Interview
Recommended Engine Coolant
In this manual: Interview
~1min read
- When adding coolant, use only demineralized or soft water and never mix hard water with the factory-filled coolant. An improper coolant mixture may cause serious malfunction or engine damage.
- Your engine contains aluminum components and must be protected with an ethylene glycol-based coolant containing phosphates to prevent corrosion and freezing.
- DO NOT USE alcohol- or methanol-based coolant, and do not mix this type of fluid with the recommended coolant.
- For optimum efficiency, do not use a solution containing more than 60% or less than 35% antifreeze.
Observe the mixing ratios shown in the table below.

Information
If you are not sure which mixture to use, use a 50/50 ratio of water and antifreeze, which is the simplest to implement. It can be used at temperatures down to -35°C (-31°F).
Test yourself
A quick Hyundai Tucson quiz: every answer comes with an explanation and a link to the manual page.
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