---
title: "7 Key Engine Areas That Require Lubrication and Their Oil Requirements"
canonical: "https://www.fl-sz.cn/en/news/7-key-engine-areas-that-require-lubrication-and-their-oil-requirements"
lang: "en"
type: "news"
publisher: "ShangHai F&L Petrochemical Co.,Ltd."
pricing: "not-published"
published: "2026-10-09"
alternate: "https://www.fl-sz.cn/zh/news/7-key-engine-areas-that-require-lubrication-and-their-oil-requirements.md"
---

# 7 Key Engine Areas That Require Lubrication and Their Oil Requirements

> Source (canonical): https://www.fl-sz.cn/en/news/7-key-engine-areas-that-require-lubrication-and-their-oil-requirements
> Published by: ShangHai F&L Petrochemical Co.,Ltd. — specialty lubricant and industrial chemical distributor
> This page is a news item.
> Language: English · Also available in Chinese: https://www.fl-sz.cn/zh/news/7-key-engine-areas-that-require-lubrication-and-their-oil-requirements.md

## Summary

Engine components operate under different temperatures, pressures, and friction conditions. This article outlines seven key lubrication areas and explains how wear protection, deposit control, oxidation stability, and oil flow properties support engine performance.

## Content

Engine oil does more than create a lubricating film. It also helps control deposits, limit wear, resist oxidation, and carry away some engine heat. Because operating conditions vary across components, engine oils must balance several performance properties.

1. Valve Train: Wear Protection and Low-Temperature Flow
Camshafts, followers, and related contact surfaces experience repeated loading, with some areas operating under boundary-lubrication conditions. Suitable viscosity, anti-wear protection, and low-temperature pumpability help reduce wear during start-up and operation.

2. Pistons and Piston Rings: High-Temperature Protection and Deposit Control
High temperatures around the pistons can promote varnish and carbon deposits. Thermal stability, detergency, dispersancy, and wear protection help control deposits and reduce the risk of piston-ring sticking.

3. Crankshaft Bearings: Oil-Film Formation and Wear Protection
Crankshaft bearings rely on an oil film to support loads. Appropriate viscosity and oil supply help maintain that film, while anti-wear protection, corrosion control, and effective filtration help reduce surface damage.

4. Oil Passages: Cleanliness and Filtration
Sludge, oxidation products, and contaminants can affect oil flow and, in severe cases, restrict supply. Detergency, dispersancy, and effective filtration work together to limit contaminant accumulation and help keep oil passages clear.

5. Crankcase Oil Environment: Oxidation and Shear Stability
Prolonged exposure to heat, air, and combustion by-products can cause oxidation, thickening, or viscosity changes. Oxidation and shear stability help maintain the required lubrication performance and control sludge formation.

6. Gasoline-Engine Pistons and Combustion-Related Areas: Deposit Control
Abnormal combustion conditions and oil consumption can contribute to deposits. Engine oil must balance piston cleanliness with compatibility requirements for the engine and emissions after-treatment system. The specific requirements depend on engine design and oil specifications.

7. Turbochargers and Hydraulic Lifters: Thermal Stability and Cleanliness
Turbocharger bearings operate at high temperatures and speeds, requiring suitable oil supply and oxidation stability. Hydraulic lifters depend on engine oil for operation, so fluid cleanliness and foam control also matter.

Lubrication requirements across the engine are interconnected. Engine oil must balance wear protection, deposit control, oxidation stability, viscosity control, and low-temperature performance. Always follow the vehicle manufacturer’s specified viscosity grade and performance requirements, and inspect and replace the oil according to the maintenance schedule.

## Enquiries and technical support

Send the operating conditions — temperature, speed, load, and whether there is food or pharmaceutical contact. An engineer replies with a selection proposal and a written quotation within one business day.

- Enquiry form: https://www.fl-sz.cn/en/contact
- Email: info@fl-sh.com
- Phone: +86-400-879-3341