Benefits

  • Boosts octane by up to 7 RON (70 points)
  • Gain peak performance & acceleration
  • Obtain maximum horsepower
  • Prevents engine damage caused by detonation
  • Suitable for all petrol vehicles
  • Safe for catalytic converters & oxygen sensors

Pro-Strength Octane Booster

Nulon Pro-Strength Octane Booster has been specifically formulated to provide maximum power output for all high performance 2 and 4 stroke engines with injectors or carburettors. This product instantly boosts the octane rating of all types of petrol, including racing fuel. Nulon Pro-Strength also eliminates pinging (detonation) and is the ideal substitute to use in standard unleaded fuels (including E10 bio-fuel) where premium unleaded petrol (PULP) is required.


  • Boosts octane by up to 7 RON (70 points)
  • Gain peak performance & acceleration
  • Maximum horsepower
  • Prevents engine damage caused by detonation
  • Safe for catalytic converters & oxygen sensors

Fuel Rating Before PSO Booster Fuel Rating After PSO Ron Increase
91.6 Unleaded    +PSO 97.0 (5.4 RON increase) 
95 PULP    +PSO 98.1 (3.1 RON increase) 
98.1PULP +PSO 100.4   (2.3RON increase)
96 LRP  +PSO 98.5  (2.5 RON increase)
106.7 Avgas    +PSO 108.4 (1.7 RON increase)

(When used at the maximum recommended treat rate.)

Low RON Fuel

Even though fuel purchased today is sold at a minimum of 91 RON, fuel RON can vary between batches throughout Australia. Without testing the RON rating of the fuel will not be known when filling a vehicle until the car begins to PING or Detonate due to the lower than required RON rating. By adding Nulon PSO it will ensure the fuel exceeds the minimum demand of the engine.


500ml - 1 bottle will treat 60 litres of fuel. Add directly to fuel tank. Prevent contact with paint (if spilt, wash off paintwork immediately).

4 LITRES - 500ml will treat 60 litres of fuel. Add directly to fuel tank. Prevent contact with paint (if spilt, wash off paintwork immediately).

NOTE: For maximum power, it may be necessary to advance the ignition timing.


Avoid contact with eyes or skin. DO NOT SWALLOW. Keep out of reach of children. Combustible. Keep away from heat or flame. Do not breathe vapour. Wash hands thoroughly after use.

First aid instructions

For advice, contact a Poisons Information Centre (Phone e.g. Australia 131 126; New Zealand 0800 764 766) or a doctor (at once). If swallowed, do NOT induce vomiting. If in eyes, hold eyelids apart and wash the eye continuously with running water. If skin contact occurs, wash with running water.


Part numbers

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Pro-Strength Octane Booster
Part No.PSO

500 ml bottle
6 per carton

Barcode: 9311090000124
Pro-Strength Octane Booster
Part No.PSO-4

4 litre drum
Single unit

Barcode: 9311090000469

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