---
product_id: 321925241
title: "Castrol TranSynd 668 Synthetic Automatic Transmission Fluid, 1 gal"
brand: "castrol"
price: "S$159"
currency: SGD
in_stock: true
category: "Castrol"
url: https://www.desertcart.sg/products/321925241-castrol-transynd-668-synthetic-automatic-transmission-fluid-1-gal
store_origin: SG
region: Singapore
---

# Superior thermal stability Advanced gear protection Extended anti-shudder durability Castrol TranSynd 668 Synthetic Automatic Transmission Fluid, 1 gal

**Brand:** castrol
**Price:** S$159
**Availability:** ✅ In Stock

## Summary

> ⚡ Drive smarter, shift smoother, last longer.

## Quick Answers

- **What is this?** Castrol TranSynd 668 Synthetic Automatic Transmission Fluid, 1 gal by castrol
- **How much does it cost?** S$159 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sg](https://www.desertcart.sg/products/321925241-castrol-transynd-668-synthetic-automatic-transmission-fluid-1-gal)

## Best For

- castrol enthusiasts

## Why This Product

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

## Key Features

- • **Clutch Longevity Boost:** Enhanced clutch-friction durability means fewer replacements and more time on the road.
- • **Unrivaled Gear Defense:** Protect your transmission with cutting-edge synthetic formula designed for peak performance.
- • **Corrosion & Foam Fighter:** Engineered to resist corrosion and foaming, ensuring consistent fluid performance under pressure.
- • **Smooth Shifts, Zero Shudder:** Experience extended anti-shudder durability that keeps your drive silky smooth mile after mile.
- • **Universal Fit, Professional Grade:** One synthetic fluid to rule them all—compatible with a wide range of automatic transmissions.

## Overview

Castrol TranSynd 668 is a premium synthetic automatic transmission fluid delivering superior gear protection, extended anti-shudder and clutch-friction durability, plus excellent resistance to corrosion, foaming, and thermal breakdown—making it the go-to choice for professionals seeking reliable, long-lasting transmission performance.

## Description

Buy Castrol TranSynd 668 Synthetic Automatic Transmission Fluid, 1 gal: Fuel Additives - desertcart.com ✓ FREE DELIVERY possible on eligible purchases

## Features

- Delivers improved gear protection.
- Delivers extended anti-shudder durability.
- Delivers extended clutch-friction durability.
- Excellent corrosion and foaming resistance.
- Excellent thermal and oxidative stability that helps to prevent deposits and oil thickening.
- Fit type: Universal

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B095SZB2DK |
| Best Sellers Rank | #5,448 in Automotive ( See Top 100 in Automotive ) #20 in Transmission Fluids |
| Brand Name | Castrol |
| Container Type | Bottle |
| Customer Reviews | 4.8 4.8 out of 5 stars (1,039) |
| Item Form | Liquid |
| Liquid Volume | 1 gallons |
| Material | Synthetic |
| Number of Items | 1 |
| Part Number | TES 668 |
| Recommended Uses For Product | Automotive |
| UPC | 079191219164 |
| Unit Count | 128 Fluid Ounces |

## Product Details

- **Brand:** Castrol
- **Liquid Volume:** 1 gallons
- **Material:** Synthetic
- **Package Information:** Bottle
- **Recommended Uses For Product:** Automotive

## Images

![Castrol TranSynd 668 Synthetic Automatic Transmission Fluid, 1 gal - Image 1](https://m.media-amazon.com/images/I/71RP2LrvVRL.jpg)
![Castrol TranSynd 668 Synthetic Automatic Transmission Fluid, 1 gal - Image 2](https://m.media-amazon.com/images/I/510jQvr1cIS.jpg)
![Castrol TranSynd 668 Synthetic Automatic Transmission Fluid, 1 gal - Image 3](https://m.media-amazon.com/images/I/51fS+M5Xa4S.jpg)
![Castrol TranSynd 668 Synthetic Automatic Transmission Fluid, 1 gal - Image 4](https://m.media-amazon.com/images/I/51ZQ2Q2uaES.jpg)

## Available Options

This product comes in different **Number Of Items** options.

## Questions & Answers

**Q: Can I use this in my 2001 silverado 2500hd with an allison transmission?**
A: Yes, I recommend flushing and filter (Both) try to remove as much of the Dino oil as possible.
Transcend works wonderfully in my '01 and '05 Chev Allisons

**Q: Can this be use with nissan rogue 2017?**
A: no

**Q: Ok for Genesis 80 2017**
A: no

**Q: I am trying to find the color of the fluid. Not able to find it on the product description. Any comments?**
A: It's red. Just like the older version.

## Frequently Bought Together

- Stone River Products Castrol TranSynd 668 Allison 2021 Updated SPEC 1 GALLON ONLY BY DOXA WORLDWIDE
- Allison 29539579 Screw-on Filter with Magnet Filter Kit replacing filter for Allison transmission per OEM Specs, For utility terrain vehicles
- ACDelco GM Original Equipment PF2232 Engine Oil Filter

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**Shop now:** [https://www.desertcart.sg/products/321925241-castrol-transynd-668-synthetic-automatic-transmission-fluid-1-gal](https://www.desertcart.sg/products/321925241-castrol-transynd-668-synthetic-automatic-transmission-fluid-1-gal)

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*Product available on Desertcart Singapore*
*Store origin: SG*
*Last updated: 2026-07-29*