RAVENOL J1C1109 SAE 75W-90 Gear Oil - VSG Full Synthetic API GL-4 / GL-5 Spec (1 Liter)

I recently replaced the leaky diff cover on my 02 Silverado with a larger capacity cover that has a drain and fill plug. I usually use Amsoil but did not have the time to go to my local distributor to pick it up. I ordered 4 quarts of Ravenol J1C1109 from Amazon and received them in two days. It seems to be a very high quality product. I was pleasantly surprised to see that the bottles have a built in pull out 6 inch tube which made filling the diff a breeze. Time will only tell as to the quality of the product. I will determine that at the next service interval.

I switched to this after three months of a different lube, this is working out much better for me and shifts like OEM at a fraction of what Toyota wants. 2018 Taco 6 speed manual. Have the same brand in my transfer case and all is good.

Good stuff. Specs are perfect for my E90 BMW 325i with open differential. I agree the cap is over engineered but you can easily remove the clear plastic extension so you can use a wide transfer pump hose which is preferred. At the same time, for a manual transmission flush, the over engineered cap works perfect....buy the synthetic 75W oil for a MTF. Car shifts easier...less "rubbery" as described in my Bimmer blogs. Enjoy.

Good viscosity and good replacement for VW Golf 2.0 MkIV manual transmission fluid. The gear oil meets both API GL 4 and GL 5 specifications. No notichiness feeling when shifting gears. This full synthetic fluid should improve cold weather shifting slowness but winter hasn't arrived yet to assess this quality. Ordered 3 1L bottles to ensure I had over 2 bottles of gear oil fluid on hand. The bottles contain their own pull out nozzles, but due to underbody angles while working it can be difficult to squeeze all the gear oil out. Squeeze out the gear oil into another container and pump it into the manual transmission fill hole by using an inexpensive fluid pump from an auto parts store. Saved money by buying this high quality synthetic gear oil and changed out my own fluid in an hour. Did not need to put the vehicle onto a ramp to change the gear oil. Ravenol website has the gear oil specifications available on their website.

I'm meticulous when it comes to maintaining what I drive. I change the fluids on the front differential, rear differential and transfer case every 25K miles and Ravenol is the only fluid I opt for now. Ravenol is some of the best fluids on the market for your vehicle, when applicable.

Pleased with the oil. The spout was a surprise. It extends out. I did not meet a pump as I had expected.

Works great for our 2006 Xterra with an open diff. Just remember, you need 2 bottles

I bought this as an alternative to Porsche OEM for my 2011 Cayenne Turbo. I changed my differential fluid at 50,000 as a preventative due to age. Meets all of the specs and based upon web search, this is a great alternative. Time will tell.