Pro-Strength Octane Booster (PSOB)
Pro-Strength Octane Booster (PSOB)
in 26 offers
The lowest price for Nulon Pro-Strength Octane Booster 500ml PSOB right now is $9.99 at custommustangs.com.au, compared across 19 retailers.
The all-time low was $9.99 on 7 June 2026. That's the lowest price we've ever tracked — a great time to buy.
Prices last updated 7 June 2026.
Nulon Pro-Strength Octane Booster 500ml PSOB
Pro-Strength Octane Booster (PSOB)
Pro-Strength Octane Booster (PSOB)
Last updated at 07/06/2026 14:54:48
Nulon DICXXX Diesel Injector Cleaner
Delivery $20
Nulon Pro-Strength Octane Booster 500ml PSOB
Delivery between 11–19 June $9.90
NULON PSOB Pro Strength Octane Booster 500ml
Nulon PS Octane Booster 500ml PSOB
Delivery between 8–18 June $10.95
Nulon Pro Strength Octane Booster 500ml PSOB
Nulon - Pro Strength Octane Booster 500ml
Nulon Pro Strength Octane Booster 500ml PSOB
Delivery $12.88
Nulon Pro-strength Octane Booster 500ml - Psob
Delivery $5
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Nulon Pro-strength Octane Booster 500ml (psob)
Free delivery
Affiliate Disclosure: We may receive a small commission for purchases made through this link at no extra cost to you. This helps support our site. Thank you!
Nulon Pro-strength Octane Booster 500ml Pso Upgrade Psob Quality
Free delivery
Affiliate Disclosure: We may receive a small commission for purchases made through this link at no extra cost to you. This helps support our site. Thank you!
originally posted on supercheapauto.com.au
I have a 1978 Triumph Bonneville motorbike, which, unlike other older bikes, mine does not like any form of unleaded. It runs rough and pings on load. The original octane rating for the bike is 102, which I believe is the old leaded super. So, with 95 RON and 12mls of octane booster per litre, she runs like a clock, I have a grey exhaust and honey gold spark plugs. I have been told many a time I am wasting my money, but the bike runs excellent on the octane booster, so fingers crossed this doesn't go off the market.
originally posted on supercheapauto.com.au
Have used it for over a year on my engine that was USA built to run on premium unleaded only to find our premium is not as good compared to the stuff in the States. I can verify it works as I did a back to back test. Drove the car with 98 premium and could hear it ping/pink under hard acceleration. Stopped the car and added 250ml to the approx 30litres of fuel I had in the tank and repeated the same driving procedure with no hint of ping/pink. The only residue I found was the brown/red colouring on the spark plugs but that is normal as this is active ingredient (lead replacement).
originally posted on supercheapauto.com.au
Not sure on other cars but in my turbo Subaru the octane booster certainly gives the car more raw power. TBH, the petrol system cleaner by nulon does almost the same job but cleans at the same time. I love then both just wish it was cheaper.
| Quality of Product | 4.7 |
Nulon DICXXX Diesel Injector Cleaner
Delivery $20
Nulon Pro-Strength Octane Booster 500ml PSOB
Delivery between 11–19 June $9.90
NULON PSOB Pro Strength Octane Booster 500ml
Nulon PS Octane Booster 500ml PSOB
Delivery between 8–18 June $10.95
Nulon Pro Strength Octane Booster 500ml PSOB
I have a 1978 Triumph Bonneville motorbike, which, unlike other older bikes, mine does not like any form of unleaded. It runs rough and pings on load. The original octane rating for the bike is 102, which I believe is the old leaded super. So, with 95 RON and 12mls of octane booster per litre, she runs like a clock, I have a grey exhaust and honey gold spark plugs. I have been told many a time I am wasting my money, but the bike runs excellent on the octane booster, so fingers crossed this doesn't go off the market.
