Yes. For most Forester models, Subaru’s guidance leans toward using full synthetic oil, typically 0W-20, to protect the engine and optimize efficiency. Always verify the exact specification for your year and engine in the owner’s manual.
Oil type recommendations by year and engine
Below is a concise breakdown of the typical guidance across recent Forester generations, with emphasis on checking your specific model year.
Modern Foresters (approximately 2014–present)
- 0W-20 full synthetic oil is usually the primary specification for engines such as the FA/FB series found in contemporary Foresters sold in the United States and many markets.
- Synthetic oil is preferred for its better cold-start protection, oxidation stability, and longer change intervals compared with conventional oils.
In short, nearly all modern Foresters are designed with synthetic 0W-20 in mind, and this is the safest default choice if you’re unsure about alternatives.
Older models and regional variations
- Some older Forester manuals or certain international markets may list 5W-30 synthetic as an acceptable alternative in specific climates or situations, but this is not universal.
- Conventional oil is generally discouraged for current-generation engines and may not meet warranty expectations; always compare against the exact specification in your manual.
Bottom line: for most owners, 0W-20 synthetic remains the recommended standard, with regional exceptions requiring verification in the manual.
Choosing the right oil for your Forester
Selecting the correct oil involves considering climate, driving habits, and warranty requirements. Here are the key factors to guide your decision.
- Climate and temperature: extremely cold or hot environments may influence viscosity needs, but Subaru’s typical recommendation for recent Foresters remains 0W-20 synthetic in most regions.
- Driving conditions: frequent short trips, heavy traffic, or towing can impact oil life and the recommended change interval; synthetic oil tends to handle these conditions better.
- Warranty and service guidance: using the specification listed in your owner’s manual helps maintain warranty protections and engine longevity.
- Oil type certainty: use a reputable 0W-20 full synthetic oil that meets current API/ILSAC standards (for example, API SN or newer) and Subaru’s own references where applicable.
Consult your owner’s manual or a Subaru-certified technician to confirm the exact oil type and viscosity for your specific Forester model and market.
Maintenance considerations and intervals
Oil choice goes hand in hand with maintenance schedules. Modern Subarus often provide oil-life monitoring and customer-facing guidance that adapts to driving style and conditions, while traditional interval guidelines remain a reference.
- With full synthetic oil, many Forester models are designed for longer intervals between changes under normal driving, though severe driving or high-mileage use may require more frequent changes.
- Always follow the maintenance schedule printed in your manual and heed any alert from an oil-life monitor if equipped.
- Use a high-quality oil filter matched to the synthetic oil you choose to ensure optimal filtration and engine protection.
In all cases, rely on the manual and service recommendations for precise intervals and oil specifications to protect your engine and preserve your warranty.
Summary
For most Subaru Forester owners, full synthetic oil—typically 0W-20—is the recommended default choice. Always verify the exact specification for your year, engine, and market in the owner’s manual, as regional variations can exist. Synthetic oil offers better cold-start protection, oxidation resistance, and longer service intervals when properly used, supporting engine longevity and performance. If you’re unsure, consult a Subaru dealer or trusted service center to confirm the correct viscosity and oil type for your specific Forester.
What color is the hardest to keep clean on the Forester?
Greys/silver (and white & bronze) are always easiest to keep clean externally. Black and the blue will always show the dirt and have to be washed far more often (unless you're already OCD and wash your car often regardless of color, and then this won't be an issue for you).
What kind of oil is best for a Subaru Forester?
For most new Subaru Forester models, the preferred oil is 0W-20 synthetic, engineered to meet the demands of its versatile nature. However, it's essential to note that the correct Subaru Forester oil type may vary. For instance, non-turbo engine models require 0W-20, while turbo engine variants necessitate 5W-30.
Does a Subaru Forester require full synthetic oil?
Subaru designed the Forester's Boxer engine to run best on full synthetic oil. In fact, according to Lubes'N'Greases, almost 90% of new cars in the U.S. in 2023 rolled off the lot requiring synthetic oil. This high-quality lubrication lasts longer, protects better, and helps your Subaru run more efficiently.
What happens if you put non-synthetic oil in a car that takes synthetic?
There is no danger or risk of combustion, and mixing the two types of oil won't harm your engine. However, it's important to note that if you do mix the two, the conventional oil can keep the synthetic from performing to its fullest potential.