The amount Your 2009 Subaru Legacy can take in oil depends on the size of the engine. The 2.5L engine can take up to 4.2 US quarts of engine oil with a filter. The 3.0L engine can take up to 5.8 US quarts of motor oil. If You want to know what type of oil to use, it also depends on the size of the engine. The 2.5L engine requires SAE 5W-30 for all temperatures. If You live in an area where it is above -4F, then You would use 10W-30 or 10W-40. If it is above 95F, it's recommended to use 10W-50, 20W-40, 20W-50. For the 3.0L, it's recommended to use 10W-30, 10W-40 for temps above -4F. Above 95F, it's recommended to use 10W-50, 20W-40, 20W-50.
Gavin G.
August 29, 2019
The 2009 Subaru Legacy with the 2.5L flat-4 engines (both turboed and non-turboed) takes 4.2 quarts of synthetic oil; while the 3.0L flat-6 takes 5.8 quarts of synthetic oil.
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