I have used Penrite oils in my cars for the last 20 years. I can’t fault the superior protection it gives, nor the value for money. I can’t recommend Penrite products highly enough!!

I've used this engine oil in my car many times, and it has always performed to an excellent standard. It is of excellent quality, and will last easily for up to 10,000 kms as it is fully synthetic. You can actually feel the power and the performance this adds to your cars engine. Worth every dollar you pay for it.

I use HPR 5 and have been for about 8 years now. My 2010 Yamaha R6 has 130000ks on and found this oil has no drop off point especially with the clutch and gear changes. (See my photo below). I always wait till Repco (or other retailers) have a good special like 30% off then it becomes so cheap. Although Penrite have a dedicated motorcycle range, HPR 5 has been tested and proven in my bike so why would I change. I also use Penrite 5w-30 premium mineral in my RX-8 with good reliability so far. Give Penrite a try.

I own a JDM 2004 Honda Civic EP3 type R... This is the ONLY oil I'd choose. VTEC relies so heavily on oil, and this stuff has given me the best results! The engine actually sounds better, it's quieter. I've used other oils, but now I know I shouldn't have

Ive been using this oil since seeing an engine oil comparison test by one of the motor magazines years ago. I switched to Penrite after seeing the wear protection it gave on the these tests. it beat almost all the other oils in the test except for some very very expensive racing oils. Great results. I highly recommend it. I was previously a Mobil 1 and Shell Helix Ultra oil user. This Penrite range of oils is in our three cars and perfoms so well. I change the oil every 10,000kms and I'm sure it would go for longer. I'm just over cautious and have the time and $$ to do it. :)

My Mazda bus has 298K on the clock, Have used Penrite HPR Deisel for the past four oil changes . The old girl loves it, donk always sounds sweet . Also support Australian companies! Can't supply receipt for purchase as my last one was back in 1018 .

I have always found Penrite oils to be exceptional, and have used them exclusively in my Jeep Grand Cherokee. I am not very fond of the size of the containers available now, as I need 10.5 liters of oil in the engine sump and 4.5 liters in the transmission. It means that I have to purchase make up size containers at an increase in cost. As I wrote at the start Penrite oil products are 5 star. Kindest Regards Denis Kilner

My hybrid love it, even though i went a bit too thick should have went with 10w-30 or 10w40. I'm not sure if Toyota dealer even change my oil as every morning during cold start every time i put it in to gear I have that horrible scary click, now it is out of warranty, so the oil change myself, no more click during cold start and the engine runs quiter, when it needs to run cuz you know.... Hybrid

Using the HPR5 5w/40 in the camry & it's a step up from the Gulf Western that was in it previously.
Kudos to the Penrite live chat people on their website,they are very helpful.
Bargain @ $36 from Supercheap when on sale for the 6 litre container
Next time i'll try the 10 tenths in the camry

This is for a Magna 6G74 engine on LPG. Very poor experience with this oil that I bought based on the certifications listed on the bottle. The used oil had high copper amounts. It makes me question the validity of those claims.

I have a 2004 Corolla that has covered 340,000km, with the original engine, never having been replaced or overhauled. I've used Penrite HPR 5 for the last 3 changes, of which- every 15,000km. The engine is quieter and uses less oil (virtually no oil) compared to the other "fully synthetic" oils I've used. Outstanding product.

Since I purchased my Mitsubishi TL over 4 years ago, and converted to dual fuel, I have not experienced any problem, I now use Penrite for all my lubricating needs, my car is purrrrrrrrrrring like a kitten. So am I,
thank you Penrite!!

the recommended oil as per user manual for f350 7.3 power stroke. either WSS-M2C171-C or CJ4, CI-4 is the older american standard. hope this helps those trying get the right product as even the recommended by thr website doesnt give the accurate. most of time its the older CI-4.

Used HPR5 for over a decade in my old car and it never used a drop of oil between services and ran as good as new. While the formula has changed a bit over the years I now use HPR5 in my new car and again never uses a drop of oil between services and runs nicely. I love Penrite oils and would recommend it over anything else.

Used hpr 5 and loved my engine performance and mileage. Used Penrite engine flush as well when doing oil change. And you what oil is as clean on dipstick after 4000 kms as I have just changed oil now . Simply loved it . Was on special in supercheap bought 2 buckets of 10 litres for myself.

since buying my beautiful landcruiser 2nd hand 165000klms was not sure what oil to use so did a search on your penrite search page and came up with this product. it uses no oil whatsoever and at 5000klms oil still looks brand new dont know what magic you guys are into but it appears that your product is the pinnacle of oil technology. no other product shall go near my baby cruiser ever again even runs cooler as well, you n guys know ur stuff thank you for looking after my vehicle. should reach 500,000 klms without an issue. take care!

Before using this oil I used Royalpurple's HPS.
Royalpurple was a good oil, but oil leakage occurred.
In addition to the property that the engine of my car originally leaks easily, Royalpurple may be caused by PAO base oil.
After exchanging with Penrite HPR, the oil leak has stopped.
Penrite not only seems to have protected the engine by checking whether the oil film is strong, it seems that rise in oil temperature is suppressed as well.
The engine feeling also became smooth and torqueful, so I am really satisfied with changing the oil.
Afterwards it is best if this feeling continues to about 5000 km.
If so, I will also make the next oil change HPR.

Was hunting around for ages for a decent mineral oil, synthetic ones cause some issues with rotary engines (Google it).
Used the engine recommendation tool on their website, and contacted them directly to confirm my research and landed on the HPR 30.
Engine is loving it and I don't think she'll be seeing any other oil from now on.