The official oil capacity for the 2019 Forester’s 2.5 L engine is 5.7 quarts (about 5.4 liters) with a new filter; without the filter, roughly 5.0 quarts (about 4.7 liters). The vehicle typically uses SAE 0W-20 fully synthetic oil. These figures represent standard maintenance procedures for this model year.
Oil capacity specifics for the 2.5L engine
These figures are the guidelines you’ll encounter when planning an oil change or topping off after a drain.
- With oil filter: 5.7 quarts (5.4 liters)
- Without oil filter: 5.0 quarts (4.7 liters)
In practice, start with the maximum recommended amount and then verify the level on a warmed engine using the dipstick. If the level sits below the full line, add small increments until you reach the correct mark. Actual fill can vary slightly depending on the filter brand and how completely the old oil drained.
Oil type and maintenance notes
Subaru generally specifies SAE 0W-20 full-synthetic oil for the 2019 Forester’s 2.5 L engine. This viscosity supports reliable cold-start protection and efficient operation across temperature ranges.
When planning changes, consult the owner's manual for the exact oil specification and the recommended change interval. After an oil change, run the engine to operating temperature, check for leaks, and recheck the level once the engine has cooled.
Recommended oil change practices
Prepare with the right materials: the correct 0W-20 full-synthetic oil, an appropriate oil filter, a drain pan, a new drain plug washer if needed, and a torque wrench to tighten the drain plug to spec. Dispose of used oil responsibly and, if equipped, reset the oil-life monitor.
Summary
The 2019 Subaru Forester with a 2.5 L engine takes 5.7 quarts (5.4 liters) of oil when you replace the filter, or about 5.0 quarts (4.7 liters) if you do not replace the filter. Use SAE 0W-20 full-synthetic oil and follow the manual's guidance on oil change intervals and procedures.