---
product_id: 409792479
title: "Red Line 80301 Limited Slip Friction Modifier - 4 oz."
brand: "red line"
price: "€ 74.96"
currency: EUR
in_stock: true
url: https://www.desertcart.gr/products/409792479-red-line-80301-limited-slip-friction-modifier-4-oz
store_origin: GR
region: Greece
---

# Tunes limited-slip differentials Optimized for 75W90 gear oils 4 oz precision dosing Red Line 80301 Limited Slip Friction Modifier - 4 oz.

**Brand:** red line
**Price:** € 74.96
**Availability:** ✅ In Stock

## Summary

> ⚙️ Unlock your ride’s hidden grip with Red Line finesse!

## Quick Answers

- **What is this?** Red Line 80301 Limited Slip Friction Modifier - 4 oz. by red line
- **How much does it cost?** € 74.96 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.gr](https://www.desertcart.gr/products/409792479-red-line-80301-limited-slip-friction-modifier-4-oz)

## Best For

- red line enthusiasts

## Why This Product

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

## Key Features

- • **Corrosion Defense:** Synthetic formula protects your drivetrain from wear
- • **Effortless Application:** Ready-to-use liquid, no assembly required
- • **Universal Compatibility:** Seamlessly blends with any gear oil, no hassle
- • **Precision Performance Boost:** 4 oz bottle designed for exact additive control
- • **Tailored Limited-Slip Tuning:** Fine-tune your differential for peak traction

## Overview

Red Line 80301 Limited Slip Friction Modifier is a synthetic 4 oz liquid additive engineered to replace standard limited-slip additives. Compatible with all 75W90 gear oils, it fine-tunes limited-slip differentials while preventing corrosion, ensuring enhanced traction and drivetrain longevity without any assembly.

## Description

Red Line 80301 Limited Slip Friction Modifier - 4 oz.

## Features

- Replaces the limited-slip additives
- Can be added to any gear oil
- Ideal to tune a limited-slip unit

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Material | Synthetic |
| Brand | Red Line |
| Package Information | Bottle |
| Liquid Volume | 4 Fluid Ounces |
| Recommended Uses For Product | Limited-slip differentials, Differential break-in |
| Viscosity | 75W90 |
| Specific Uses For Product | Prevent Corrosion |
| Item Form | Liquid |
| Global Trade Identification Number | 00083522803014 |
| Manufacturer | Red Line |
| UPC | 083522803014 |
| Number of Items | 1 |
| Product Dimensions | 5.97 x 5.72 x 11.94 cm; 110 g |
| Item model number | 80301 |
| Manufacturer Part Number | 80301 |
| OEM Part Number | 80301 |
| Colour | Red |
| Assembly Required | No |
| Item Weight | 110 g |

## Product Details

- **Material:** Synthetic
- **Brand:** Red Line
- **Package Information:** Bottle
- **Liquid Volume:** 4 Fluid Ounces
- **Recommended Uses For Product:** Limited-slip differentials, Differential break-in

## Images

![Red Line 80301 Limited Slip Friction Modifier - 4 oz. - Image 1](https://m.media-amazon.com/images/I/71auZeP6jKL.jpg)
![Red Line 80301 Limited Slip Friction Modifier - 4 oz. - Image 2](https://m.media-amazon.com/images/I/81TPVqxAqeL.jpg)
![Red Line 80301 Limited Slip Friction Modifier - 4 oz. - Image 3](https://m.media-amazon.com/images/I/810gACQMFNL.jpg)
![Red Line 80301 Limited Slip Friction Modifier - 4 oz. - Image 4](https://m.media-amazon.com/images/I/81owXIUH2ML.jpg)
![Red Line 80301 Limited Slip Friction Modifier - 4 oz. - Image 5](https://m.media-amazon.com/images/I/81KJh4T38wL.jpg)

## Available Options

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

## Questions & Answers

**Q: Would the 95 Isuzu 4x4 front differential benefit from this additive? I know the rear limited slip diff does!**
A: No, unless it's a limited slip after market and specifies such. On the rear positive,  too much would cause slippage between the plates.  Just ad enough to stop the clanging.  Too much would lesson the Limited slip .

**Q: Can this be used in redlline dct fluid that is used in a manual tranmission with lsd?**
A: It was purchased for my son.  I didn't use it.  My son is a car mechanic, so I think it is a good product.

**Q: Would this help a 95 Isuzu front 4x4 differential? ...that chatters around corners on pavement?**
A: Check your u-joints but if there ok. Let me know if it worked. Differential Gear oil is supposed to be replaced on a regular Preventative maintenance Schedule. I don’t know what the mileage is on your car is but it couldn’t hurt “unless your vehicle is not a LSD Diff.” Thanks!

**Q: do I need that for my 99 chevy express 1500 V8  with amsoil 80W90 together?**
A: My chevy Silverado 2500HD ran better after adding a 4oz. can of Redline with the rear gear oil. There is also an additive for the transfer case GM put in during a service. I would double check before putting that in the transfer case. Keep on reading, you'll find the answer. Good Luck

## Frequently Bought Together

- Red Line 80301 Limited Slip Friction Modifier - 4 oz.
- Sealey AK54 550ml Oil Suction Syringe, Multicoloured

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**Shop now:** [https://www.desertcart.gr/products/409792479-red-line-80301-limited-slip-friction-modifier-4-oz](https://www.desertcart.gr/products/409792479-red-line-80301-limited-slip-friction-modifier-4-oz)

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*Product available on Desertcart Greece*
*Store origin: GR*
*Last updated: 2026-02-03*