I’d love to hear your reasoning to back up the claim that Toyota makes the best gear oil.I’ve changed my diff fluid in orangey so many times I’ve lost count. Between many, many water crossings, burying it in mud, dozens of 600+ mile days, and working on gears I bet I’ve changed the rear 8 times in 80,000 miles. I’ve had chocolate milk twice so I’m glad I did it. I run 75-140 in the rear and 90 in the front. Toyota makes the best gear oil.