---
product_id: 261562323
title: "65934US Diesel Oil Treatment (300 ml)"
brand: "stp"
price: "€ 12.08"
currency: EUR
in_stock: true
reviews_count: 5
category: "Stp"
url: https://www.desertcart.fi/products/261562323-65934us-diesel-oil-treatment-300-ml
store_origin: FI
region: Finland
---

# Reduces oil burning & consumption Boosts oil viscosity by 5% Advanced anti-wear protection 65934US Diesel Oil Treatment (300 ml)

**Brand:** stp
**Price:** € 12.08
**Availability:** ✅ In Stock

## Summary

> 🛢️ Elevate your diesel engine’s performance—because your ride deserves the best!

## Quick Answers

- **What is this?** 65934US Diesel Oil Treatment (300 ml) by stp
- **How much does it cost?** € 12.08 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.fi](https://www.desertcart.fi/products/261562323-65934us-diesel-oil-treatment-300-ml)

## Best For

- stp enthusiasts

## Why This Product

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

## Key Features

- • **Smooth Operator:** Significantly reduces engine noise and friction for a silky ride
- • **Easy Integration:** One 300ml bottle treats up to 6L of diesel oil—simple, effective, no hassle
- • **Engine Armor Upgrade:** Fortifies diesel oil with premium additives for next-level protection
- • **Fuel Efficiency Booster:** Cuts down oil consumption, saving you money and engine stress
- • **Trusted by the Road Warriors:** Proven results on engines with 18,000+ km, keeping your ride young and powerful

## Overview

STP 65934US Diesel Oil Treatment is a 300ml additive designed exclusively for diesel engines, enhancing oil viscosity, reducing wear and friction, and lowering oil consumption. It treats up to 6 liters of diesel oil, delivering smoother engine operation and improved longevity, making it a must-have for professionals who demand peak performance and reliability from their vehicles.

## Description

Oil treatment dieselfor extra engine protection. Stp oil treatment for diesel engines is designed to fortify motor oil with an extra measure of additives, providing increased levels of detergent/dispersant, viscosity improver, anti-wear and anti-friction agents. Directions. One bottle of stp oil treatment for diesel engines will treat 6 litres of diesel oil (5% treat rate). The entire bottle should be added to oil when the engine is warm (but not overfilled). Is it safe to use in my vehicle. Stp oil treatment diesel is not recommended for use in petrol engines. Take note. Not suitable for use in low sap oils. Do not overfill.

Review: STP is really effective products Friends really you trust me is great amazing products. I am using this product in my Xylo E-8 Friends believe me I am 1st time using this product & I just show video's in YouTube so I am oder this product but really after using this product my vehicle voice is totally change & so smoothly running mostly people is thinking after oil change also engine sounds is changing but really if you use STP products so is different results. My vehicle is 5 years old & 18500/Km I am running but after service my XYLO E-8 so really is different to everyone services results. It's totally amazing best product & I really required to everyone if you love you vehicles so you use this STP.
Review: Used in my Ford Figo but didnt see any major improvement in performance. There was bit reduction in noise but not making much of difference. Wont buy next time. Update: seen improvement in car performance after 500 KM of run. Engine is smoother, pickup is good specially at lower speed and higher gear.

## Features

- Improves oil viscosity
- Lubricates and protects moving engine parts
- Reduces oil consumption and burning

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00NW6VUIU |
| Best Sellers Rank | #56,975 in Automotive ( See Top 100 in Automotive ) #246 in Oil & Fluid Additives |
| Brand | STP |
| Customer Reviews | 4.0 4.0 out of 5 stars (99) |
| Date First Available | 21 January 2015 |
| Item Weight | 300 g |
| Item model number | 65934US |
| Manufacturer | ENERGIZER TRADING LTD. SWORD HOUSE, TOTTERIDGE ROAD, HIGH WYCOMBE, HP13 6DG UK |
| Manufacturer Part Number | 65934US |
| Model | Oil Treatment |
| Product Dimensions | 8 x 9 x 14 cm; 300 g |

## Images

![65934US Diesel Oil Treatment (300 ml) - Image 1](https://m.media-amazon.com/images/I/61uv6fxnzGL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by S***E on 29 February 2016*

STP is really effective products Friends really you trust me is great amazing products. I am using this product in my Xylo E-8 Friends believe me I am 1st time using this product & I just show video's in YouTube so I am oder this product but really after using this product my vehicle voice is totally change & so smoothly running mostly people is thinking after oil change also engine sounds is changing but really if you use STP products so is different results. My vehicle is 5 years old & 18500/Km I am running but after service my XYLO E-8 so really is different to everyone services results. It's totally amazing best product & I really required to everyone if you love you vehicles so you use this STP.

### ⭐⭐⭐⭐ Review
*by A***. on 26 June 2016*

Used in my Ford Figo but didnt see any major improvement in performance. There was bit reduction in noise but not making much of difference. Wont buy next time. Update: seen improvement in car performance after 500 KM of run. Engine is smoother, pickup is good specially at lower speed and higher gear.

### ⭐⭐⭐⭐⭐ Review
*by A***S on 19 February 2017*

Fascinated with working of STP diesel engine oil flush, ordered this product and seemed to working well the product is very thick.. Thought it would be problematic for engine cold start but didn't pose any as such issues.. The good part is the engine is as smooth as it used be when new.. The engine recently developed clatter sound as it is getting old at 50k kms on odo.. Even that clatter gone completely, these products are definitely vfm as they prove very effective when used rightly at right time..

## Frequently Bought Together

- STP 65934US Diesel Oil Treatment (300 ml)
- Liqui Moly (20002) Cera Tec Friction Modifier, 300 Ml
- Stp Engine FlUSh 450Ml

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**Shop now:** [https://www.desertcart.fi/products/261562323-65934us-diesel-oil-treatment-300-ml](https://www.desertcart.fi/products/261562323-65934us-diesel-oil-treatment-300-ml)

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*Product available on Desertcart Finland*
*Store origin: FI*
*Last updated: 2026-02-17*