Marine Gear Oil 500mlBase Oil: Full SyntheticKey Specifications: API GL-5Synthetic performance and service life. Easy gear engagement at low temperatures. Longer component life.
Marine Gear Oil 500mlBase Oil: Full SyntheticKey Specifications: API GL-5Synthetic performance and service life. Easy gear engagement at low temperatures. Longer component life.
in 31 offers
The lowest price for Penrite Marine Gear Oil - 75W-90, 500ml right now is $9.00 at Repco Auto Parts Smithfield, compared across 22 retailers.
The all-time low was $8.39 on 27 Dec 2025 — today's price is 7% above the lowest ever. That's a little above the best price we've seen.
Prices last updated 7 June 2026.
Penrite Marine Gear Oil - 75W-90, 500ml
Marine Gear Oil 500mlBase Oil: Full SyntheticKey Specifications: API GL-5Synthetic performance and service life. Easy gear engagement at low temperatures. Longer component life.
Marine Gear Oil 500mlBase Oil: Full SyntheticKey Specifications: API GL-5Synthetic performance and service life. Easy gear engagement at low temperatures. Longer component life.
Last updated at 07/06/2026 15:42:10
Penrite Marine Gear Oil 75W-90 500mL - MAR75900005
Delivery $12
Penrite Marine Gear Oil 75W-90 500mL
Delivery between 11–19 June $9.90
Penrite Marine Gear Oil 75W-90 (Full Syn.) 500ml
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!
Marine Gear Oil 75w-90 Full Synthetic
Delivery $10
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 Marine Gear Oil 75w-90 500ml
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!
Penrite 75W-90 Marine Inboard Outboard Gear Oil 500mL | Yamaha, Mercury, Honda
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!
Penrite Outboard Gear Oil Full Synthetic 500ml Gl5 Rated Yamaha
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!
Penrite Marine Gear Oil 75w-90 Full Synthetic 500ml | Mar75900005
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!
Penrite Marine Gear Oil 75W-90 (Full Syn.) 500ml
Delivery between 11–15 June $15
Penrite Marine Gear Oil 75W-90 Full Synthetic 500mL
Delivery between Tue – Wed $15.24
originally posted on supercheapauto.com.au
When it's Australian made and I have always trusted them and they haven't let me down...
originally posted on supercheapauto.com.au
The bottle size is incorrect. Yes I only need 500ml to fill the gearbox. But to squeeze it in from the bottom plug I can't get enough out of one bottle, so I need a second one. Will find need to find the old size bottle next time.The oil looks, smells and runs Fabulous.
originally posted on supercheapauto.com.au
The oil is good. Great for the price. Comes in the perfect size.
| Oil Composition | Full Synthetic |
| SAE | 75W-90 |
| API | GL-5 |
Penrite Marine Gear Oil 75W-90 500mL - MAR75900005
Delivery $12
Penrite Marine Gear Oil 75W-90 500mL
Delivery between 11–19 June $9.90
Penrite Marine Gear Oil 75W-90 (Full Syn.) 500ml
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!
Marine Gear Oil 75w-90 Full Synthetic
Delivery $10
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 Marine Gear Oil 75w-90 500ml
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!
When it's Australian made and I have always trusted them and they haven't let me down...
The bottle size is incorrect. Yes I only need 500ml to fill the gearbox. But to squeeze it in from the bottom plug I can't get enough out of one bottle, so I need a second one. Will find need to find the old size bottle next time.The oil looks, smells and runs Fabulous.
The oil is good. Great for the price. Comes in the perfect size.
Working as described.Handy size bottle.Happy with quality
Penrite 500ml bottle was leaking when courier driver delivered the item, he said he notified repco sales person on collecting it he said it's ok.. I measured it out 375ml was in bottle not happy REPCO!!!!!
This product is great my Gears work better turn better and sound better more lubricated
Another top Quality Penrite Product, in an easy to use bottle. Went to Repco first because they listed marine oils in a google result, couldn't see any on the shelf, waited a while to ask staff but repeatedly got ignored so walked out. BCF also had no stock.
Never failed, good quality for price and highly recommended for small outboard engines.
This is the first time in a long time that ive purchased "anything" from Repco as they are "always" more expensive than anyone else. This was on special.
Handy dispenser container for this marine oil
| Oil Composition | Full Synthetic |
| SAE | 75W-90 |
| API | GL-5 |
