---
product_id: 3589896
title: "Genuine Ford Fluid XL-3 Friction Modifier Additive - 4 oz."
brand: "motorcraft"
price: "€ 33.64"
currency: EUR
in_stock: true
reviews_count: 13
category: "Motorcraft"
url: https://www.desertcart.sk/products/3589896-genuine-ford-fluid-xl-3-friction-modifier-additive-4-oz
store_origin: SK
region: Slovakia
---

# reduces differential chatter 4 oz precision dosing formulated for automotive lubricants Genuine Ford Fluid XL-3 Friction Modifier Additive - 4 oz.

**Brand:** motorcraft
**Price:** € 33.64
**Availability:** ✅ In Stock

## Summary

> ⚙️ Drive Quiet, Drive Confident: The Ford Fluid XL-3 Advantage

## Quick Answers

- **What is this?** Genuine Ford Fluid XL-3 Friction Modifier Additive - 4 oz. by motorcraft
- **How much does it cost?** € 33.64 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sk](https://www.desertcart.sk/products/3589896-genuine-ford-fluid-xl-3-friction-modifier-additive-4-oz)

## Best For

- motorcraft enthusiasts

## Why This Product

- Trusted motorcraft brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Pro-Grade Formula:** Specifically crafted for automotive use, delivering professional-grade noise reduction and protection.
- • **Silence the Drive:** Effectively reduces limited-slip differential chatter and hypoid gear noise for a smoother ride.
- • **Trusted OEM Quality:** Genuine Ford Fluid XL-3 additive, ensuring compatibility and peak performance.
- • **Precision Engineered:** 4 oz bottle designed for exact dosing per owner’s manual recommendations.
- • **Long-Lasting Performance:** Formulated to reduce surface friction, extending the life of your differential components.

## Overview

Genuine Ford Fluid XL-3 Friction Modifier Additive is a 4 oz automotive-grade formula designed to reduce chatter and hypoid gear noise in limited-slip differentials. Trusted by professionals and Ford OEM standards, it lowers surface friction to enhance differential performance and longevity, making it a must-have for smooth, quiet drives.

## Description

For use on certain limited-slip differentials to reduce chatter and hypoid gear noise levels. Use according to owner guide recommendations.

Review: Ford Genuine Fluid XL-3 Friction Modifier Additive - WOW THIS WORKS GREAT FOR SURE...
Review: Well it's good and it's stinky! - I have a 2000 ford E350 ambulance with a 7.3 powerstroke diesel engine. 3 yrs ago I had to have the rear differential clutch pack replaced. I think he replaced the gears as well. He told me it will chatter a bit but would go away. It did chatter a bit but didn't go away. Recently it has gotten worse so I ordered 2x4oz. bottles of this stuff. It came in 2 separate boxes. I did order them alone due to other reviewers' warning about the smell and they weren't kidding. I also ordered a.big fluid syringe to "inject" it into the pumpkin. I have a prosthetic leg and some back issues due to a disc replacement surgery. This makes it hard for me to get under the truck so I took it to my friends shop. He had one of his young guys do the job for me. I won't lie, I also didn't want to touch the stuff. It stinks. Bad. The whole garage smelled of the stuff even still packed in the boxes. I put it in the side compartment of my van to bring it to the shop. I felt bad, the guy got it all over his hands and i.know it's going to be hard to get off. I hope he is allowed to sleep in the house tonight! Anyway by the time I got home the chatter seems to be.gone. I will have to do some serious sharp turns and reversing on an incline to know for sure, but it already is better doing normal driving with normal turns. I put 8 oz. In because that is what I saw as a recommendation for my differential. Anyway it's good stuff but it stinks. I left the syringe and boxes and empty bottles for him to dispose of!!

