Engine Subaru FB16

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.

The FB family also includes engines: FB20 and FB25.

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.


Start of production 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)
Features DOHC (FB16B)
DOHC, intercooler (FB16F)
Hydraulic lifters no
Timing drive chain
Phase regulator Dual AVCS
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
Engine lifespan, km ~220 000
Weight, kg 125 (FB16B)
140 (FB16F)

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.

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