For most 2016 Forester models, the recommended oil is a full-synthetic 0W-20. If your model is the XT with the 2.0-liter turbo, the recommended oil is 5W-30 synthetic. Always confirm with your owner’s manual or the under-hood label for your exact engine.
In 2016, Subaru offered two engine options in the Forester: a naturally aspirated 2.5-liter flat-four and a turbocharged 2.0-liter model used on the XT trim. Oil viscosity and specification are tied to the engine code, so identifying your engine is important to ensure you use the correct oil. Subaru requires synthetic oil that meets API SN or higher and the factory viscosity for your engine. This article breaks down the recommended oil by engine and how to verify which engine is in your car.
Engine options and oil specifications
2.5-liter non-turbo engine (FB25)
For the 2.5-liter Forester, Subaru's recommended oil is synthetic 0W-20. Use a high-quality synthetic engine oil that meets API SN or higher and is approved for Subaru engines. This viscosity supports cold starts and fuel efficiency across typical operating temperatures.
2.0-liter turbo engine (XT)
For the 2.0-liter turbo Forester XT, the recommended oil is synthetic 5W-30. Use oil that meets API SN or higher and Subaru's specification. The turbo engine runs hotter and can benefit from the slightly thicker viscosity to reduce wear in higher-stress conditions.
How to identify your engine and confirm the correct oil
Check the following to ensure you’re using the right oil:
- Find your engine code on the under-hood sticker or in the owner’s manual. The 2.5L is typically FB25; the 2.0L turbo is typically FA20-based.
- Verify your trim and market: some regions offer different specs; always cross-check with the official manual or Subaru technical resources.
- Consult the oil requirement section in the manual near the maintenance schedule.
Using the correct viscosity helps maintain engine efficiency, protect seals, and meet the vehicle's warranty requirements.
For a quick reference, here is the oil by engine at a glance:
- 2.5L engine (FB25): 0W-20 synthetic
- 2.0L turbo engine (XT): 5W-30 synthetic
Always verify with the owner’s manual to confirm the exact viscosity, specification, and any climate restrictions for your specific vehicle.
Maintenance tips and intervals
Oil change intervals can vary based on oil type and driving conditions. With synthetic oil, many 2016 Forester models are designed for longer intervals, but always follow the manual and service reminders from your dealership or maintenance logs.
In severe driving conditions—such as frequent short trips, extreme temperatures, or heavy towing—consider shortening the interval and using Subaru-recommended oils between changes.
Summary
In short: most 2016 Subaru Forester models require synthetic 0W-20 oil for the 2.5L engine, while the 2.0L turbo XT typically requires synthetic 5W-30. Always confirm with the owner's manual or the engine code on the under-hood label, as regional variations may apply. Use oil that meets API SN or higher and Subaru's specifications, and adhere to the recommended maintenance schedule for optimal engine life.