---
product_id: 261562323
title: "65934US Diesel Oil Treatment (300 ml)"
brand: "stp"
price: "€ 14.54"
currency: EUR
in_stock: true
category: "Stp"
url: https://www.desertcart.hr/products/261562323-65934us-diesel-oil-treatment-300-ml
store_origin: HR
region: Croatia
---

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

**Brand:** stp
**Price:** € 14.54
**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?** € 14.54 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/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.

## Features

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

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00NW6VUIU |
| Best Sellers Rank | #68,985 in Automotive ( See Top 100 in Automotive ) #296 in Oil & Fluid Additives |
| Brand | STP |
| Customer Reviews | 4.1 4.1 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)

## 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.hr/products/261562323-65934us-diesel-oil-treatment-300-ml](https://www.desertcart.hr/products/261562323-65934us-diesel-oil-treatment-300-ml)

---

*Product available on Desertcart Croatia*
*Store origin: HR*
*Last updated: 2026-05-25*