A recent post regarding Lubegard prompted me to review their products. I have a rear differential oil change I need to perform on my 2012 RAM Big Horn 4X4. Owners manual states use of a full synthetic 75W-140 GL-5oil.
I picked up 3 quarts of Mobil 1 75W-140 for this purpose at an AAP that's now closed. Then I saw Lubegard makes their own gear oil additive (in a yellow bottle FWIW). I took the plunge and ordered an 8 Oz. bottle through Amazon planning to add this to the Mobil 1 75W-140. Treatment ratio is 3 ounces per quart of gear oil. Amazon reviews are highly positive FWIW.
My order arrived yesterday. My paradigm was expecting this Lubegard additive to have a similar viscosity as 75W-140 oil. I shook the bottle and it's pretty thin stuff. That's made me put using this Lubegard additive in my truck's rear differential. I question the benefit if this thins out the gear oil too much, out of spec, versus the advertised benefits of using this Liquid Wax Ester. I live in South Texas where we have four months of moderate weather and eight months of hot weather so providing greater heat transfer to lower the temperature in my rear differential sounds like I'm the target audience. Lubricants made with Ester base stocks are lauded here. Mobil 1 makes a point in their description of the gear oil being a wax free formulation as beneficial.
I read through of all of Molakule's dissertation on gear oils and this isn't captured there. I ran searches with Lubegard as the key word and got plenty of hits, but none for this product. So I'd like to hear from folks with firsthand experience with this Lubegard Gear Oil Additive if there are any here. Also I'd like thoughts on whether this Liquix Wax Ester would be in conflict with Mobil 1 75W-140 Wax free formulation.
A web link to the Lubegard Gear Oil additive.
www.lubegard.com
I picked up 3 quarts of Mobil 1 75W-140 for this purpose at an AAP that's now closed. Then I saw Lubegard makes their own gear oil additive (in a yellow bottle FWIW). I took the plunge and ordered an 8 Oz. bottle through Amazon planning to add this to the Mobil 1 75W-140. Treatment ratio is 3 ounces per quart of gear oil. Amazon reviews are highly positive FWIW.
My order arrived yesterday. My paradigm was expecting this Lubegard additive to have a similar viscosity as 75W-140 oil. I shook the bottle and it's pretty thin stuff. That's made me put using this Lubegard additive in my truck's rear differential. I question the benefit if this thins out the gear oil too much, out of spec, versus the advertised benefits of using this Liquid Wax Ester. I live in South Texas where we have four months of moderate weather and eight months of hot weather so providing greater heat transfer to lower the temperature in my rear differential sounds like I'm the target audience. Lubricants made with Ester base stocks are lauded here. Mobil 1 makes a point in their description of the gear oil being a wax free formulation as beneficial.
I read through of all of Molakule's dissertation on gear oils and this isn't captured there. I ran searches with Lubegard as the key word and got plenty of hits, but none for this product. So I'd like to hear from folks with firsthand experience with this Lubegard Gear Oil Additive if there are any here. Also I'd like thoughts on whether this Liquix Wax Ester would be in conflict with Mobil 1 75W-140 Wax free formulation.
A web link to the Lubegard Gear Oil additive.

Gear Fluid Supplement - Lubegard
