Originally Posted by Plimbob
Getting ready to replace the rear diff lube in my son'e 01 Grand, 155,000 miles. What brand would you all suggest?
I am pretty sure it hasn't been changed in 50k.
Thanks for the input.
Tim
I've had good service from Valvoline, Mobil 1, and Supertech. I mostly run Supertech full synthetic. The 75w90 is only about 7 bucks a quart. The 75w140 is about 12. If it is the same price, I'll usually run Valvoline, but the Supertech is good stuff.