---
product_id: 49209910
title: "Classic Castrol 1840B EP90 Gear Oil, 1 Liter"
brand: "castrol"
price: "$71.27"
currency: USD
in_stock: true
reviews_count: 10
category: "Castrol"
url: https://www.desertcart.us/products/49209910-classic-castrol-1840b-ep90-gear-oil-1-liter
store_origin: US
region: United States of America
---

# Castrol Brand - trusted premium quality SAE 90 Viscosity - optimal gear protection 1 Liter Capacity - perfect for precise maintenance Classic Castrol 1840B EP90 Gear Oil, 1 Liter

**Brand:** castrol
**Price:** $71.27
**Availability:** ✅ In Stock

## Summary

> ⚙️ Gear up with Castrol: Classic quality that never goes out of style!

## Quick Answers

- **What is this?** Classic Castrol 1840B EP90 Gear Oil, 1 Liter by castrol
- **How much does it cost?** $71.27 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/49209910-classic-castrol-1840b-ep90-gear-oil-1-liter)

## 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

- • **Trusted Heritage:** Castrol’s legacy means you’re using a product favored by automotive pros worldwide.
- • **Allergy Awareness:** Contains sensitizing substances—know your oil, stay safe.
- • **Retro-Inspired Packaging:** Classic can design that stands out on your shelf and sparks conversation.
- • **Precision Viscosity Control:** SAE 90 grade ensures smooth, reliable gear performance under pressure.
- • **Perfect Fit for Vintage & Modern:** Ideal for classic cars like the Morris Minor and contemporary vehicles alike.

## Overview

Castrol 1840B EP90 Gear Oil is a premium 1-liter lubricant designed for optimal gear protection with SAE 90 viscosity. Trusted by automotive enthusiasts and professionals, it’s perfect for both vintage and modern vehicles, packaged in a distinctive retro can that adds style to your maintenance routine.

## Description

Castrol motor oil brand with a capacity of 1 litre. High quality product.

Review: Great product, love the retro can - Great product, love the retro can
Review: EP90 gear oil - Could not get EP90 gear oil locally for my Morris Minor axle. So purchased this. Did the job just fine

## Features

- Contains sensitizing substances. May produce an allergic reaction.
- Premium Product

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00OIPYLQW |
| Best Sellers Rank | 27,797 in Automotive ( See Top 100 in Automotive ) 310 in Car Engine Oils |
| Brand | Castrol |
| Customer Reviews | 4.7 4.7 out of 5 stars (193) |
| Date First Available | 15 Oct. 2014 |
| Item Weight | 980 g |
| Item model number | 1840B |
| Manufacturer | Castrol |
| Manufacturer part number | 1840B |
| Model | 1840B |
| Package Dimensions | 19 x 11.6 x 6 cm; 979.99 g |
| Viscosity | 90 sae_grade |

## Product Details

- **Brand:** Castrol
- **Liquid volume:** 1000 Millilitres
- **Package information:** Tin
- **Vehicle service type:** Car, Truck
- **Viscosity:** 90 sae_grade

## Images

![Classic Castrol 1840B EP90 Gear Oil, 1 Liter - Image 1](https://m.media-amazon.com/images/I/81724fI4RiL.jpg)

## Available Options

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

## Questions & Answers

**Q: Is it gear box oil**
A: I used it in the Differential on my classic car (Austin Healey Sprite). The gearbox on my car used 20 50 oil. Suggest you check online to see what your gearbox needs.

**Q: Hi which oil is most like castrol d40?**
A: Hi, do you mean D140? This is a bit thinner than that.

**Q: The objective i am seeking  is to keep my blade lubricated  on a Khukuri so no air or moist can come in direct contact of the blade**
A: Hi, probably better off with a product like the ACF 50 or Bilt Hamber Dynax UC.

**Q: Can you use this in the differential?**
A: Castrol EP90 is a high pressure oil rated to GL-4 standard making it suitable for use in standard/low power axles and differentials. However, high performance and limited slip differentials require a GL-5 rated oil. For axles the GL and the viscosity ratings are important, I would check what is recommended for your diff.
Hope this helps

## Customer Reviews

### ⭐⭐⭐⭐⭐ Great product, love the retro can
*by M***E on 23 April 2025*

Great product, love the retro can

### ⭐⭐⭐⭐⭐ EP90 gear oil
*by J***N on 6 April 2024*

Could not get EP90 gear oil locally for my Morris Minor axle. So purchased this. Did the job just fine

### ⭐⭐⭐⭐⭐ Love the Classic tin, and love the product 🙂
*by P***L on 14 November 2023*

Used in the gearbox of a Triumph trident T160

## Frequently Bought Together

- Classic Castrol 1840B EP90 Gear Oil, 1 Liter
- Classic Castrol 1925A 20W50 Engine Oil, 4.54 Liter, XL
- Classic Castrol 1925/7176 XL 20W50 Engine Oil, 1 Liter

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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-03-01*