I’ve got a 2015 3.8 Ultimate, I see a lot of people on the forums for fluids and differentials using the Redline 75W-90 gear oil for the dif. But for LSD’s I haven’t seen anyone using Redline 75W-90 synthetic limited slip gear oil. Is there a reason behind this or am I just miss reading for the other cars with open difs? Lemme know! I’m flushing the trans fluid, dif fluid, brake bleeding, coolant flush, and an oil cooler while she’s on the stands so it’s not up and down off the stands for each.