Lubegard Gear Oil Additive - Any BITOG User Experience?

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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.

 
Not from personal experience but from personal knowledge of many LubeGard products is that they're probably as good as any other additives on the market. However, I am not so sure that you needed to buy any LG for your differential as the Mobil1 all by itself should be more than sufficient for you application. On the other hand, you're not hurting anything by using LG unless you have a special need for an additive in your differential and you didn't use one.

Just my 2 cents!
 
I've used the Gear supplement a few times. While I think it is good(and won't hurt a thing), their transmission products are the stars. It did smooth out shifting in an old '77 F250 4 spd for me pretty nicely though!
 
"LUBEGARD® GEAR FLUID SUPPLEMENT is designed for use in all manual transmissions, transaxles and final drives that require gear oil. LUBEGARD® contains LXE®, (liquid wax esters) and their derivatives, a blend of high grade petroleum oil, synthetic base oils and a complete anti-wear formula. LUBEGARD® is designed to provide high temperature stability to prevent harmful deposits on synchros and gears...
  • Improves all manual & synchromesh transmission shifting characteristics...
  • Safe for new MTF Fluids"
1. It appears to me this product is primarily an additive for MTF's, but MTF fluids already have a balanced formulation, so I don't see any advantage in using this in MTFs. MTFs require a good dose of Anti-Wear chemistry, not Extreme Pressure chemistry.

2. If the additive is to also be used in highly loaded hypoid differentials, why didn't they use the word "Differential" instead of "final drives?" Seems to me they are being rather "cagey" in their wording. Differentials require Extreme Pressure additive chemistry, not just Anti-Wear chemistry.

3. This gear additive has a low viscosity, so yes it will reduce the viscosity of any fluid it is added to.
 
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.

If you look at the SDS's for Mobil 1 75W90 vs 75W140 you will see the 140 is a very complex formulation - I'd be hesitant to add anything to that mix ...
 
Thanks all, I've shelved the Lubegard Gear Oil additive for now. I take there's no BITOG members that have firsthand experience with this additive unlike many of the Lubegard products.
 
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.

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.
LXE esters are used as additives in ILI formulations, they are not the base stock. This product's base oils are mostly mineral oils (one of those being a Group II rerefined), with some PAO.
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.
I don't think this product was available when I penned those articles. The articles were to show what goes into various gear lubes, and except for some changes in additives, not much has changed.

I don't have to use this product to know it has no place in differentials.

In Texas, I cannot see thinning down a differential lube with some low viscosity additive.
 
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LXE esters are used as additives in ILI formulations, they are not the base stock. This product's base oils are mostly mineral oils (one of those being a Group II rerefined), with some PAO.

I don't think this product was available when I penned those articles. The articles were to show what goes into various gear lubes, and except for some changes in additives, not much has changed.

I don't have to use this product to know it has no place in differentials.

In Texas, I cannot see thinning down a differential lube with some low viscosity additive.

They do sell a limited slip supplement, have done so for a very long while, and I’ve found it to work well in a Dana 70 LSD with 450k. I can’t quantify the benefit of the esters, but they aren’t doing harm it seems.
 
LugeGard still sells a LSD Supplement:
Thanks but this truck doesn't have a limited slip differential. This 4X4 has a dial for 2WD, 4WD Auto, and 4WD Lock. My take is the 4WD Auto feature negates need for a LSD. I 'ver owned vehicles with a LSD and they required the additive.

A number of fully synthetic gear oils seem to have been factory blended with a LSD additive - the Mobil 1 gear oil I purchased has the initials "LS" in the product name. I suppose there's no harm in having a LSD additive present in a vehicle without a LSD?
 
I put it in my new to me 94 F350 rear to help clean anything else up after pulling the cover and spraying w brake cleaner. It will be a short run from Oct to May time frame when we get the camper out. Then a drain and refill with no additives after that, open diff. Gears were in good shape with just typical dirtiness, nothing odd. I am just going to siphon the diff this time and refill, no need to pull the cover I feel.
 
I just added it to my new diff fluid, about 10% treat rate , the rest of the 1.3L are Lucas 75W-140.
I was hoping for a miracle. I have this faint whooping sound from 60 to 70kmh , and the new oil with lubegard did quiet it down but only by a tiny bit. The first 10km it was noisier but it went down a bit the rest of additional 30km drive this far. I will keep monitoring and plan to swap out a new diff oil by end of this year.
 
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