---
product_id: 327474000
title: "01512 Synchromax Manual Transmission Fluid Pack of 6 Quarts"
brand: "royal purple"
price: "€ 543.54"
currency: EUR
in_stock: true
reviews_count: 5
category: "Royal Purple"
url: https://www.desertcart.hr/products/327474000-01512-synchromax-manual-transmission-fluid-pack-of-6-quarts
store_origin: HR
region: Croatia
---

# Reduces operating temps by up to 20% Smooth, precise shifting performance Outstanding wear & corrosion protection 01512 Synchromax Manual Transmission Fluid Pack of 6 Quarts

**Brand:** royal purple
**Price:** € 543.54
**Availability:** ✅ In Stock

## Summary

> ⚙️ Shift into the future with Royal Purple Synchromax – where power meets precision!

## Quick Answers

- **What is this?** 01512 Synchromax Manual Transmission Fluid Pack of 6 Quarts by royal purple
- **How much does it cost?** € 543.54 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/327474000-01512-synchromax-manual-transmission-fluid-pack-of-6-quarts)

## Best For

- royal purple enthusiasts

## Why This Product

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

## Key Features

- • **Silky Smooth Shifts:** Enhances gear engagement and reduces noise
- • **Metal-Friendly Formula:** Protects delicate synchronizer metals like brass and copper
- • **Universal Compatibility:** Works seamlessly with manual, 4x4, and motorcycle gearboxes
- • **Cooler Runs, Longer Life:** Lowers transmission heat for extended durability
- • **Trusted High Performance:** Synthetic blend with 4.8-star rating from 200+ users

## Overview

Royal Purple Synchromax Manual Transmission Fluid is a premium synthetic fluid designed to improve shifting smoothness, reduce gear noise, and lower operating temperatures. Compatible with manual transmissions, 4x4 transfer cases, and motorcycle gearboxes, it offers superior wear and corrosion protection without harming sensitive synchronizer metals. Trusted by professionals and enthusiasts alike, this 6-quart pack ensures your transmission performs like new mile after mile.

## Description

Royal Purple #01512 Transmission Fluid, Synchromax, Manual, Synthetic, 1 Quart, Pack of 6. Synchromax is a manual transmission fluid that increases performance and the life of your equipment. It improves shifting, reduces gear noise and increases power transfer to the wheels. It also lowers operating temperatures and provides outstanding wear protection for longer transmission life. Synchromax is recommended for manual transmissions that specify an automatic transmission fluid. It's also ideal for 4×4 transfer cases and motorcycle gear boxes. Synchromax is fully compatible with all types of friction materials. It provides excellent corrosion and oxidation protection without affecting the soft metals commonly found in manual transmission synchronizers.Features:* Synchromax by Royal Purple is a high performance manual transmission fluid* Significantly reduces heat for longer transmission life* Improves shifting and reduces gear noise* Delivers outstanding wear protection* Can also be used in 4x4s and motorcycles* Will not affect the softer metals in synchronizers* Compatible with other type of transmission fluids

Review: Best in my opinion - What’s there to review, excellent stuff.
Review: Great for 1988 F250 ZF5 transmission - I have a 88 F250 with the ZF5 (5 speed) transmission and a 460 (7.5l) V8. This stuff is awesome, I've always liked Royal Purple oil, and have used several other products with good result. I decided to change out my gear box oil/ATF and wanted something that offered a little bit better protection for a manual gearbox, namely better protection for the "yellow metals" (like brass and Copper) that are used in manual transmissions. I was looking just to replace my existing fluid with something a little better, what I was NOT expecting was a significant change in performance... my gearbox now shifts MUCH more smoothly than before, it used to be a little hard to get into 2nd (you normally start in 2nd on a ZF5 when not rowing), especially if the gearbox was really cold. This thing is now as easy to shift as I imagine it was when it was BRAND NEW! It took about 50-100 miles for it to have this effect, but let me tell, it's awesome (and was entirely unexpected)! If you have a Ford with a ZF5 or ZF6, this is the right choice for your gearbox (oh, and transfer case too!) and although it's a little pricey, it's worth every penny! The 6 quart pack was enough to do both my transmission and transfer case with about a third of a bottle (12oz) left.

