---
product_id: 45259210
title: "Summer+ Formula Diesel Fuel Additive: Each Quart Treats up to 640 Gallons of Diesel Fuel (1 Quart (Treats 640 Gallons))"
brand: "opti-lube"
price: "฿4180"
currency: THB
in_stock: true
reviews_count: 8
category: "Opti Lube"
url: https://www.desertcart.co.th/products/45259210-summer-formula-diesel-fuel-additive-each-quart-treats-up-to
store_origin: TH
region: Thailand
---

# Treats 640 gallons per quart Boosts cetane by 5-7 points Prevents rust & corrosion Summer+ Formula Diesel Fuel Additive: Each Quart Treats up to 640 Gallons of Diesel Fuel (1 Quart (Treats 640 Gallons))

**Brand:** opti-lube
**Price:** ฿4180
**Availability:** ✅ In Stock

## Summary

> ⛽🔥 Keep your diesel running cooler, cleaner, and stronger all summer long!

## Quick Answers

- **What is this?** Summer+ Formula Diesel Fuel Additive: Each Quart Treats up to 640 Gallons of Diesel Fuel (1 Quart (Treats 640 Gallons)) by opti-lube
- **How much does it cost?** ฿4180 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.th](https://www.desertcart.co.th/products/45259210-summer-formula-diesel-fuel-additive-each-quart-treats-up-to)

## Best For

- opti-lube enthusiasts

## Why This Product

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

## Key Features

- • **Injector Detox:** Cleans and protects fuel injectors to reduce deposits and emissions, keeping your engine running clean and efficient.
- • **Maximize Every Drop:** One quart treats up to 640 gallons of diesel, stretching your fuel budget further than ever.
- • **Power Up Your Engine:** Boosts cetane by 5-7 points for enhanced fuel economy and smoother, more powerful performance.
- • **Summer-Proof Your Ride:** Formulated to combat thermal degradation and fuel breakdown in hot weather, doubling diesel storage life.
- • **Rust & Corrosion Shield:** Acts as a demulsifier and corrosion inhibitor, safeguarding your engine’s longevity and reliability.

## Overview

Opti-Lube Summer+ Formula is a premium diesel fuel additive designed to treat up to 640 gallons per quart. It enhances fuel economy by boosting cetane levels, cleans and protects injectors, prevents rust and corrosion, and extends fuel storage life—especially optimized for summer conditions. Trusted by professionals to maintain engine performance, reduce noise, and improve reliability.

## Description

Buy Opti-Lube Summer+ Formula Diesel Fuel Additive: Each Quart Treats up to 640 Gallons of Diesel Fuel (1 Quart (Treats 640 Gallons)): Diesel Additives - desertcart.com ✓ FREE DELIVERY possible on eligible purchases

Review: Great Product - great service, great company - I had previously given a 1 star review due solely to shipping concerns. Sean from optilube reached out to me and went above and beyond to alleviate those concerns. This really is a company that cares about the customer. My business makes a negligible impact on optilubes portfolio or bottom line, yet they reached out to me and provided the type of service and customer appreciation you simply do not find with large businesses. As far as the product, its the best on the market. And I have tried them all. I have a 1994.5 powerstroke and both xpd and XL cut the engine noise by almost half. Even my 10 year old daughter said "your pickup isnt as loud as it used to be". I wont buy any other additives but optilube, their product is the real deal, not a snake oil.
Review: Truck starts easyier, idles better. - I'm not sure if the truck makes more power or torque or fuel milage. My truck idles often that is not good for long life. if it idles more smoothly with less noise and starts quicker I believe it's worth using. It has a 475 H.P. 1999 3406e Cat at 575,000 untouched miles. I'm switching to semi synthetic oil, I'm trying to keep it untouched till some time much later.

