w_howey said:
Amsoil actually recommends the 75w-140 if you are going to tow a trailer with the Jeep.....
His link goes to the main site out of contractual obligations.....
I'm right up the road in NW,IL and I run the 75w-140, absoutely no problems with it what so-ever no matter the climate. The way a multi-weight lube works is just like a multi-weight motor oil... It works like the lower number when cold, and like the larger one when warm. Or the 75w-90 and the 75w-140 both flow like a 75w lube when cold. But at operating temps, the 75w-90 works like a 90w, and the 75w-140 works like a 140w lubricant. The higher number equals out to a thicker viscosity at operating temps....
True on what Amsoil recommends (in their not all inclusive guide) but they also market the W110 as a nice compromise gear oil for light duty towing applications which is what I sometimes do w/ my XJ and KJ's. I wouldn't tow max weight for long distances but it is certainly better than other brand syn gear oils for lighter duty towing applications.
When you click on my sig link it takes you to my own web site but when you go to my store page you are in My store where I do get credit for purchases. I can however get you better pricing if you PM me direct w/ your needs.
"75W110 Applications
AMSOIL SEVERE GEAR® Synthetic EP Lubricants are excellent for severe applications, such as towing, hauling, steep hill driving, commercial use, plowing, racing, off-road use, rapid acceleration, frequent stop-and-go operation and high ambient temperatures.
Higher horsepower, towing and hauling capabilities of modern vehicles make turbo diesel pick-ups, SUVs, vans and delivery/utility vehicles especially prone to severe service. Other severe duty vehicles include light, medium and heavy-duty trucks, buses, heavy equipment, 4X4s, tow trucks, race cars, tractors, and motorhomes."
