How Does the Right Motor Oil Improve Your Car's Fuel Economy?

How Does the Right Motor Oil Improve Your Car's Fuel Economy?

The lifespan and fuel efficiency of a car heavily rely on its maintenance and the conditions in which it is driven. Essential maintenance practices, like adhering to the manufacturer's guidelines, regular servicing, and monitoring the engine, are crucial. However, the choice of engine oil deserves special attention.

The engine oil you select is pivotal to your car's smooth operation, influencing not just engine performance but also fuel economy. Many drivers struggle to identify the appropriate oil, as not all engine oils are suitable for every engine type. Selecting an oil with the correct viscosity is crucial. This blog aims to guide you in choosing the right engine oil, enhancing your car’s fuel efficiency and longevity.

Moreover, enhancing fuel efficiency is a growing focus of government regulations to reduce emissions. The Corporate Average Fuel Efficiency/Economy (CAFE) standards, adopted in numerous countries, including India, reflect this trend. These standards aim to reduce vehicle fuel consumption and Carbon dioxide (CO2) emissions. This approach fulfills both environmental and economic objectives.

How Does Car Engine Oil Impact the Fuel Economy?

Selecting the appropriate engine oil is key to maximizing a vehicle's fuel efficiency. Both highly viscous and low viscous oils can have a notable impact on engine performance. Using an oil that is optimally formulated enhances fuel economy and also contributes to the prolonged lifespan of engine components.

i) Minimizing Friction

Engine oil's primary role is to reduce friction and protect engine parts. Each oil has a certain level of internal resistance influencing its efficiency. Opting for a low viscosity oil minimizes friction, allowing smooth flow through the engine. This efficiency reduces metal-to-metal contact, leading to less fuel consumption while safeguarding the engine against wear and tear.

ii) Preventing Sludge Buildup

A well-formulated engine oil resists the formation of sludge that can clog engine components like air filters, strainers, and oil passages. If oil flow is hindered, engine performance drops and fuel consumption rises.

iii) Choosing the Right Type - Mineral vs Synthetic

Lubricants fall into categories like mineral, semi-synthetic, and synthetic, based on their base oil. Although cheaper, mineral oils derived from crude oil have limitations in fuel economy and performance. In contrast, synthetic oils, tailored to specific needs, enhance engine performance, including fuel economy. With lower internal resistance and better high-temperature tolerance, synthetic oils offer superior engine protection and efficiency compared to mineral or semi-synthetic oils.

Choosing the Right Engine Oil: A Guide to Optimal Engine Health

Selecting the appropriate engine oil is vital for maintaining your engine's health. Incorrect oil can lead to increased fuel consumption by impeding the movement of pistons and other engine parts. This additional strain on the engine leads to higher fuel usage, negatively impacting fuel economy. Your owner’s manual is the best resource for finding the right oil grade and specifications for your car. Let’s break down what you need to know to choose the oil that will enhance your car's fuel economy.

a) Understanding Viscosity

Viscosity refers to how easily an oil flows. A higher viscosity number (like 20W-50) means thicker oil, which flows more slowly. In contrast, lower viscosity oils (like 5W-40) are thinner and flow more quickly, easing the workload on the oil pump and aiding engine cranking, thereby reducing fuel consumption.

For example, Veedol Syntron 0W-20 is designed for the latest hybrid engines, requiring low viscosity for optimal fuel efficiency and engine durability.

The right viscosity depends on your car manufacturer's guidelines, your local climate, and your driving conditions. Modern engines with tighter tolerances often require lower-viscosity oils for improved fuel efficiency and protection. In hotter climates, a slightly higher viscosity may be beneficial for maintaining proper engine lubrication.

b) Oil Performance Categories

Engine oil labels feature acronyms like API, ACEA, and ILSAC, signifying compliance with the standards of these organizations. These categories are crucial as they indicate the oil's performance and quality. Familiarizing yourself with terms like API (SP, SN Plus, SN, SL), ACEA (A3/B4, A5/B5, C2, C5), and ILSAC (GF-6A / GF-6B, GF-5) can guide you in selecting an oil that optimizes fuel economy.

c) Driving Conditions and Habits

Your car's fuel economy is also influenced by road conditions, driving habits (like frequent stops or hilly terrain), and driving environment (city versus highway). These factors should be considered when choosing your engine oil.

For enhanced vehicle efficiency, synthetic oils are often the preferred choice. These chemically engineered oils provide superior lubrication, thermal stability, and longevity. They are crafted to offer the best protection against wear and tear caused by regular driving activities, ensuring your engine stays in top condition.


Veedol emerges as the professional's choice for your car's engine, offering a range of engine oils tailored to meet diverse needs. Their product line spans performance, professional, and premium categories, ensuring there's a perfect match for every engine requirement. Notably, Veedol's premium synthetic oils are expertly formulated to reduce engine noise and vibration, enhance durability, and improve fuel economy. Within the Veedol Syntron range, options like 0W-16 (API SP), 0W-20 (API SP), 5W-30 (A5/B5), and 5W-40 (A3/B4) are available, catering to the latest BS 6 emission norm-compliant passenger cars and previous generation models alike. To ensure optimal compatibility and performance, it's recommended to refer to your car's manual for guidance on the appropriate oil grade. Choose Veedol for a blend of quality and performance that keeps your vehicle running at its best.