens in a new tab), Hyundai Motor America, published 2022-11-14, read 2026-10-15.
Numbers on this page come from the cited source. Match the engine before you use a capacity or a torque. Do not work under a vehicle held only by a jack.
Phosphate-based ethylene glycol coolant mixed as the table shows
The change itself is assigned to a Hyundai dealer. The top-up in this book is water mixed with antifreeze.
| Item | Figure | Where it comes from |
|---|---|---|
| Coolant capacity | 10.11 US qt (9.57 L). Mixture of antifreeze and water, ethylene glycol base coolant for an aluminum radiator. | Recommended lubricants and capacities |
| Mixture, when mixing | 35% antifreeze at 5 F (-15 C), 40% at -13 F (-25 C), 50% at -31 F (-35 C), and 60% at -49 F (-45 C). Do not use more than 60% or less than 35% antifreeze. If in doubt, a 50% water and 50% antifreeze mix is the easiest. | Recommended coolant, mixture percentage |
| Reservoir level | Between the MAX and MIN marks when the engine is cool. A low level is brought to MAX with distilled or deionized water mixed with antifreeze. | Checking the coolant level |
The lubricants table lists coolant as 10.11 US qt (9.57 L), a mixture of antifreeze and water, ethylene glycol base for an aluminum radiator. The engine has aluminum parts and the text calls for a phosphate-based ethylene glycol coolant.
With the engine cool, the level should be between MAX and MIN. If it is low, add enough distilled or deionized water mixed with antifreeze to reach MAX. If you add coolant often, contact a Hyundai dealer.
The changing-coolant paragraph says to have the coolant changed by an authorized Hyundai dealer according to the maintenance schedule. It does not print a drain procedure.
If the cap is removed after the engine has cooled, wrap it in a thick towel, turn it slowly to the first stop, step back while pressure releases, then press down and continue turning. The information note says a 50 percent water and 50 percent antifreeze mix is the easiest if the ratio is in doubt, because the two quantities are the same.
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Tool
Phosphate-based ethylene glycol coolant mixed as the table shows
The change itself is assigned to a Hyundai dealer. The top-up in this book is water mixed with antifreeze.
Coolant section in the 2023 Tucson owner's manual (opens in a new tab)Search Amazon.com (affiliate link) (opens in a new tab)
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These guides cover the same kind of work. Their numbers belong to those vehicles, not to this one.