---
product_id: 48069340
title: "Granville 1440A 10K 375ml Boost Stop-Leak Power Steering Fluid"
brand: "granville"
price: "€ 23.80"
currency: EUR
in_stock: true
reviews_count: 13
category: "Granville"
url: https://www.desertcart.it/products/48069340-granville-1440a-10k-375ml-boost-stop-leak-power-steering-fluid
store_origin: IT
region: Italy
---

# Seal conditioning to extend lifespan 10K Boost formula for leak prevention 375ml precision dosing can Granville 1440A 10K 375ml Boost Stop-Leak Power Steering Fluid

**Brand:** granville
**Price:** € 23.80
**Availability:** ✅ In Stock

## Summary

> 🛠️ Stop leaks, save money, and steer with confidence!

## Quick Answers

- **What is this?** Granville 1440A 10K 375ml Boost Stop-Leak Power Steering Fluid by granville
- **How much does it cost?** € 23.80 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.it](https://www.desertcart.it/products/48069340-granville-1440a-10k-375ml-boost-stop-leak-power-steering-fluid)

## Best For

- granville enthusiasts

## Why This Product

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

## Key Features

- • **Seal Revitalizer:** Gently conditions and rejuvenates seals to maintain smooth steering performance over time.
- • **Precision 375ml Can:** Compact, easy-to-use size ensures you add just the right amount—no waste, no mess.
- • **Trusted UK Expertise:** Backed by 40+ years of Granville’s automotive innovation and quality assurance.
- • **DIY Friendly Maintenance:** Empowers you to fix minor leaks without a mechanic, keeping your car in peak condition.
- • **Stop Leaks Before They Start:** Advanced 10K Boost formula targets and seals minor power steering drips, saving costly repairs.

## Overview

Granville 1440A 10K 375ml Boost Stop-Leak Power Steering Fluid is a specialized automotive additive designed to prevent and repair minor leaks in power steering systems. Its unique chemical blend gently conditions seals to extend their life, packaged in a convenient 375ml can for precise application. Trusted by professionals and DIYers alike, this product leverages over four decades of UK-based expertise to keep your steering smooth and leak-free.

## Description

As our vehicles get older, we start to notice those little drips and leaks that weren’t their when it was brand new. You may think that you will need a mechanic to find the cause of the problem, but with the wide range of maintenance product from Granville you may be able to solve the problem yourself.10K Boost Power Steering Stop Leak contains a special blend of chemicals developed to prevent leaks and drips that can be caused by the drying out or shrinking of seals within the steering system. The 375ml can not only helps to prevent and stop any drips and leaks it also gently conditions seals to prolong their life and effectiveness.Granville are a manufacturer of high quality lubricants and automotive chemicals. Granville have a wide range of products and brands which enables them to utilise their knowledge and expertise to create innovate and quality products. With over 40 years of knowledge within the market, this UK based manufacture continuously develops and strives to keep up with the dynamic pace of the automotive industry.

Review: It works as long as you have have an idea - Don't listen to the negative reviews, if used correctly this stuffs brilliant. So firstly,if you have a massive leak or a split hose this stuff won't work, it's not a miracle in a can ! Its not a substitute for replacing knackered and completely worn out parts. However, if you have a drip drip type leak then this could do the job but....I suspect a lot of ppl have been tipping the entire can in to their systems then becoming dumbfounded that the leaks got worse! This stuff is water thing and contains a solvent that revitalises seals , a little drop will do you! Start with just under a quarter of the can make sure the fluid is on the stick. Start car and rotate steering a dozen times, then take for a 15 mins drive , make sure there are some corners and junctions, park car , check for leaks the next day , add a touch more if required
Review: Seems to have improved - I’ve got a slight leak on power steering that makes it a bit stiff when 1st starting car. After about 5 min it usually free up and normal. I’ve tried several leak stop etc and no good. Tried this and after about 1 week of driving its loads better on steering when 1st starting car

## Features

- Harmful if swallowed.
- 10K Boost Power Steering Stop Leak
- Specially designed for power steering systems
- Stops and prevents future leaks
- Gently conditions seals
- 375ml Can

