I'm mostly curious to what others think.
My last couple of vehicles I changed out rear diff fluids with Amsoil 75w-140 Severe Gear because they saw use in extreme conditions off road and towing a small travel trailer. They were both Jeep Wranglers with D44 rear axles with LSD. Worked great and never had an issue.
I just bought a new Ford Ranger 4x4 which also has the D44 axle but with an electric locker. It will also see off-road use and trailer towing. Ford specifies 80w-90. My plan is to change out the fluid at around 5,000 miles with the Amsoil 75w-140.
I'm sure it would be fine other than a possible small hit on economy.
Oh, should add that I am in Northern Nevada where it can get hot in the summer and possible to see temps in the low teens in winter.
Thoughts?
My last couple of vehicles I changed out rear diff fluids with Amsoil 75w-140 Severe Gear because they saw use in extreme conditions off road and towing a small travel trailer. They were both Jeep Wranglers with D44 rear axles with LSD. Worked great and never had an issue.
I just bought a new Ford Ranger 4x4 which also has the D44 axle but with an electric locker. It will also see off-road use and trailer towing. Ford specifies 80w-90. My plan is to change out the fluid at around 5,000 miles with the Amsoil 75w-140.
I'm sure it would be fine other than a possible small hit on economy.
Oh, should add that I am in Northern Nevada where it can get hot in the summer and possible to see temps in the low teens in winter.
Thoughts?