---
product_id: 16105499
title: "11605 SAE 5W50 Fully Synthetic Motor Oil - 1 Gallon"
brand: "red line"
price: "€ 118.70"
currency: EUR
in_stock: true
reviews_count: 8
category: "Red Line"
url: https://www.desertcart.ie/products/16105499-11605-sae-5w50-fully-synthetic-motor-oil-1-gallon
store_origin: IE
region: Ireland
---

# Extended Drain Intervals High Temp Stability & Oxidation Resistance 5W-50 SAE Viscosity Grade 11605 SAE 5W50 Fully Synthetic Motor Oil - 1 Gallon

**Brand:** red line
**Price:** € 118.70
**Availability:** ✅ In Stock

## Summary

> 🔥 Power your drive with Red Line – where performance meets precision!

## Quick Answers

- **What is this?** 11605 SAE 5W50 Fully Synthetic Motor Oil - 1 Gallon by red line
- **How much does it cost?** € 118.70 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/16105499-11605-sae-5w50-fully-synthetic-motor-oil-1-gallon)

## 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

- • **Endurance Under Fire:** Exceptional thermal stability and oxidation resistance ensure your engine stays lubricated and protected even at extreme temperatures.
- • **Precision Engine Protection:** Ester/PAO full-synthetic formula engineered for peak performance in passenger cars, light trucks, and high-demand vehicles.
- • **Trusted by Performance Icons:** Preferred oil for Shelby GT500, Ford GT, Focus RS, and select Range Rover engines—join the elite drivers who demand the best.
- • **Longer Intervals, Less Hassle:** Push your oil change intervals beyond the norm without compromising engine health—save time and money while driving smarter.
- • **Unmatched Cleanliness & Efficiency:** High detergency keeps your engine spotless, boosting fuel economy and power with superior ring seal technology.

## Overview

Red Line 11605 SAE 5W50 is a fully synthetic motor oil featuring an advanced ester/PAO formula designed for high-performance vehicles and demanding applications. It offers superior high-temperature stability, oxidation resistance, and high detergency for extended drain intervals, improved fuel economy, and enhanced engine cleanliness. Trusted by enthusiasts and OEMs alike, it’s the go-to oil for iconic performance cars such as the Shelby GT500 and Ford GT.

## Description

Buy Red Line 11605 SAE 5W50 Fully Synthetic Motor Oil - 1 Gallon: Motor Oils - desertcart.com ✓ FREE DELIVERY possible on eligible purchases

Review: Great protection - Excellent. Highly recommend
Review: Was a Royal Purple user until I tried Redline - I will admit I was a user of Royal Purple for years until I tried Redline. Redline made my 02 chevy avalanche run smoother and quieter and might have even picked a couple of more miles per gallon since I changed to this oil. It's more expensive but I think it's worth it in the long run. I used to change my oil at every 3-4 k with royal purple. I am going to try every 5k with redline and see how it does. Awesome performance also out of my 5.3 vortec. Loving this oil so far!

## Features

- FULL-SYNTHETIC - ester/PAO formula for passenger cars, light trucks, performance vehicles and marine applications
- HIGH DETERGENCY - allows extended drain intervals and provides increased cleanliness, Improved fuel economy and ring seal for more power
- SUPERIOR - high temperature stability and oxidation resistance improves lubrication of hot metal compared to other synthetics
- POPULAR PERFORMANCE OIL FOR - 5.4L Supercharged Ford applications like Shelby GT 500 and Ford GT, Focus RS (WSS-M2C931-B/-C), recommended for use in 2001-2002 Range Rover engines, for API SN/SM/SL/SJ/SH/SG/CF and ACEA A3/B3/B4
- WHY RED LINE - Established in 1979, Red Line Products perform & protect better than any on the market. No compromises

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B004BORLQM |
| Automotive Fit Type | Vehicle Specific Fit |
| Best Sellers Rank | #778,073 in Automotive ( See Top 100 in Automotive ) #2,026 in Motor Oils |
| Brand | Red Line |
| Customer Reviews | 4.8 4.8 out of 5 stars (66) |
| Date First Available | July 21, 2014 |
| Global Trade Identification Number | 00083522116053 |
| Is Discontinued By Manufacturer | No |
| Item Weight | 6.6 pounds |
| Item model number | 11605 |
| Manufacturer | Red Line |
| Manufacturer Part Number | 11605 |
| Model | 11605 |
| OEM Part Number | 11605 |
| Product Dimensions | 6.75 x 4.5 x 11 inches |
| SAE J300 Viscosity Grade | 5W-50 |
| Size | Gallon |
| UPC | 083522116053 083522116251 |
| Vehicle Service Type | Car, Truck |
| Viscosity | 5W-50 |

## Product Details

- **Brand:** Red Line
- **Liquid Volume:** 1 Gallons
- **Package Information:** Bottle
- **Vehicle Service Type:** Car, Truck
- **Viscosity:** 5W-50

## Images

![11605 SAE 5W50 Fully Synthetic Motor Oil - 1 Gallon - Image 1](https://m.media-amazon.com/images/I/71QrR6qxnDL.jpg)

## Questions & Answers

**Q: Would this be great for a 335i N54 with heavy performance mods?**
A: Absolutely, I run it in my Shelby GT350

**Q: Can i use it on a 2005 bmw 545i?**
A: The 2005 545i uses 5w30 or 0w40 when in temperatures over 50 degrees F.

**Q: Is this good for an old/worn opel zafira b 1.9 cdti, or is it a bit too thick for the system?**
A: I’m sorry I don’t know about your particular car however it went into my 2020 Shelby gt 350 easily, as it is the required viscosity. The oil was not thick like the old 20/50 weight oil it was actually easy to pour. The oil pressure typically runs over 100 lbs in the Shelby if that helps.

**Q: Is this 1 gallon of 11605 the same as the 1 quart of 11604**
A: Yes, it is the same oil.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Great protection
*by M***A on November 3, 2025*

Excellent. Highly recommend

### ⭐⭐⭐⭐⭐ Was a Royal Purple user until I tried Redline
*by S***N on October 16, 2024*

I will admit I was a user of Royal Purple for years until I tried Redline. Redline made my 02 chevy avalanche run smoother and quieter and might have even picked a couple of more miles per gallon since I changed to this oil. It's more expensive but I think it's worth it in the long run. I used to change my oil at every 3-4 k with royal purple. I am going to try every 5k with redline and see how it does. Awesome performance also out of my 5.3 vortec. Loving this oil so far!

### ⭐⭐⭐⭐⭐ E92 M3 runs like butter
*by V***L on July 15, 2024*

Switched from Liqui Moli which was super noisy at startup. No more noise on cold start ups and runs butter smooth. Makes the butt dyno feels good. Overall a solid oil and would highly recommend. E92 M3

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*Product available on Desertcart Ireland*
*Store origin: IE*
*Last updated: 2026-02-14*