The 1.6-liter Subaru FB16B gasoline engine has been produced at the Japanese plant since 2011 and is installed on such popular company models as the Impreza and the crossover XV based on it. This power unit is the smallest and least powerful in its family of motors.
The Subaru FB16F or FB16DIT has been produced since 2014 and is currently only installed on the Levorg sports station wagon, which is popular on the local market. This unit is a typical representative of the third generation of concern turbo engines.
Specifications
| Production years | since 2011 |
| Displacement, cc | 1599 |
| Fuel system | injector |
| Power output, hp | 114 (FB16B) 170 (FB16F) |
| Torque output, Nm | 150 (FB16B) 250 (FB16F) |
| Cylinder block | aluminum H4 |
| Block head | aluminum 16v |
| Cylinder bore, mm | 78.8 |
| Piston stroke, mm | 82 |
| Compression ratio | 10.5 – 11 (FB16B) 11 (FB16F) |
| Hydraulic lifters | no |
| Timing drive | chain |
| Turbocharging | no (FB16B) yes (FB16F) |
| Recommended engine oil | 0W-20 (FB16B) 5W-30 (FB16F) |
| Engine oil capacity, liter | 4.8 |
| Fuel type | petrol |
| Euro standards | EURO 5/6 |
| Fuel consumption, L/100 km (for Subaru Impreza 2012) — city — highway — combined |
9.7 5.7 7.2 |
| Engine lifespan, km | ~220 000 |
| Weight, kg | 125 (FB16B) 140 (FB16F) |
| Features | DOHC (FB16B) DOHC, intercooler (FB16F) |
| Phase regulator | Dual AVCS |
The FB16B was installed on:
- Subaru Impreza 4 (GJ) in 2011 – 2016;
- Subaru Impreza 5 (GK) since 2016;
- Subaru XV 1 (GP) in 2011 – 2017;
- Subaru XV 2 (GT) since 2017.
The FB16F or FB16DIT was installed on:
- Subaru Levorg 1 (VM) in 2014-2020.
Disadvantages of the FB16B engine
- Unlike a similar 2.0 liter engine, this one is not at all prone to oil consumption;
- Use only recommended oil or the phase regulators will fail;
- Monitor the condition of the cooling system, this engine is afraid of overheating;
- With floating idle, look towards the throttle;
- Even a small drop in the level of lubrication can cause the liners to rotate.
Disadvantages of the FB16DIT engine
- Like most direct injection engines, this one is sensitive to fuel quality;
- From bad gasoline, injectors, lambda probes, and a catalyst often fail;
- Use only the recommended oil and change it every 5 – 7 thousand km;
- Cheap lubricant quickly affects the state of the AVCS phase control system.
Frequently asked questions about the Subaru FB16
How much power does the Subaru FB16 make?
Power output of the Subaru FB16, hp: 114 (FB16B); 170 (FB16F). Torque, Nm: 150 (FB16B); 250 (FB16F).
How much oil does the Subaru FB16 take and which one?
Engine oil capacity: 4.8 liters. Recommended oil: 0W-20 (FB16B); 5W-30 (FB16F).
Does the Subaru FB16 have a timing belt or chain?
The Subaru FB16 uses a timing chain.
Is the Subaru FB16 turbocharged?
Yes, the Subaru FB16 is turbocharged (no (FB16B); yes (FB16F)).
Does the Subaru FB16 need valve clearance adjustment?
Yes, there are no hydraulic lifters, so the valve clearances have to be checked and adjusted periodically.
How long does the Subaru FB16 last?
The typical lifespan of the Subaru FB16 is ~220 000 km with proper maintenance.
What is the fuel consumption of the Subaru FB16?
Subaru Impreza 2012: city 9.7, highway 5.7, combined 7.2 L/100 km.
What cars was the Subaru FB16 installed on?
Subaru Impreza 4 (GJ) in 2011 - 2016; Subaru Impreza 5 (GK) since 2016; Subaru XV 1 (GP) in 2011 - 2017; Subaru XV 2 (GT) since 2017.
What are the common problems of the Subaru FB16?
Unlike a similar 2.0 liter engine, this one is not at all prone to oil consumption. Use only recommended oil or the phase regulators will fail. All known problems.
