---
product_id: 48189308
title: "ATF Additive | 250 ml | Oil additive | SKU: 5135"
brand: "liqui moly"
price: "€ 26.51"
currency: EUR
in_stock: true
reviews_count: 13
category: "Liqui Moly"
url: https://www.desertcart.ie/products/48189308-atf-additive-250-ml-oil-additive-sku-5135
store_origin: IE
region: Ireland
---

# Lasts up to 8L oil volume Protects rubber & plastic seals 250 ml precision dosing ATF Additive | 250 ml | Oil additive | SKU: 5135

**Brand:** liqui moly
**Price:** € 26.51
**Availability:** ✅ In Stock

## Summary

> 🛠️ Keep your gearbox flawless — because your drive deserves the best!

## Quick Answers

- **What is this?** ATF Additive | 250 ml | Oil additive | SKU: 5135 by liqui moly
- **How much does it cost?** € 26.51 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ie](https://www.desertcart.ie/products/48189308-atf-additive-250-ml-oil-additive-sku-5135)

## Best For

- liqui moly enthusiasts

## Why This Product

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

## Key Features

- • **Seal Savior:** Prevents & repairs hardened, brittle seals to stop leaks in transmissions and steering gears.
- • **Efficient Dosage:** 250 ml additive treats up to 8 liters of oil, maximizing value and performance.
- • **Trusted Performance:** Highly rated with 4.6 stars from over 1,500 users who swear by its long-lasting effects.
- • **Eco-Conscious Formula:** Designed with awareness of environmental impact, though handle with care to protect aquatic life.
- • **Optimized Compatibility:** Formulated to care specifically for rubber and plastic components, extending gearbox life.

## Overview

LIQUI MOLY ATF Additive is a 250 ml oil additive expertly engineered to maintain and restore rubber and plastic seals in automatic transmissions and steering gears. By preventing and eliminating leaks caused by hardened seals, it ensures smoother, longer-lasting gearbox performance. One bottle treats up to 8 liters of oil, making it a cost-effective solution trusted by thousands of users worldwide.

## Description

Buy LIQUI MOLY ATF Additive | 250 ml | Oil additive | SKU: 5135 at desertcart UK. Free delivery on eligible orders.

Review: Value for Money - Does exactly what it states on the tube. Follow the instructions ….. takes a day or so to take effect but works fine.
Review: Highly recommended product - I was very worried when I replaced my gearbox oil. Oil had never changed before in my car. I bought the same time ATF from the same brand and mixed it with this additive. Now almost two years and gearbox still is working well. Highly recommended product. Thank you Liquid Molly for the amazing product.

## Features

- Contains 1,3,4-thiadiazole-2(3H)-thione, 5-(tert-dodecyldithio)-. May produce an allergic reaction.
- Harmful to aquatic life with long lasting effects.
- Content: 250ml
- Optimally cares for rubber and plastic seals in steering gears and automatic transmissions
- Leaks on transmissions and gears, caused by hardened and brittle seals, are prevented and eliminated
- The contents of 250 ml are sufficient for up to 8 l oil volume

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B004X63XVU |
| Best Sellers Rank | 18,645 in Automotive ( See Top 100 in Automotive ) 37 in Engine Oil Additives |
| Brand | Liqui Moly |
| Customer Reviews | 4.6 4.6 out of 5 stars (1,524) |
| Date First Available | 19 April 2011 |
| Delivery information | We cannot deliver certain products outside mainland UK ( Details ). We will only be able to confirm if this product can be delivered to your chosen address when you enter your delivery address at checkout. |
| Item Weight | 25.4 g |
| Item model number | 5135 |
| Manufacturer | Liqui Moly GmbH |
| Manufacturer part number | 5135 |
| Model | ATF additives |
| OEM Part Number | 5135 |
| Product Dimensions | 97.61 x 26.01 x 25.2 cm; 25.4 g |

## Images

![ATF Additive | 250 ml | Oil additive | SKU: 5135 - Image 1](https://m.media-amazon.com/images/I/71I03DBzKLL.jpg)

## Questions & Answers

**Q: Can it be used with febi bilstein 29449 automatic transmission fluid (atf) mb 236.14 ?**
A: I don’t know, but the German manufacturers are very fast at replying. Good luck & Keep well.

**Q: It's made the shifts smoother but also added some general vibration/roughness feeling when driving, any idea why?**
A: have you just added additiv to existing oil or you made oil change as well?
we always reccomend to add additive when change oil and we reccomend to use quality oil as if gearbox oil will be poor quality additive will not help it

## Customer Reviews

### ⭐⭐⭐⭐⭐ Value for Money
*by M***E on 20 August 2025*

Does exactly what it states on the tube. Follow the instructions ….. takes a day or so to take effect but works fine.

### ⭐⭐⭐⭐⭐ Highly recommended product
*by R***N on 23 March 2025*

I was very worried when I replaced my gearbox oil. Oil had never changed before in my car. I bought the same time ATF from the same brand and mixed it with this additive. Now almost two years and gearbox still is working well. Highly recommended product. Thank you Liquid Molly for the amazing product.

### ⭐⭐⭐⭐⭐ Great product.
*by D***K on 8 August 2022*

I have tried 3 cans of another propriety product to try and reduce the gearbox ATF leak, to no avail at all ! One tube of this product seems, so far, to have reduced the leak considerably, to almost none. It may be continuing to soften the seals and perform 100%. Update December 2023 this product has saved me £1000's as the gearbox has completely stoped leaking over the last year, it is a amazing product, thank you....

## Frequently Bought Together

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*Product available on Desertcart Ireland*
*Store origin: IE*
*Last updated: 2026-02-01*