Have used it for over a year on my engine that was USA built to run on premium unleaded only to find our premium is not as good compared to the stuff in the States. I can verify it works as I did a back to back test. Drove the car with 98 premium and could hear it ping/pink under hard acceleration. Stopped the car and added 250ml to the approx 30litres of fuel I had in the tank and repeated the same driving procedure with no hint of ping/pink. The only residue I found was the brown/red colouring on the spark plugs but that is normal as this is active ingredient (lead replacement).
Not sure on other cars but in my turbo Subaru the octane booster certainly gives the car more raw power. TBH, the petrol system cleaner by nulon does almost the same job but cleans at the same time. I love then both just wish it was cheaper.
After an unsuccesful attempt to locate Liqui Molly Octane booster. I saw this product and gave it a crack.Poured a bottle of this liquid steriod into the my 2020 C43 AMG.Within 15-20 minutes the engine was purring stronger & louder that it has done for months. The cracking sounds on high revv upshifts and popping sounds on over run & downshifts seemed to have been amplified gloriously as a result of this liquid goody. I rate it!
Nice packaging, but thats it..Tested this product with laboratory equipment,I personally found..Little to no gain even when mixed at double the advised ratio.The aluminium spun bottle is a nice piece tho..
I add this to my 125cc 4 stroke motorbike, and wow there is a noticeable boost throughout the range, especially at the top end. I love this stuff. 5 stars from me :)
Misses bought the wrong fuel, dirty servo sold you average fuel??? grab yourself a bottle of this stuff!!!Had some intermittent pinging from some cheap fuel returning home late one night from work. next morning chucked this in and within a minute of driving could immediately tell the engine was much happier.
Basically I had issues with timing due to Australia’s poor fuel quality.I tried a lot of different octane boosters and even another of nulons octane products and they all didn’t work.Only this product (the one in the metal bottle) actually improved my timing when using 98 pump fuel.All the other octane boosters seem to be designed to make 91fuel in to a more premium fuel but they didn’t seem to work with 98 fuel.I used vehicle diagnostics and logging to see what worked and didn’t work.It’s expensive to keep running this octane booster every tank to keep my timing in check so I’ll be changing my vehicles map to one more suited to Australia’s poor quality fuel.I hope this review helps those with timing issues, especially those using OTS tunes from Europe ... MoreBasically I had issues with timing due to Australia’s poor fuel quality.I tried a lot of different octane boosters and even another of nulons octane products and they all didn’t work.Only this product (the one in the metal bottle) actually improved my timing when using 98 pump fuel.All the other octane boosters seem to be designed to make 91fuel in to a more premium fuel but they didn’t seem to work with 98 fuel.I used vehicle diagnostics and logging to see what worked and didn’t work.It’s expensive to keep running this octane booster every tank to keep my timing in check so I’ll be changing my vehicles map to one more suited to Australia’s poor quality fuel.I hope this review helps those with timing issues, especially those using OTS tunes from Europe and America. (BM3)
I unfortunately ended up getting a less than acceptable quality tank 98 from the pump recently and in a tuned, turbo-charged engine this can end up being really bad. I was getting knocking and pinging well above normal levels on the ECU controller (60-70 out of 100).I grabbed a bottle of this off the shelf as a cheap alternative to removing the fuel tank to drain it completely and have been very happy to see the knocking has dropped to almost nothing again (17 maximum so far) and the engine feels much smoother.I don't know how much difference this would make in a stock standard vehicle but it's made a very noticeable difference in my "toy" car, I couldn't be happier with the result.
Amazing product have used it 5 or 6 times and it works like a treat. Also cleans the injectors! I notice a difference almost straight away very good stuff.Will work for any car unless you’re trying to cheap out on race fuel. Just an FYI, race fuel is leaded, all petrol from the pump is unleaded no matter the octane racing. Maybe think about that before you send your results to the “lab”.Great stuff however, love the product!
| Quality of Product | 4.7 |