## Features

- For use on certain limited-slip differentials to reduce chatter and hypoid gear noise levels
- Use according to owner guide recommendations
- Formulated for automotive use
- Added to lubricants to reduce the surface friction of the lubricated parts

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B000NU5LP6 |
| Best Sellers Rank | #2,866 in Automotive ( See Top 100 in Automotive ) #9 in Engine & Oil Fluid Additives |
| Brand | Motorcraft |
| Customer Reviews | 4.8 4.8 out of 5 stars (3,748) |
| Date First Available | March 4, 2011 |
| Exterior | Painted |
| Is Discontinued By Manufacturer | No |
| Item Weight | 4 ounces |
| Item model number | XL-3 |
| Manufacturer | Rain-X |
| Manufacturer Part Number | XL-3 |
| Model | XL-3 |
| OEM Part Number | 0, XL-3, XL3 |

## Images

![Genuine Ford Fluid XL-3 Friction Modifier Additive - 4 oz. - Image 1](https://m.media-amazon.com/images/I/51GRJTtKa1L.jpg)
![Genuine Ford Fluid XL-3 Friction Modifier Additive - 4 oz. - Image 2](https://m.media-amazon.com/images/I/71bThdqvEbL.jpg)
![Genuine Ford Fluid XL-3 Friction Modifier Additive - 4 oz. - Image 3](https://m.media-amazon.com/images/I/61DgMsQc8eL.jpg)
![Genuine Ford Fluid XL-3 Friction Modifier Additive - 4 oz. - Image 4](https://m.media-amazon.com/images/I/31iLXecXEPL.jpg)

## Available Options

This product comes in different **Size** options.

## Questions & Answers

**Q: So can I use this if I have a noisy diff but a non limited slip?**
A: No, for a noisy diff I would look at a Lucas oil...after you have checked to make sure the noise isn't being caused by the bad news fairy. Take it to tech and have them check the gears. Or crack it open yourself and look for metal shavings.

**Q: does my 2005 4.6L lincoln town car use this? cant find any info**
A: IF your Town Car has a limited slip differential then this fluid is indeed the proper additive if you are going to be renewing the gear oil in your T C.

**Q: can this be used on my 1997 awd mercury mountaineer**
A: This is used for a clutch type rear end?

**Q: must I change differential oil before adding or can I add to oil already in it?**
A: You could add it to the oil that's already in there but you may need to remove some oil to make room. BTW, Diff oil should be changed at 100K.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Ford Genuine Fluid XL-3 Friction Modifier Additive
*by P***O on February 15, 2026*

WOW THIS WORKS GREAT FOR SURE...

### ⭐⭐⭐⭐⭐ Well it's good and it's stinky!
*by B***N on September 26, 2024*

I have a 2000 ford E350 ambulance with a 7.3 powerstroke diesel engine. 3 yrs ago I had to have the rear differential clutch pack replaced. I think he replaced the gears as well. He told me it will chatter a bit but would go away. It did chatter a bit but didn't go away. Recently it has gotten worse so I ordered 2x4oz. bottles of this stuff. It came in 2 separate boxes. I did order them alone due to other reviewers' warning about the smell and they weren't kidding. I also ordered a.big fluid syringe to "inject" it into the pumpkin. I have a prosthetic leg and some back issues due to a disc replacement surgery. This makes it hard for me to get under the truck so I took it to my friends shop. He had one of his young guys do the job for me. I won't lie, I also didn't want to touch the stuff. It stinks. Bad. The whole garage smelled of the stuff even still packed in the boxes. I put it in the side compartment of my van to bring it to the shop. I felt bad, the guy got it all over his hands and i.know it's going to be hard to get off. I hope he is allowed to sleep in the house tonight! Anyway by the time I got home the chatter seems to be.gone. I will have to do some serious sharp turns and reversing on an incline to know for sure, but it already is better doing normal driving with normal turns. I put 8 oz. In because that is what I saw as a recommendation for my differential. Anyway it's good stuff but it stinks. I left the syringe and boxes and empty bottles for him to dispose of!!

### ⭐⭐⭐⭐⭐ Best product....!!!
*by H***R on November 15, 2025*

This stuff is amazing. I will purchase again and use it for any transaxle - slip extender... Silent transaxle.

## Frequently Bought Together

- Genuine Ford Fluid XL-3 Friction Modifier Additive - 4 oz.
- Valvoline FlexFill Advanced Full Synthetic 75W-140 Gear Oil 1 QT Pouch
- Permatex 81182 Gear Oil RTV Gasket Maker, 3 oz (Packaging May Vary)

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*Product available on Desertcart Slovakia*
*Store origin: SK*
*Last updated: 2026-03-07*