How much coolant does a 2021 Outback take?
2.5 L: 9.5 US qt. 2.4 L: 9.2 US qt. SUBARU SUPER COOLANT. Guideline only.
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In-depth guide
2021 Subaru Outback
2021 Outback coolant is SUBARU SUPER COOLANT. The 2.5 L is 9.5 US qt and the 2.4 L is 9.2 US qt. Both figures are guidelines.
| Item | Figure |
|---|---|
| 2.5 L | 9.5 US qt (9.0 L, 7.9 Imp qt). SUBARU SUPER COOLANT. |
| 2.4 L | 9.2 US qt (8.7 L, 7.7 Imp qt). SUBARU SUPER COOLANT. |
Source: owner's manual / last verified 2026-10-16 (Owner's manual publication A2600BE-B, file MSA5M2104B, copyright 2020, edited 2020/10/1. Subaru's manual index lists A2600BE-B as the 2021 Outback book. The same PDF also describes the Legacy. (opens in a new tab)).
Difficulty, time, and cost are estimates when this guide gives them. Torque is a cited figure, or it is left off.
Main source: Owner's manual publication A2600BE-B, file MSA5M2104B, copyright 2020, edited 2020/10/1. Subaru's manual index lists A2600BE-B as the 2021 Outback book. The same PDF also describes the Legacy. (opens in a new tab), Subaru Corporation, published 2020-10-01, read 2026-10-16.
| Item | Figure | Where it comes from |
|---|---|---|
| 2.5 L | 9.5 US qt (9.0 L, 7.9 Imp qt). SUBARU SUPER COOLANT. | Engine coolant capacity |
| 2.4 L | 9.2 US qt (8.7 L, 7.7 Imp qt). SUBARU SUPER COOLANT. | Engine coolant capacity |
2.5 L is 9.5 US qt. 2.4 L is 9.2 US qt.
That is the coolant type cell.
The book says the quantity is only a guideline.
The coolant table is by engine, and the book says it applies to the Legacy and the Outback that use that engine. Oil is on the oil guide.
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Part
SUBARU SUPER COOLANT
9.5 US qt on the 2.5 L, or 9.2 US qt on the 2.4 L. Guideline only.
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2.5 L: 9.5 US qt. 2.4 L: 9.2 US qt. SUBARU SUPER COOLANT. Guideline only.
The table is by engine. The book covers both cars. This page is filed under the Outback.
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These guides cover the same kind of work. Their numbers belong to those vehicles, not to this one.
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