Penrite Pro Gear Oil - 75W-85, 2.5 Litre
Penrite Pro Gear GL-5 75W-85 is a premium, full synthetic, high performance gear oil suitable for use in both limited a slip and conventional style differentials and transaxles that require API GL-5 specification fluids. Penrite Pro Gear GL-5 75W-85 is formulated with full synthetic base oils and an advanced additives package to provide excellent shear stability and wear protection as well as increased film strength and thermal stability, extending the oil drain interval. The oxidation stable formula will help to keep harmful deposits from forming and to assist in maintaining oil and component cleanliness. Pro Gear GL-5 75W-85 also contains the correct amount of Limslip additive for use in limited slip differentials therefore, requiring no extra additives. To find the manual transmission or diff oil suggested for your vehicle; either add your vehicle to My Garage or check with your manufacturer, vehicle user manual, your local mechanic or head in-store and talk to one of our friendly team.
Penrite Pro Gear GL-5 75W-85 is a premium, full synthetic, high performance gear oil suitable for use in both limited a slip and conventional style differentials and transaxles that require API GL-5 specification fluids. Penrite Pro Gear GL-5 75W-85 is formulated with full synthetic base oils and an advanced additives package to provide excellent shear stability and wear protection as well as increased film strength and thermal stability, extending the oil drain interval. The oxidation stable formula will help to keep harmful deposits from forming and to assist in maintaining oil and component cleanliness. Pro Gear GL-5 75W-85 also contains the correct amount of Limslip additive for use in limited slip differentials therefore, requiring no extra additives. To find the manual transmission or diff oil suggested for your vehicle; either add your vehicle to My Garage or check with your manufacturer, vehicle user manual, your local mechanic or head in-store and talk to one of our friendly team.
Penrite Pro Gear GL-5 75W-85 is a premium, full synthetic, high performance gear oil suitable for use in both limited a slip and conventional style differentials and transaxles that require API GL-5 specification fluids. Penrite Pro Gear GL-5 75W-85 is formulated with full synthetic base oils and an advanced additives package to provide excellent shear stability and wear protection as well as increased film strength and thermal stability, extending the oil drain interval. The oxidation stable formula will help to keep harmful deposits from forming and to assist in maintaining oil and component cleanliness. Pro Gear GL-5 75W-85 also contains the correct amount of Limslip additive for use in limited slip differentials therefore, requiring no extra additives. To find the manual transmission or diff oil suggested for your vehicle; either add your vehicle to My Garage or check with your manufacturer, vehicle user manual, your local mechanic or head in-store and talk to one of our friendly team.
Penrite Pro Gear GL-5 75W-85 is a premium, full synthetic, high performance gear oil suitable for use in both limited a slip and conventional style differentials and transaxles that require API GL-5 specification fluids. Penrite Pro Gear GL-5 75W-85 is formulated with full synthetic base oils and an advanced additives package to provide excellent shear stability and wear protection as well as increased film strength and thermal stability, extending the oil drain interval. The oxidation stable formula will help to keep harmful deposits from forming and to assist in maintaining oil and component cleanliness. Pro Gear GL-5 75W-85 also contains the correct amount of Limslip additive for use in limited slip differentials therefore, requiring no extra additives. To find the manual transmission or diff oil suggested for your vehicle; either add your vehicle to My Garage or check with your manufacturer, vehicle user manual, your local mechanic or head in-store and talk to one of our friendly team.
in 28 offers
The lowest price for Penrite Pro Gear Oil - 75W-85, 2.5 Litre right now is $59.99 at Autobarn, compared across 27 retailers.
The all-time low was $44.99 on 27 Dec 2025 — today's price is 33% above the lowest ever. It has been notably cheaper before — worth setting a price alert.
Prices last updated 12 Aug 2026.
Last updated at 12/08/2026 13:15:11
Penrite Pro Gear GL5 75W-85 Full Synthetic Gear Oil 2.5L PROGL50025
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!