## Features

- MADE FOR OPTIMAL LUBRICATION: Your truck has been there for you every minute and every mile, which is why it’s important to keep it in pristine condition. At Opti-Lube, our goal is to keep your engine operating at its best. Our fuel additive helps to increase the lubricity properties of ultra-low-sulfur diesel (ULSD) so that you can play more and worry less.
- IMPROVES FUEL ECONOMY: Trucks are known for eating up fuel. Fortunately, there’s a way to fix that with Opti-Lube Summer+ Cetane formula. This diesel fuel additive has been shown to enhance fuel mileage year round, giving you more bang for your buck.
- CLEANS INJECTORS: When your fuel injectors build up with residue, your engine doesn’t run as efficiently. Opti-Lube Summer+ Cetane formula cleans injectors while helping prevent future build-up. This helps to reduce deposits and emissions, making this additive compatible with all vehicle emissions systems. Additionally, it acts as rust and corrosion prevention to keep your vehicle in tip-top shape.
- ENHANCES PERFORMANCE: Whether during rain or shine, Opti-Lube Summer+ Cetane formula delivers. It works to improve the performance of your truck all year round. This treatment also helps separate water from diesel fuel as a demulsifier and increases Cetane by 5 - 7 points which results in enhanced fuel economy and power.
- MADE ESPECIALLY FOR SUMMER: Summertime is hard on your fuel. The higher temperatures can cause faster thermal degradation of the fuel. Fuel prices tend to spike during the summer too, so you’re typically spending more when you’re at the pump. Our Summer+ Cetane is the best diesel fuel additive for warm weather and your wallet. It helps improve fuel mileage and helps prevent fuel breakdown, more than doubling the storage life of standard diesel fuel.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00G6RE90I |
| Best Sellers Rank | #128,160 in Automotive ( See Top 100 in Automotive ) #136 in Diesel Additives |
| Brand | Opti-Lube |
| Brand Name | Opti-Lube |
| Container Type | Bottle |
| Customer Reviews | 4.6 out of 5 stars 125 Reviews |
| Flash Point | 65 Degrees Celsius |
| Item Form | Liquid |
| Liquid Volume | 1 Quarts |
| Manufacturer | Opti-Lube |
| Package Information | Bottle |
| UPC | 853001004221 |
| Unit Count | 32.0 Fluid Ounces |

## Product Details

- **Brand:** Opti-Lube
- **Flash Point:** 65 Degrees Celsius
- **Item Form:** Liquid
- **Liquid Volume:** 1 Quarts
- **Package Information:** Bottle

## Images

![Summer+ Formula Diesel Fuel Additive: Each Quart Treats up to 640 Gallons of Diesel Fuel (1 Quart (Treats 640 Gallons)) - Image 1](https://m.media-amazon.com/images/I/61Mda1gYFpL.jpg)

## Available Options

This product comes in different **Size** options.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Great Product - great service, great company
*by N***. on June 1, 2019*

I had previously given a 1 star review due solely to shipping concerns. Sean from optilube reached out to me and went above and beyond to alleviate those concerns. This really is a company that cares about the customer. My business makes a negligible impact on optilubes portfolio or bottom line, yet they reached out to me and provided the type of service and customer appreciation you simply do not find with large businesses. As far as the product, its the best on the market. And I have tried them all. I have a 1994.5 powerstroke and both xpd and XL cut the engine noise by almost half. Even my 10 year old daughter said "your pickup isnt as loud as it used to be". I wont buy any other additives but optilube, their product is the real deal, not a snake oil.

### ⭐⭐⭐⭐⭐ Truck starts easyier, idles better.
*by T***. on December 9, 2018*

I'm not sure if the truck makes more power or torque or fuel milage. My truck idles often that is not good for long life. if it idles more smoothly with less noise and starts quicker I believe it's worth using. It has a 475 H.P. 1999 3406e Cat at 575,000 untouched miles. I'm switching to semi synthetic oil, I'm trying to keep it untouched till some time much later.

### ⭐⭐⭐⭐⭐ great additive
*by J***X on June 4, 2014*

.this stuff really works and I get about 51mpg hwy using opti lube on my 2010 vw golf tdi I drove from Sc to Nj all highway miles I got 602 miles before I seen the fuel light gauge then drove back from Nj to Sc with out using opti lube I got 523 miles before I seen the fuel light all highway miles driving 70 mph on Air conditioner on 3.city driving I get 35mpg combined 40mpg I hope this help anyone looking to buy a diesel additive for they truck or car

## Frequently Bought Together

- Opti-Lube Summer+ Formula Diesel Fuel Additive: Each Quart Treats up to 640 Gallons of Diesel Fuel (1 Quart (Treats 640 Gallons))
- Opti-Lube XPD Formula Diesel Fuel Additive: Quarts (1 Quart (Treats 128 Gallons))
- Opti-Lube XL Xtreme Lubricant Diesel Fuel Additive: Each Quart Treats up to 320 Gallons (1 Quart (Treats 320 Gallons))

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*Product available on Desertcart Thailand*
*Store origin: TH*
*Last updated: 2026-02-17*