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Motor Oil & Fluids

Expert comparisons, change schedules, and reviews of motor oils, transmission fluids, coolants, and brake fluids. Keep your engine running smoothly.

9+ Reviews
Updated daily
AMSOIL Diesel of the Year 2026 Voting is Open Now

AMSOIL Diesel of the Year 2026 Voting is Open Now

Engine Builder Magazine has opened voting for its 2026 Diesel of the Year competition, with AMSOIL sponsoring the event for another year running. Understanding what this competition reveals about diesel performance and premium lubricants can help you make smarter choices for your own engine.

Liam McCabe Oct 13, 2026
Lucas Oil Extender Promises Longer Oil Change Intervals

Lucas Oil Extender Promises Longer Oil Change Intervals

Lucas Oil has launched Motor Oil Extender, a synthetic treatment designed to help drivers extend oil change intervals, reduce engine contamination, and improve protection for modern engines. This product launch offers consumers a practical way to lower maintenance costs and keep newer vehicle engines running cleaner for longer.

Liam McCabe Oct 1, 2026
Liqui Moly Extends Formula 1 Partnership for Premium Performance

Liqui Moly Extends Formula 1 Partnership for Premium Performance

Liqui Moly has renewed its multi-year partnership with Formula 1, earning Official Supporter status and continuing an eight-year collaboration in elite motorsports. This partnership renewal demonstrates the brand's commitment to engine performance innovation and offers shoppers reassurance about product quality backed by the world's most demanding racing conditions.

Liam McCabe Sep 24, 2026
Transmission Fluid Myth: What Actually Happens

Transmission Fluid Myth: What Actually Happens

This article explains why the long-held belief that changing overdue transmission fluid can damage your transmission is a myth rooted in older vehicle technology. Modern transmissions use adaptive electronic controls that can easily accommodate fresh fluid, making regular transmission maintenance safer and more important than ever.

Liam McCabe Sep 18, 2026
Modern Engines Shift to Lighter Motor Oil

Modern Engines Shift to Lighter Motor Oil

This article explores the automotive industry's shift toward lighter-weight motor oils and what it means for engine efficiency and protection. Understanding why modern engines use thinner oils helps you make the right purchasing decisions and maintain your vehicle properly.

Liam McCabe Sep 16, 2026
Don't Let Color Fool You: Choose the Right Coolant Type

Don't Let Color Fool You: Choose the Right Coolant Type

Coolant color often misleads shoppers into selecting the wrong fluid type for their vehicle. Learning to identify the correct coolant specification protects your engine and prevents costly cooling system failures.

Liam McCabe Sep 16, 2026
Lucas Oil Motor Oil Extender Tackles Rising Maintenance Costs

Lucas Oil Motor Oil Extender Tackles Rising Maintenance Costs

Lucas Oil has introduced a Motor Oil Extender designed to help drivers extend oil life and reduce maintenance frequency amid rising fuel and service costs. Learn what this new product means for your vehicle's longevity and your maintenance budget.

Liam McCabe Sep 10, 2026