The 2012 Subaru Forester is known for its standard Symmetrical AWD system, excellent reliability, and practical utility. Whether you own a naturally aspirated Forester 2.5X or the turbocharged Forester XT, using the correct engine oil is essential for maintaining performance, fuel economy, and long-term engine durability.
Proper oil maintenance helps protect internal engine components, reduce friction, control operating temperatures, prevent sludge buildup, and maximize engine life. Choosing the correct oil viscosity and following recommended service intervals can help your Forester remain dependable for well over 200,000 miles.
2012 Subaru Forester Oil Type
The recommended oil type depends on which engine is installed in your 2012 Subaru Forester.
- 2.5L FB25 Naturally Aspirated Engine: SAE 0W-20 Full Synthetic
- 2.5L EJ255 Turbocharged Engine (XT): SAE 5W-30 Full Synthetic
Subaru introduced the FB25 engine with improved fuel economy and lower emissions, which is why 0W-20 synthetic oil became the factory recommendation. The turbocharged XT model requires thicker 5W-30 oil to handle higher operating temperatures and turbocharger protection.
Best Choice: Full synthetic motor oil provides superior wear protection, improved cold-start performance, better fuel economy, and enhanced engine cleanliness for all 2012 Subaru Forester models.
2012 Subaru Forester Oil Capacity
Oil capacity varies depending on whether your Forester uses the naturally aspirated FB25 engine or the turbocharged EJ255 engine.
The non-turbo FB25 engine requires approximately 5.5 quarts, while the turbocharged XT engine requires approximately 4.4 quarts when replacing the oil filter.
Important: Always verify the final oil level using the dipstick after refilling. Never rely solely on capacity specifications.
Engine Specifications
Best Oil for 2012 Subaru Forester
Recommended Oil Brands
- Mobil 1 Advanced Fuel Economy
- Pennzoil Platinum Full Synthetic
- Valvoline Advanced Full Synthetic
- Castrol EDGE Full Synthetic
- Subaru Genuine Motor Oil
- Royal Purple High Performance
Benefits of Synthetic Oil
- Superior engine protection
- Improved fuel economy
- Better cold-start performance
- Reduced engine wear
- Cleaner engine internals
- Longer service intervals
2012 Subaru Forester Oil Change Interval
Oil change frequency depends on driving habits, climate, and whether the vehicle is operated under severe conditions.
2012 Subaru Forester Oil Change Cost
Common 2012 Subaru Forester Oil Problems
Excessive Oil Consumption
The FB25 engine used in many 2011–2014 Foresters became known for oil consumption issues. Owners frequently report needing to check oil levels between service intervals.
Low Oil Level Damage
Ignoring oil consumption can eventually lead to severe engine damage. Owners commonly recommend checking oil every 1,000 miles.
Valve Cover Gasket Leaks
Higher-mileage Foresters may develop oil leaks around valve cover gaskets and seals.
Turbo Oil Supply Issues
XT turbocharged models depend heavily on clean oil and proper change intervals to protect the turbocharger assembly.
Signs Your Forester Needs an Oil Change
- Dark or dirty oil
- Engine noise or ticking
- Burning oil smell
- Reduced fuel economy
- Oil warning light
- Rough engine operation
- Visible oil consumption
- Excessive exhaust smoke
Maintenance Tips for Longer Engine Life
- Check oil level at least once per month
- Monitor consumption between oil changes
- Use high-quality synthetic oil
- Replace the oil filter during every service
- Inspect for leaks regularly
- Shorten intervals when driving in severe conditions
- Allow turbocharged models to cool after heavy driving
- Address warning lights immediately
Frequently Asked Questions
How much oil does a 2012 Subaru Forester take?
The 2.5L FB25 engine requires 5.5 quarts, while the turbocharged EJ255 engine requires 4.4 quarts with filter replacement.
What oil type does a 2012 Subaru Forester use?
Non-turbo models use SAE 0W-20, while XT turbo models use SAE 5W-30.
Does the 2012 Subaru Forester have oil consumption issues?
Some FB25-equipped models are known for oil consumption concerns, making routine oil level checks especially important.
Can I use synthetic oil?
Yes. Full synthetic oil is strongly recommended and provides superior engine protection.
How often should oil be changed?
Most owners should change oil every 6,000 miles or 6 months, depending on driving conditions.
What is the oil drain plug torque specification?
The FB25 uses approximately 31 lb-ft, while the EJ255 turbo uses approximately 33 lb-ft.
Final Thoughts
The 2012 Subaru Forester remains one of Subaru’s most practical and durable SUVs. Whether you own the efficient 2.5X or the performance-oriented XT turbo, using the correct oil and maintaining proper oil levels are critical for long-term reliability.
For maximum engine protection, use the factory-recommended oil viscosity, replace the oil filter during every service, and check the oil level regularly—especially on higher-mileage FB25 engines that may consume oil between changes.
Quick Summary
- Non-Turbo Oil Type: SAE 0W-20
- Turbo Oil Type: SAE 5W-30
- FB25 Oil Capacity: 5.5 Quarts
- EJ255 Turbo Capacity: 4.4 Quarts
- Oil Change Interval: 6,000 Miles
- Oil Change Cost: $35–$160
- Common Issue: Oil Consumption
- Best Oil: Full Synthetic