---
product_id: 22885299
title: "Lucas Oil 10635 20W-50 Petroleum Break-In Oil, 1 quart (32 ounces)"
brand: "lucas oil"
price: "€ 74.19"
currency: EUR
in_stock: true
reviews_count: 8
url: https://www.desertcart.hr/products/22885299-lucas-oil-10635-20w-50-petroleum-break-in-oil-1
store_origin: HR
region: Croatia
---

# Ideal for break-in of flat tappet & roller cams Optimized for high octane & methanol fuels 20W-50 Viscosity for robust engine protection Lucas Oil 10635 20W-50 Petroleum Break-In Oil, 1 quart (32 ounces)

**Brand:** lucas oil
**Price:** € 74.19
**Availability:** ✅ In Stock

## Summary

> 🏎️ Break in like a pro, race like a champion!

## Quick Answers

- **What is this?** Lucas Oil 10635 20W-50 Petroleum Break-In Oil, 1 quart (32 ounces) by lucas oil
- **How much does it cost?** € 74.19 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/22885299-lucas-oil-10635-20w-50-petroleum-break-in-oil-1)

## Best For

- lucas oil enthusiasts

## Why This Product

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

## Key Features

- • **Plug & Play Protection:** No moly supplements or extra additives required—pure, straightforward engine care.
- • **Race-Ready Compatibility:** Seamlessly works with methanol, ethanol, and high octane race fuels—no additives needed.
- • **Track-Tested Performance:** Trusted on the track before switching to racing-only oils—because every second counts.
- • **Power Up Your Engine Start:** Less blow-by means stronger ring seal and more horsepower from the get-go.
- • **Camshaft Break-In Specialist:** Engineered for initial break-in of flat tappet and roller camshafts to maximize longevity and performance.

## Overview

Lucas Oil 10635 20W-50 Petroleum Break-In Oil is a premium quart-sized formula designed to optimize the critical initial break-in phase of new engines. Compatible with methanol, ethanol, and high octane race fuels, it ensures superior ring sealing and reduced blow-by without the need for moly supplements or additives. Perfect for flat tappet and roller camshaft applications, this oil delivers proven track performance and reliable protection to extend engine life and maximize power.

## Description

The initial start up of a new engine is critical to its performance and life expectancy. How well and how fast the rings will seal could make the difference between winning and losing. Compatible with Ethanol, Methanol and high octane race gas.

## Features

- Less blow-by equates more power and better ring seal
- Requires no moly supplement and no additional additives
- Compatible with methanol and high octane race fuel
- Recommend use on initial break-in of both flat tappet and roller camshaft applications for maximum protection and performance
- Excellent on track performance prior to switching engine over to the racing only line conventional or synthetic

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Viscosity | 20W-50 |
| Brand | Lucas Oil |
| Vehicle Service Type | Car |
| UPC | 049807106355 |
| Automotive Fit Type | Vehicle Specific Fit |
| Global Trade Identification Number | 00049807106355 |
| Manufacturer | LUCAS OIL |
| Size | Quart |
| SAE J300 Viscosity Grade | 20W-50 |
| Model | 10635 |
| Item Weight | 0.01 ounces |
| Product Dimensions | 4.02 x 1.91 x 0.67 inches |
| Item model number | LUC10635 |
| Exterior | Painted |
| Manufacturer Part Number | 10635 |
| OEM Part Number | 10635 |

## Product Details

- **Viscosity:** 20W-50
- **Brand:** Lucas Oil
- **Vehicle Service Type:** Car
- **UPC:** 049807106355
- **Automotive Fit Type:** Vehicle Specific Fit

## Images

![Lucas Oil 10635 20W-50 Petroleum Break-In Oil, 1 quart (32 ounces) - Image 1](https://m.media-amazon.com/images/I/71iW9VqTtxL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Great Break-in oil
*by J***N on January 1, 2025*

Broken in two engines with this stuff. Works fantastic!First engine was a 350 SBC.Current engine is a 4.6L Ford 3-valve V8.

### ⭐⭐⭐⭐⭐ Rebuilt MGB
*by E***D on July 1, 2024*

I have used this break in oil on several MGB rebuilds. The machine shop I used also uses this break in oil.Works well.

### ⭐⭐⭐⭐⭐ Good
*by A***H on July 16, 2023*

It's a quarter motor oil it was what it was supposed to be

## Frequently Bought Together

- Lucas Oil 10635 20W-50 Petroleum Break-In Oil , 1 quart (32 ounces)
- Lucas Oil SAE 20W-50 Break-in Oil/3x1/5 Quart
- Lucas Oil 10063 Engine Break In Oil Additive w/ TB Zinc Plus - 16 Ounce

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**Shop now:** [https://www.desertcart.hr/products/22885299-lucas-oil-10635-20w-50-petroleum-break-in-oil-1](https://www.desertcart.hr/products/22885299-lucas-oil-10635-20w-50-petroleum-break-in-oil-1)

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*Product available on Desertcart Croatia*
*Store origin: HR*
*Last updated: 2026-03-08*