How much oil does a 2018 Subaru Legacy 2.5 take?
The 2018 Subaru Legacy 2.5 takes about 4.5 quarts (4.3 liters) of engine oil when performing an oil and filter change. Use 0W-20 full-synthetic oil and fill to the full mark on the dipstick after the engine has warmed, then recheck the level to ensure proper lubrication.
Capacity and specifications for the 2.5-liter FB25 engine
The Legacy’s 2.5-liter engine uses an oil capacity of roughly 4.5 quarts (4.3 liters) with a new filter. This figure is commonly cited in Subaru service guides and owner resources for the 2018 model year. Always verify the exact specification in your owner’s manual or on the under-hood label for your market, since regional variations can exist.
Oil type and viscosity recommendations
Subaru typically prescribes 0W-20 synthetic oil for the FB25 engine in most regions, though some markets may allow alternate viscosities in extreme temperatures. Following the official specification for your vehicle ensures proper lubrication, accurate capacity readings, and optimal engine protection. Always check the manual or the oil filler cap for the exact requirement for your car.
Practical guidance for oil changes and level checks
When planning an oil change, budget around 4.5 quarts of oil plus a new filter. After draining and replacing the filter, add oil gradually and check the dipstick with the engine warm and the car on level ground to ensure the level reaches the full mark. Recheck after a few minutes of idle to account for settling.
Regional variations and notes
While 4.5 quarts is the typical capacity for the 2018 Legacy 2.5, regional differences can exist due to differing oil fill procedures, filter choices, or labeling. Always confirm the exact capacity and specification in your country’s Subaru manual or with a dealer to ensure compliance with local guidelines.
Summary
For the 2018 Subaru Legacy 2.5, the standard oil capacity is approximately 4.5 quarts (4.3 liters) with a new filter. Use 0W-20 full-synthetic oil, fill to the full mark on a warmed engine, and recheck to confirm proper level. Always refer to your owner’s manual or local Subaru resources for any region-specific variations.
