Engine Mazda 13B-MSP

The 1.3-liter Mazda 13B-MSP rotary engine or Renesis 1.3 was assembled from 2003 to 2012 and installed on all modifications of the popular RX-8 sports coupe. This power unit exists in two different generations with slight differences.

The engine was installed on:

  • Mazda RX-8 (SE) in 2003 – 2012.


Production years 2003-2012
Displacement, cc 1308
Fuel system direct injection
Power output, hp 192 – 250
Torque output, Nm 211 – 222
Cylinder block aluminum W2
Block head no
Compression ratio 10
Features Wankel
Phase regulator no
Turbocharging no
Recommended engine oil 5W-30
Engine oil capacity, liter 3.6
Fuel type petrol
Euro standards EURO 4
Fuel consumption, L/100 km (for Mazda RX-8 2008)
— city
— highway
— combined
Engine lifespan, km ~120 000
Weight, kg 112

Disadvantages of the 13B-MSP engine

  • First of all, this engine is characterized by high fuel consumption, and also oil;
  • Also, the unit is demanding on the quality of lubrication, or you will find rapid wear of the apexes;
  • Closer to 80 – 100 thousand kilometers, eccentric shaft liners are often rented;
  • Oil nozzles require regular diagnostics and rarely go more than 50,000 km;
  • Once every 30,000 km it is necessary to replace the spark plugs and usually together with the ignition coils.

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