The 2020 Subaru Forester is a popular compact SUV powered by Subaru’s 2.5L FB25 Boxer engine, known for fuel efficiency, AWD capability, and long-term reliability. Proper oil maintenance is essential for engine health and smooth performance.
Using the correct oil type, maintaining proper oil capacity, and following recommended change intervals ensures long engine life and prevents unnecessary wear.
Why Engine Oil Matters in the 2020 Subaru Forester
The Boxer engine design places the pistons horizontally, which requires consistent lubrication across both cylinder banks. Clean oil reduces friction, controls heat, and protects internal components like piston rings and camshafts.
Neglecting oil changes can lead to increased oil consumption, reduced fuel efficiency, and long-term engine wear.
2020 Subaru Forester Oil Type (Recommended)
- Primary recommendation: SAE 0W-20 full synthetic oil
- Alternative (limited use only): SAE 5W-30 in certain conditions
- Specification: API SP / ILSAC GF-6 or newer required
Best Choice: Always use high-quality 0W-20 full synthetic oil for maximum protection and fuel efficiency in the FB25 engine.
2020 Subaru Forester Oil Capacity
Always check the dipstick after filling, as actual oil level may vary slightly depending on filter type and draining method.
2020 Subaru Forester Oil Change Interval
- Normal driving: Every 5,000–7,500 miles
- Severe driving (city traffic, short trips, dust, cold weather): Every 3,000–5,000 miles
- Dealer recommendation: Around 6,000 miles or 6 months
2020 Subaru Forester Oil Change Cost
- DIY: $40 – $75
- Independent shop: $90 – $140
- Dealer service: $120 – $200
Signs You Need an Oil Change
- Engine ticking or knocking noise
- Reduced fuel efficiency
- Dark or dirty engine oil
- Oil level dropping faster than normal
- Check engine or oil warning light
- Rough idle or hesitation
Maintenance Tips for Long Engine Life
- Always use Subaru-approved full synthetic oil
- Replace oil filter at every oil change
- Check oil level every 1,000–2,000 miles
- Avoid hard acceleration on cold starts
- Do oil changes every 5,000–6,000 miles for best longevity
- Inspect for leaks regularly
Frequently Asked Questions (FAQ)
What oil does a 2020 Subaru Forester take?
It uses SAE 0W-20 full synthetic oil for the 2.5L FB25 engine.
How much oil does it hold?
It holds approximately 4.4 quarts with filter change.
Can I use 5W-30 instead of 0W-20?
It is not recommended for regular use. 0W-20 is required for proper engine performance and efficiency.
How often should oil be changed?
Every 5,000–7,500 miles depending on driving conditions.
Is the Forester reliable?
Yes, it is highly reliable when maintained with proper oil and service intervals.
Final Thoughts
The 2020 Subaru Forester delivers excellent reliability and efficiency, but only when maintained correctly. Using 0W-20 full synthetic oil, following proper intervals, and checking oil regularly ensures long engine life and smooth performance.