---
product_id: 614949695
title: "Mobil 1-123840 Extended Performance High Mileage 5W-20, Gray; 5QT (Pack of 2)"
brand: "mobil"
price: "₨7447"
currency: SCR
in_stock: true
reviews_count: 13
category: "Mobil"
url: https://www.desertcart.sc/products/614949695-mobil-1-123840-extended-performance-high-mileage-5w-20-gray
store_origin: SC
region: Seychelles
---

# Up to 20,000 miles oil change interval Heat protection up to 500°F Cold start protection to -40°F Mobil 1-123840 Extended Performance High Mileage 5W-20, Gray; 5QT (Pack of 2)

**Brand:** mobil
**Price:** ₨7447
**Availability:** ✅ In Stock

## Summary

> 🚗 Keep your high-mileage engine running like new—longer, cleaner, stronger!

## Quick Answers

- **What is this?** Mobil 1-123840 Extended Performance High Mileage 5W-20, Gray; 5QT (Pack of 2) by mobil
- **How much does it cost?** ₨7447 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sc](https://www.desertcart.sc/products/614949695-mobil-1-123840-extended-performance-high-mileage-5w-20-gray)

## Best For

- mobil enthusiasts

## Why This Product

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

## Key Features

- • **Fuel Economy Booster:** Meets ILSAC GF-6 standards to reduce friction and improve your MPG.
- • **Triple Action+ Formula:** Maximize engine performance, protection, and cleanliness in one advanced blend.
- • **Long-Lasting Engine Care:** Go up to 20,000 miles between oil changes with confidence.
- • **High Mileage Engine Savior:** Specifically engineered for engines over 75,000 miles to extend life and prevent sludge.
- • **Extreme Temperature Defense:** Protects your engine from scorching heat and freezing cold starts.

## Overview

Mobil 1 Extended Performance High Mileage 5W-20 is a full-synthetic motor oil designed for vehicles with over 75,000 miles. It offers up to 20,000 miles between oil changes, superior heat protection up to 500°F, and cold start protection down to -40°F. Featuring Mobil 1’s Triple Action+ Formula, it enhances engine performance, prevents sludge buildup, and meets ILSAC GF-6 standards to protect against low-speed pre-ignition and timing chain wear, while improving fuel economy.

## Description

You trust your car to keep you going—even after 75,000 miles. Mobil 1 Extended Performance High Mileage full-synthetic motor oil 5W-20 gives engines with over 75,000 miles the extra care they need to go the distance. Formulated to help prevent leaks, it helps to protect critical engine parts for up to 20,000 miles between oil changes—guaranteed.* Mobil 1 Extended Performance utilizes Mobil 1’s Triple Action+ Formula to combine outstanding engine performance, protection, and cleanliness with the added benefit of maximized engine power. Specialty components in synthetic oil reduce friction, helping to prevent and remove sludge buildup in just one oil change. This technologically advanced formulation provides 20X better** internal engine heat protection than industry standards (up to 500 degrees Fahrenheit) as well as excellent low-temperature protection (to -40 degrees Fahrenheit)—bringing quick cold-weather starting and ultra-fast protection to your engine. Mobil 1 Extended Performance meets ILSAC GF-6 standards to help provide low-speed pre-ignition (LSPI) and timing chain wear protection while keeping your engine clean and helping to improve your fuel economy. Mobil 1 Extended Performance full-synthetic motor oil 5W-20 also helps control oxidation to prevent oil breakdown. This cutting-edge formula is recommended by ExxonMobil for all types of modern vehicles, including high-performance, turbo-charged, and supercharged gasoline and diesel multi-valve fuel-injected engines found in passenger cars, SUVs, light vans, and light trucks. Mobil 1 is America’s #1 synthetic motor oil brand at retail,*** trusted and recommended by car builders and experienced mechanics, and is the Official Motor Oil of NASCAR®. (*Protects for up to 20,000 miles or 1 year, whichever comes first. To learn more about the Mobil 1 Limited Warranty, visit Mobil.US. **Based on Seq IIIH vs industry limits. ***Source: The NPD Group/ Retail Tracking Service/ Dollar Sales/ PCMO full-synthetic/ 52 weeks ending September 30, 2023)

Review: Reliable Protection for High Mileage Engines - I’ve been using Mobil 1 Extended Performance High Mileage 5W-20 for my vehicle, and I’m very satisfied with the results. It runs smoothly and feels noticeably more refined after the oil change. I appreciate that it’s designed specifically for higher mileage engines—it helps reduce engine wear and keeps things running efficiently. I’ve also noticed less engine noise and a smoother startup, especially on colder mornings. The 5-quart container is convenient and makes oil changes easy without needing multiple bottles. Overall, this is a trusted, high-quality oil that gives me confidence in my engine’s long-term health. Definitely worth it for anyone wanting reliable protection and performance!
Review: Great Oil for High-Mileage Engines - I’ve been very happy with this Mobil 1 Extended Performance High Mileage 5W-20 oil. It provides smooth engine performance and gives me confidence that my high-mileage vehicle is getting the protection it needs. The 5-quart size is convenient for an oil change, and the 20,000-mile protection rating is a great bonus. Overall, this is a quality full synthetic oil and a product I would definitely buy again. Highly recommended!