## Features

- ROYAL PURPLE
- 01512K6
- Transmission Fluid

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B007SPM0RG |
| Brand | Royal Purple |
| Brand Name | Royal Purple |
| Container Type | Bottle |
| Customer Reviews | 4.8 out of 5 stars 207 Reviews |
| Item Form | Liquid |
| Item Weight | 12 Pounds |
| Item weight | 12 Pounds |
| Liquid Volume | 6 Quarts |
| Liquid volume | 6 Quarts |
| Manufacturer | Royal Purple |
| Material | Synthetic |
| Model Number | 06512/01512 |
| Package information | Bottle |
| Part Number | ROYA01512-6PK |
| Recommended Uses For Product | Transmission Fluid |
| Recommended uses for product | Transmission Fluid |
| Specific Uses For Product | Manual Transmissions, 4x4 Transfer Cases, Motorcycle Gear Boxes |
| UPC | 641330065125 |
| Unit Count | 192 Milliliters |

## Product Details

- **Brand:** Royal Purple
- **Item weight:** 5.44 kg
- **Liquid volume:** 6 Quarts
- **Material:** Synthetic
- **Package information:** Bottle

## Images

![01512 Synchromax Manual Transmission Fluid Pack of 6 Quarts - Image 1](https://m.media-amazon.com/images/I/61UfgWHSAgL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Best in my opinion
*by M***A on 7 February 2026*

What’s there to review, excellent stuff.

### ⭐⭐⭐⭐⭐ Great for 1988 F250 ZF5 transmission
*by D***. on 17 May 2019*

I have a 88 F250 with the ZF5 (5 speed) transmission and a 460 (7.5l) V8. This stuff is awesome, I've always liked Royal Purple oil, and have used several other products with good result. I decided to change out my gear box oil/ATF and wanted something that offered a little bit better protection for a manual gearbox, namely better protection for the "yellow metals" (like brass and Copper) that are used in manual transmissions. I was looking just to replace my existing fluid with something a little better, what I was NOT expecting was a significant change in performance... my gearbox now shifts MUCH more smoothly than before, it used to be a little hard to get into 2nd (you normally start in 2nd on a ZF5 when not rowing), especially if the gearbox was really cold. This thing is now as easy to shift as I imagine it was when it was BRAND NEW! It took about 50-100 miles for it to have this effect, but let me tell, it's awesome (and was entirely unexpected)! If you have a Ford with a ZF5 or ZF6, this is the right choice for your gearbox (oh, and transfer case too!) and although it's a little pricey, it's worth every penny! The 6 quart pack was enough to do both my transmission and transfer case with about a third of a bottle (12oz) left.

### ⭐⭐⭐⭐⭐ Smooth performance
*by M***H on 16 June 2024*

Use this in my Hummers transfer case (use their gear oil 75-90 in differentials). Increased gas mileage from first use and smoothed out the drive train. FYI - use full synthetic oil and transmission fluid as well. All synthetics increased gas mileage by almost 3mpg. Almost pays for itself….

## Frequently Bought Together

- Royal Purple 01512 Synchromax Manual Transmission Fluid - 1 Quart (Pack of 6)
- Slippery Pete - Fluid Pump for Standard Quart Bottles - 8cc per Pump Stroke and 3rd Hand Adapter, Transfer Gear Oil, Transmission and Differential Fluid (28mm)
- Royal Purple 01300 Set of 3 Max Gear 75W-90 Oil 1-Quart Bottles

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.hr/products/327474000-01512-synchromax-manual-transmission-fluid-pack-of-6-quarts](https://www.desertcart.hr/products/327474000-01512-synchromax-manual-transmission-fluid-pack-of-6-quarts)

---

*Product available on Desertcart Croatia*
*Store origin: HR*
*Last updated: 2026-08-19*