I Have changed my two car's from Valvoline 10W-40 to Nulon Full Synthetic 10W-40 Hi-Tech Fast Flowing. I Have been impressed so far. Both cars are Running quiet, not using oil and are obtaining good fuel figures. In my personal experience I Would recommend for anyone to switch (only if compatible for there particular vehicle and with full oil and filter change) and give Nulon a try. (I had been using Valvoline for 30 years so thought long and hard before changing)

I do a fair bit of off road driving that includes heavy sand driving. After changing to Nulon full synthetic oil I found that the oil temp stayed constant even during low range heavy driving and it also stopped the noisy valve lifters on startup. I would recommend this oil to all off-roaders.

I've got a 680hp SR20 2 litre, in a Datsun, use this oil almost religiously, it's well priced compared to other full synthetics, and offers outstanding protection!. Engine has been revved to 8,800rpm and oil samples show the engine is in top condition, as long as it keeps protecting, I'll keep buying. :)

After rebuilding my engine i ran nulon premium mineral 10w40 for the first 500kms. After this I went to the Nulon full synthetic 10w40. You could feel instantly how incredibly smoother it was compare to its mineral conterpart. After feeling the difference I would not use anything but full synthetic from that day onwards.

I have been using this oil (MB 229.3) now for over 3 years and never had a problem. The engine is quiet, runs smoothly and provides good fuel economy. The 6 litre bottle is perfect for the Mercedes 271.9 motor which has a capacity of 5.5 litres and is priced well against the more expensive Penrite oil while being every bit as good. Don't even think about that overpriced, overrated Mobil 1.

Been using this on my Mitsubishi Lancer Vrx lancer for the last 5 years and hasn't let me down. Engine is clean, and quite and can hold up to the longest of oil intervals.The oil has been very reliable and I buy a whole heap when on special. Better than Valvoline for sure.

I have been using this oil in my 2002 Holden Berlina V6 (192,000km's on the Clock) for a year now and done 2 oil changes with it, Good quality, Keeps the engine quiet, reaches the top quickly on startup and is reasonably priced (Got it on special for $28 per 5L bottle at Supercheap Auto)

So far the car uses no oil between services and the oil lasts the full 10,000km interval, so i will definitely keep using it for future services.

Swear by this oil, Have been using it for years in my V6 Ecotec VT Berlina. At 275000 KM the engine is still tight and smooth. It's a great lubricant and always lasts well. Great Australian product and reasonably priced. Is available cheap at Coscto, usually pay $30-$40 for 5L.

Excellent quality engine oil from my experiences.

Been using it for years now. My V6 commodore motors have lasted well on this fully synthetic lubricant. I pretty much stck with it. I do lots of long distance driving so i need good quality oil that maintains its viscosity and wont break down.

Can also stretch out oil change intervals compared to base mineral oils with same viscosity ratings etc

Sometimes ive gone to 20,000 klms between changes and it still looks light brown and clear, not black like with mineral oils. No engine noises or oil pressure problems etc

Happy to recommend to anyone who loves their car and wants quality and value for money.

I've been using this oil for the last five years in my 2005 Commodore V8 after I noticed engine noise with the cheap oil used by the local mechanic. Since changing to this oil I've been doing my own maintenance and it still comes out a nice light brown colour at each 10,000km service.

There's been no engine noise, no oil usage, no smoke and the car has 260,000 on the clock. Will continue using this oil to keep my engine in tip top condition.

Usually $65/6L but almost always on special at one of three major retailers for around $50-55. Best I've seen was $27/5L at Supercheap in December 2016.

Started servicing the Camry V6 2001/2 (220k) myself. Chose this Nulon oil. Car has not been this smooth for years! Noises that started appearing the last couple of years have disappeared - it's running smooth as! Will now also try the other products. Support a local.

Been using on my au v8 for over 200,000 ks and my engine has no noise at start up like when I used castrol oil in the first 60,000 ks. Uses no oil and I change oil every 10,000 ks would recommend to use

I have been a long time castrol oil user, I recently wanted to try another oil in my VT Calais as the motor was a bit noisy and i wanted to find a good synthetic now the motor has clicked over to 275,000k's. I went to my local Autobarn store and serviced the car at home, i also grabbed a drift oil filter with the magnet in the bottom of the filter. After the service I was so shocked at the amazing difference! My car ran quieter, smoother more responsive it honestly feels like a different car to drive, I'll be sticking with Nulon for all my cars from now on!
Great protection, car ran smoother, easy to pour, peace of mind.
Not cheap but it's worth every cent!

I have been running this in a 2005 bf falcon from 105000km, now 210000km. It is ran to 10 -12000 km between changes. It is much quieter and healthier sounding than many other similar age & km engines. I also run this oil in a small block chev ski boat with similar results. Both engine build oil pressure quick both hot and cold regardless of the age of the oil.
Ability to buy in 20l