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B007FND570 |
| Best Sellers Rank | 5,300 in Automotive ( See Top 100 in Automotive ) 9 in Hydraulic Oils |
| Brand | Granville |
| Customer Reviews | 4.0 4.0 out of 5 stars (846) |
| Date First Available | 29 Feb. 2012 |
| Item Weight | 380 g |
| Item model number | 1440A |
| Manufacturer | Granville Oil & Chemicals Ltd |
| Manufacturer part number | 1440A |
| Product Dimensions | 2.48 x 2.76 x 5.75 cm; 380 g |

## Product Details

- **Brand:** Granville
- **Liquid volume:** 375 Millilitres
- **Material:** Aluminium
- **Package information:** Tin
- **Recommended uses for product:** Prevents from future leaks

## Images

![Granville 1440A 10K 375ml Boost Stop-Leak Power Steering Fluid - Image 1](https://m.media-amazon.com/images/I/51FOXkVhBJL.jpg)

## Questions & Answers

**Q: Will it work on my peugeot 406td as lucas don't recommend theirs for my car?thanks mr granville**
A: I have had good experiences with Granville Power steering stop leak to cure leaky seals or a noisy power steering pump . I've also tried the Wynns product , but this was too viscous and made the steering stiff, which the Granville product didn't. However, make sure you check where the leak is coming from first. If its past a rubber seal then this is the product to use. If however, its from a metal pipe like the power steering cooler, no stop leak will fix the latter. One of my cars had such a cooler , which was a metal pipe running infront of the power steering unit or even plumbed infront of the radiator. It had simply corroded through due to rust and needed replacing . The stop leak causes the rubber seals to swell and unlike a radiator stop leak, does not plug holes in corroded metal pipe,  regards Dick Turbo

**Q: Will it work on my Vauxhall’s insignia power steering**
A: It worked on my Fiat Ducato Van i had quite a bad Leak on the steering rack so i thought i would spend £10 to see if it worked Rather than £1000 for a new steering rack.
it takes a while to get through so there are not instant results.
may be an idea to remove as much fluid as you can from the reservoir then fill up with the stop leak then top up with fluid  if necessary

**Q: Is it ok for a 96 Bentley Turbo R**
A: It's fine for any car that takes power steering fluid. Mine is a Mercedes 430ML. The power steering pump was noisy. My mechanic said to try this before replacing the pump. It works by softening the seals up again. In mine the noise has gone and everything works beautifully.

**Q: 10k boost power steering stop leak is it ok for Ford Focus**
A: Yes.  100%.

## Customer Reviews

### ⭐⭐⭐⭐⭐ It works as long as you have have an idea
*by R***C on 20 June 2025*

Don't listen to the negative reviews, if used correctly this stuffs brilliant. So firstly,if you have a massive leak or a split hose this stuff won't work, it's not a miracle in a can ! Its not a substitute for replacing knackered and completely worn out parts. However, if you have a drip drip type leak then this could do the job but....I suspect a lot of ppl have been tipping the entire can in to their systems then becoming dumbfounded that the leaks got worse! This stuff is water thing and contains a solvent that revitalises seals , a little drop will do you! Start with just under a quarter of the can make sure the fluid is on the stick. Start car and rotate steering a dozen times, then take for a 15 mins drive , make sure there are some corners and junctions, park car , check for leaks the next day , add a touch more if required

### ⭐⭐⭐⭐ Seems to have improved
*by A***D on 24 June 2024*

I’ve got a slight leak on power steering that makes it a bit stiff when 1st starting car. After about 5 min it usually free up and normal. I’ve tried several leak stop etc and no good. Tried this and after about 1 week of driving its loads better on steering when 1st starting car

### ⭐⭐⭐⭐⭐ It works
*by L***I on 30 July 2023*

It worked for me , previously the ground would get damp with oil after a drive and other bits below power steering hose. Now all bone dry , I highly recommend using a syringe to suck up oil and then putting whole can down there afterwards. Hopefully this will be a long term fix and not just a temporary fix . Edit: 2 months on and still not leaking , brilliant. Edit: over 6 months now and still not leaking

## Frequently Bought Together

- Granville 1440A 10K 375ml Boost Stop-Leak Power Steering Fluid
- Granville 1813A 500ml Power Steering Fluid and Condition

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*Product available on Desertcart Italy*
*Store origin: IT*
*Last updated: 2026-01-26*