## Features

- The information below is per-pack only
- Mobil 1 Extended Performance High Mileage full-synthetic motor oil 5W-20 is designed for engines with over 75,000 miles to go up to 20,000 miles between oil changes.*
- Utilizes Mobil 1’s Triple Action+ Formula to combine outstanding engine performance, protection, and cleanliness with the added benefit of power
- Meets ILSAC GF-6 standards to help provide low-speed pre-ignition (LSPI) and timing chain wear protection while keeping your engine clean and helping to improve your fuel economy
- Provides excellent internal engine heat protection (up to 500 degrees F) and low temperature protection (to -40 degrees F)
- Helps extend engine life by working to prevent damaging deposits and sludge buildup

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0CXPZR5ST |
| Automotive Fit Type | Universal Fit |
| Best Sellers Rank | #2 in Automotive ( See Top 100 in Automotive ) #1 in Motor Oils |
| Brand | Mobil |
| Brand Name | Mobil |
| Compatible with Vehicle Type | Car |
| Container Type | Bottle |
| Customer Reviews | 4.8 out of 5 stars 1,714 Reviews |
| Item Type Name | Full Synthetic Motor Oil |
| Item Weight | 10.1 pounds |
| Liquid Volume | 5 quarts |
| Manufacturer | Mobil 1 |
| Manufacturer Part Number | 123840 |
| Manufacturer Warranty Description | Limited Warranty - Please contact manufacturer for full details |
| Model Number | Extended Performance High Mileage |
| Package Information | Bottle |
| SAE J300 Viscosity Grade | 5W-20 |
| Size | 5 Quart (Pack of 2) |
| Unit Count | 320 Fluid Ounces |
| Vehicle Service Type | Car |
| Viscosity Level | Low to Medium |

## Product Details

- **Brand:** Mobil
- **Liquid Volume:** 5 quarts
- **Package Information:** Bottle
- **SAE J300 Viscosity Grade:** 5W-20
- **Vehicle Service Type:** Car

## Images

![Mobil 1-123840 Extended Performance High Mileage 5W-20, Gray; 5QT (Pack of 2) - Image 1](https://m.media-amazon.com/images/I/71nwFqq8BYL.jpg)
![Mobil 1-123840 Extended Performance High Mileage 5W-20, Gray; 5QT (Pack of 2) - Image 2](https://m.media-amazon.com/images/I/61NA97AEBfL.jpg)
![Mobil 1-123840 Extended Performance High Mileage 5W-20, Gray; 5QT (Pack of 2) - Image 3](https://m.media-amazon.com/images/I/71go+FxDGfL.jpg)
![Mobil 1-123840 Extended Performance High Mileage 5W-20, Gray; 5QT (Pack of 2) - Image 4](https://m.media-amazon.com/images/I/81Q+XsFCAPL.jpg)
![Mobil 1-123840 Extended Performance High Mileage 5W-20, Gray; 5QT (Pack of 2) - Image 5](https://m.media-amazon.com/images/I/61aLeFsl7rL.jpg)

## Available Options

This product comes in different **Configuration, Size, Style** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Reliable Protection for High Mileage Engines
*by T***D on April 29, 2026*

I’ve been using Mobil 1 Extended Performance High Mileage 5W-20 for my vehicle, and I’m very satisfied with the results. It runs smoothly and feels noticeably more refined after the oil change. I appreciate that it’s designed specifically for higher mileage engines—it helps reduce engine wear and keeps things running efficiently. I’ve also noticed less engine noise and a smoother startup, especially on colder mornings. The 5-quart container is convenient and makes oil changes easy without needing multiple bottles. Overall, this is a trusted, high-quality oil that gives me confidence in my engine’s long-term health. Definitely worth it for anyone wanting reliable protection and performance!

### ⭐⭐⭐⭐⭐ Great Oil for High-Mileage Engines
*by D***N on September 6, 2026*

I’ve been very happy with this Mobil 1 Extended Performance High Mileage 5W-20 oil. It provides smooth engine performance and gives me confidence that my high-mileage vehicle is getting the protection it needs. The 5-quart size is convenient for an oil change, and the 20,000-mile protection rating is a great bonus. Overall, this is a quality full synthetic oil and a product I would definitely buy again. Highly recommended!

### ⭐⭐⭐⭐⭐ Amazing oil
*by G***Y on May 13, 2026*

I have a '17 KIA with 2.0L Turbo. I switched to a major brand synthetic oil after about 10,000 miles. About 7 years later at 55,000, I started seeing oil consumption. I had been using Mobil1 0W-20 Hi-Mileage/Ext. Performance in our Honda van for years and we had zero problems with it - that engine is known to have oil fouling issues resulting in overhaul or new engine. So, I decided to use it (5W-30) in the KIA. It took two yearly changes to stop the oil use. I just checked it today, 4000 miles since the last oil change and NO OIL USAGE! I think this oil is mandatory for any vehicle over 50,000 miles - at least it is in my driveway. You might wonder how it 'cured' that engine - dissolving hard carbon is what it does. Once the piston rings are freed to expand, they seal the cylinder like they're designed to do and oil consumption stops. Engines that have broken rings or scored cylinders from the carbon build-up may not have the best results, but it sure doesn't hurt to try. You do have to give it time to work. The best thing is to start using it before the trouble starts.

## Frequently Bought Together

- Mobil 1-123840 Extended Performance High Mileage 5W-20; 5QT, Gray (Pack of 2)
- ACDelco GM Original Equipment PF2232 Engine Oil Filter
- Mobil 1 122260 5W-40 Turbo Diesel Synthetic Motor Oil - 1 Gallon (Pack of 3)

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*Product available on Desertcart Seychelles*
*Store origin: SC*
*Last updated: 2026-10-14*