Subaru Legacy Oil Type & Capacity
Factory manual oil type & capacity for the Subaru Legacy. Exact capacities and specs extracted from the LEMON service manual archive.
Last updated: 2026-11-03 • Reading time: 8 min • By AllOEMManuals Editorial Team
Quick Answer
2023-2024 Subaru Legacy uses 4.40 QTS. (4.16 L) — ILSAC GF-5 or GF-6A, API - SAE 0W-20 Synthetic Engine Oil Note: If 0W-20 synthetic oil is not available, 5W-30 conventional oil may be used if replenishment is needed but should be changed to 0W-20 synthetic oil at the next oil change..
| Generation | Years | Top spec |
|---|---|---|
| 2023-2024 | 2023-2024 | 4.40 QTS. (4.16 L) — ILSAC GF-5 or GF-6A, API - SAE 0W-20 Synthetic Engine Oil Note: If 0W-20 synthetic oil is not available, 5W-30 conventional oil may be used if replenishment is needed but should be changed to 0W-20 synthetic oil at the next oil change. |
| 2020-2022 | 2020-2022 | 4.40 QTS. (4.16 L) — ILSAC GF-4 or GF-5, API - SAE 0W-20 Synthetic Engine Oil Note: If 0W-20 synthetic oil is not available, 5W-30 conventional oil may be used if replenishment is needed but should be changed to 0W-20 synthetic oil at the next oil change. |
| 2015-2019 | 2015-2019 | 4.90 QTS. (4.63 L) — ILSAC GF-4 or GF-5, API - SAE 0W-20 Synthetic Engine Oil Note: If 0W-20 synthetic oil is not available 5W-30 or 5W-40 conventional oil may be used if replenishment is needed but should be changed to 0W-20 synthetic oil at the next oil change. |
This vehicle's factory manual
Subaru Legacy: choose your year, then confirm the engine, trim, or drivetrain to open the available repair and diagnosis sections.
Subaru Legacy maintenance schedule
Know the exact oil type & capacity job for your Subaru Legacy
2023-2024 Subaru Legacy uses 4.40 QTS. (4.16 L) — ILSAC GF-5 or GF-6A, API - SAE 0W-20 Synthetic Engine Oil Note: If 0W-20 synthetic oil is not available, 5W-30 conventional oil may be used if replenishment is needed but should be changed to 0W-20 synthetic oil at the next oil change..
Fluid type and capacity can change by engine, drivetrain, and transmission. Verify the exact branch before filling anything. Once the spec is confirmed, use the supplies and purchase links below to build the full one-trip shopping list before you start the repair.
Exact Vehicle Check
The button opens the factory book for this vehicle. Use the engine picker only when your trim is not the one this page already matched.
2023-2024
- →If 0W-20 synthetic oil is not available, 5W-30 conventional oil may be used if replenishment is needed but should be changed to 0W-20 synthetic oil at the next oil change.
2020-2022
- →If 0W-20 synthetic oil is not available, 5W-30 conventional oil may be used if replenishment is needed but should be changed to 0W-20 synthetic oil at the next oil change.
2015-2019
- →If 0W-20 synthetic oil is not available 5W-30 or 5W-40 conventional oil may be used if replenishment is needed but should be changed to 0W-20 synthetic oil at the next oil change.
- →Your vehicle is designed to use 5W-30 conventional motor oil, however 5W-30 synthetic may be used for optimum engine performance. If you do choose to use synthetic oil, SUBARU recommends that you continue using synthetic for the life of your vehicle.
Parts and supplies
These links search for related products. Check your year, engine, specification, and fitment with the seller before ordering.
Subaru Legacy 0W-20 Oil + Filter
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We earn a small commission if you buy through these links — at zero extra cost to you. These are search results, not verified vehicle-specific recommendations.
Oil Change — Manual's Parts List
Everything for one clean oil change. No extra trips.
- 1Engine OilShop →
0W-20 — get the right number of quarts
- 2Oil FilterShop →
Match to your engine variant
- 3Drain Plug Crush WasherShop →
The #1 cause of post-change leaks
- 4Oil Filter WrenchShop →
Hand-tightened filters seize after heat cycles
- 5Shop Rags / Blue TowelsShop →
6-pack — you will use more than you think
Get everything at once
Search results vary; confirm each item and its fitment before buying.
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One-Trip Shopping List
Recommended supplies and tools for this job, grouped so you can buy everything before the repair starts.
Premium Full Synthetic Oil
Match the viscosity (e.g. 0W-20) to your vehicle spec.
Oil Filter
High-efficiency filter to match your specific engine model.
Oil Drain Pan
Low-profile pan for easy oil collection and disposal.
Filter Wrench
Adjustable or size-specific wrench to remove stuck filters.
Funnel Set
Prevent spills when refilling your engine oil.
Shop Towels
Lint-free towels for spills, dipsticks, and filter surfaces.
Project Essentials
Basic tool sets, gloves, and cleaning supplies for your Subaru Legacy so the job is ready when the parts arrive.
Frequently Asked Questions
- Where is this data from?
- Extracted directly from the LEMON factory service manual archive. Sources are cited per generation.
- What oil type & capacity does a Subaru Legacy use?
- 2023-2024 Subaru Legacy uses 4.40 QTS. (4.16 L) — ILSAC GF-5 or GF-6A, API - SAE 0W-20 Synthetic Engine Oil Note: If 0W-20 synthetic oil is not available, 5W-30 conventional oil may be used if replenishment is needed but should be changed to 0W-20 synthetic oil at the next oil change..
- How much oil does a Subaru Legacy take?
- 4.40 QTS. (4.16 L) — ILSAC GF-5 or GF-6A, API - SAE 0W-20 Synthetic Engine Oil Note: If 0W-20 synthetic oil is not available, 5W-30 conventional oil may be used if replenishment is needed but should be changed to 0W-20 synthetic oil at the next oil change. (2023-2024)
- How often should I change the oil in a Subaru Legacy?
- Most Subaru service manuals recommend oil changes every 5,000–7,500 miles under normal driving conditions. Severe conditions (towing, extreme temperatures, stop-and-go traffic) may require more frequent changes. Verify with your owner's manual for the exact interval.
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Author & Review
Published by AllOEMManuals, founded by Lyndon Bedford, an automotive technician with 20 years of experience. He owned and operated a mechanic shop in Hurst, Texas from 2014 to 2022 and continues hands-on repair work.
Content may combine manual references, general repair templates, and AI-assisted drafting. Confirm the source, vehicle configuration, and applicability before working. Report corrections through our contact page.
Last updated: 2026-11-03