Penrite Pro Gear Gl-5 75W-85 Full Synthetic Gear Oil 2.5L, PROGL50025
Delivery between 19–21 Aug $15
PENRITE PRO GEAR GL5 75W-85 FULL SYNTHETIC GEAR OIL 2.5L PROGL50025
Free delivery between 15–19 Aug
Penrite Pro Gear Gl5 2.5L | PROGL50025
Free delivery
Penrite Pro Gear GL-5 Full Synthetic 75W-85 2.5L - PROGL50025
Penrite Gear Oil FullSyn GL-5 75w-85 2.5L PROGL50025
Delivery between 19–26 Aug $9.70
Penrite Pro Gear GL5 75W-85 Gear Oil 2.5L - PROGL50025
Delivery $9
Penrite Pro Gear GL5 75W-85 Gear Oil 2.5L - PROGL50025
Delivery $12.50
Penrite Pro Gear GL5 75W-85 Gear Oil 2.5L fits MERCEDES-BENZ AMG GT 63 S 4-matic+ (290.689), 53 EQ Boost 4-matic+ (290.661)
Delivery between 17–25 Aug $9.90
Penrite Pro Gear GL5 75W-85 Gear Oil 2.5L - PROGL50025
Delivery $15
originally posted on supercheapauto.com.au
used it for my 2013 Mitsubishi Outlander Aspire transfer case oil which specified GL-5 SAE 80 which is very difficult to find the exact oil. tried contected mitsubishi for the oil they only have 20L for sale.done some research and ended up using this to replace my old oil and have done 2000km since. no issues at all
originally posted on supercheapauto.com.au
Suitable Full Synthetic lubrication for Front & Rear axles for WK 2 JGC's & other 4WD's of similar Caliber where Specified in owners manual.
originally posted on repco.com.au
Use the recommended lubricant in your transaxle or gearbox. Don’t skimp on the price. I used this in my classic Lotus and it improved the gear changes. Using the wrong viscosity’s will affect the speed of changing when cold. This one is good cold and hot
| Viscosity | 75W-85 |
| Base Oil | Full Synthetic |
| API | GL-5 |
Penrite Pro Gear GL5 75W-85 Full Synthetic Gear Oil 2.5L PROGL50025
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!
Penrite Pro Gear Gl-5 75W-85 Full Synthetic Gear Oil 2.5L, PROGL50025
Delivery between 19–21 Aug $15
PENRITE PRO GEAR GL5 75W-85 FULL SYNTHETIC GEAR OIL 2.5L PROGL50025
Free delivery between 15–19 Aug
Penrite Pro Gear Gl5 2.5L | PROGL50025
Free delivery
Penrite Pro Gear GL-5 Full Synthetic 75W-85 2.5L - PROGL50025
used it for my 2013 Mitsubishi Outlander Aspire transfer case oil which specified GL-5 SAE 80 which is very difficult to find the exact oil. tried contected mitsubishi for the oil they only have 20L for sale.done some research and ended up using this to replace my old oil and have done 2000km since. no issues at all
Suitable Full Synthetic lubrication for Front & Rear axles for WK 2 JGC's & other 4WD's of similar Caliber where Specified in owners manual.
Use the recommended lubricant in your transaxle or gearbox. Don’t skimp on the price. I used this in my classic Lotus and it improved the gear changes. Using the wrong viscosity’s will affect the speed of changing when cold. This one is good cold and hot
Good quality product. Made my car run so much smoother.
The best oil! Put it in a Holden VE lsd. Nice and quiet operation.
Hard to find specification for my front diff without paying a fortune from the dealer. Spout included made it much easier. Seems like a quality gear oil. Will use it in the rear diff when I get around to it. 2.5 Ltr bottle is smart. You can do two diffs which are usually 1.1 ltrs each so there's a saving as well.
No good if you need less than multiples of 2.5L. I needed 5.5L for a service, would need to shell out another $70 for the last 500mls required. Returned and refunded
A very high quality oil which works great in my rear LSD diff and the front diff on my VDJ79R Land cruiser.This oil was easy to use my 12 volt transfer pump to get in the diff.I strongly recommend this oil for anyone who needs a high quality Gl-5 rated gear oil.
Great product, great service ,great price, used it before will definitely do it again
Only can state the difference from old to new, but now the bike just glides along it's hilarious. The big twin just thumps along smoooooth. Only needed 130ml so I'll have oil for yonks.
| Viscosity | 75W-85 |
| Base Oil | Full Synthetic |
| API | GL-5 |
