Motor-Oil-Brands
Best Motor Oil for High Mileage Engines: Tested Picks and Buying Guide
Best motor oil for high mileage engines needs seal conditioners, strong antioxidants, and the right viscosity. Here are the top picks and what to look for.
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Browse all motor oil guides, reviews, and troubleshooting articles
Motor Oil Basics & Label Reading
What Is Viscosity Grade? The SAE System Explained
What is viscosity grade? It's the SAE standard for how oil flows at cold and hot temperatures. Here's how the grading system works and how to read it.
Motor Oil Basics & Label Reading
How to Read a Motor Oil Label: API, SAE & ILSAC Explained
Motor oil labels carry six pieces of information — most drivers decode one. Here's what SAE viscosity, API SP, ILSAC GF-6A, and the rest actually mean.
Motor Oil Basics & Label Reading
How to Choose the Right Motor Oil for Your Car
Learn how to choose motor oil using your owner's manual, SAE viscosity grades, and API specs. Includes a selection table for all vehicle types.
Motor Oil Basics & Label Reading
Engine Oil Viscosity Explained: What 0W-20 Actually Means
0W-20, 5W-30, 10W-40: the numbers on your oil cap follow a specific system. Here's what each part means, why it matters, and how to read it.
Motor Oil Basics & Label Reading
Does It Actually Matter What Motor Oil You Use?
Does it matter what oil you put in your car? Viscosity grade matters a lot. Brand matters much less. Here's exactly where the line falls.
Motor Oil Basics & Label Reading
Dexos1 Motor Oil: What Every GM Owner Needs to Know
Dexos1 motor oil is GM's proprietary spec — not just API SP. Gen 3 is current. What the oil cap mandate means, why it matters, and which oils qualify.
Motor Oil Basics & Label Reading
Best Motor Oil for GDI Engines: What LSPI Protection Actually Means
Best motor oil for GDI Engines requires API SP with LSPI protection. Here's what that means, which oils qualify, and what to avoid.
Motor Oil Basics & Label Reading
API SP Motor Oil Ratings: SP, SN Plus, and ILSAC GF-6 Explained
API SP replaced SN Plus in 2020. ILSAC GF-6A and GF-6B cover newer thin-oil engines. Here's which certification your car actually needs and why.
Motor Oil Basics & Label Reading
ACEA C3 Motor Oil: What It Means and Which Oils Actually Meet It
ACEA C3 motor oil is the European standard for petrol and diesel engines with emissions equipment. What the spec requires and which oils carry it.
Engine Oil Problems & Symptoms
Why Is My Car Burning Oil? Common Causes and What to Do
Why is my car burning oil? Two causes: valve stem seals and piston rings. Here's how to tell which one and what to do about it.
Engine Oil Problems & Symptoms
Why Does My Engine Tick When Cold? The Oil Connection
Morning engine tick that goes away after warm-up? Usually oil-related and often preventable. Here's what causes it and when to worry.