Product worked great for my 2005 Toyota Tundra limited slip rear diff. I added one bottle of FORD Motorcraft friction modifier and it is performing flawlessly. I am also able to use the same 75W-90 in my transfer case and front diff. I needed 6qts total for all 3 items. I purchased two 1 gallon jugs for a total of 8qts. Free shipping and cheaper than others. I will either purchase 1 gallon next time for my total of 6 qts required or even purchase a bigger bulk order as I will need it anyways.