LIQUI MOLY Gear Oil (GL4) SAE 85W-90 | 1 L | Gear oil | Hydraulic oil | SKU: 20016

I recently used Liqui Moly Gear Oil for a rear differential fluid change, and I’m seriously impressed with the results. From the moment I opened the container, I could tell this was a high-quality product. It has that signature Liqui Moly consistency—clean, thick, and formulated to do the job right. After changing out the old fluid and replacing it with this, I immediately noticed a difference. The gears run quieter, and shifting feels smoother—especially under load or when the vehicle’s cold. I’ve driven about 1,000 miles since the change, and performance has remained consistent, even in varying temperatures. One thing I really appreciate is the built-in additive package. Liqui Moly’s reputation for advanced formulas holds true here—it protects against wear, resists foaming, and keeps the differential cool, even during long hauls or heavy towing. Pouring it was simple with the well-designed bottle and spout—no mess, no waste. And yes, it's a bit more expensive than generic gear oil, but the peace of mind and improved performance are absolutely worth it. If you’re serious about maintenance and want long-lasting protection for your transmission or differential, Liqui Moly Gear Oil is a no-brainer. It’s German-engineered excellence in a bottle

I used this for the gear oil in my Pinzgauer, and it is working beautifully. It's true GL-4, which is hard to come by these days. Most of the time bottles will say GL-4 / GL-5 which is NOT GL-4. You have to use GL-4 oil on gearboxes that have yellow metal (like brass) or the components will degrade over time. In a Pinzgauer, be sure to use this oil in the transfer case and the transmission. The differentials and portal boxes can take GL-5.

Best gear oil for a dirt bike gear box!

was delivered in a timely manner and worked as advertised. Good value for the price.

Does exactly what it's supposed to do

I used this oil to service the differential in a VW 01M transmission that was in working order (despite being slightly low on fluid after 18 years/170k miles of service). This is not the synthetic GL4 I originally set out to use, but it seems to be doing just fine in the low load application of my car. I have not noticed any leaks after a few thousand miles, so all seems to be well. My application did not require the full 1L and the nozzle worked well enough to complete my service.

You need it for brass synchro transmissions. They have a nice pull out snorkel for putting. Thanks!

Great

Perfect for my differential, made a noticeable audible difference as well as feeling smoother to drive

Producto de calidad

Tutto ok.

Très satisfait

Buena calidad y rapidez en la entrega