Choosing the right motor oil for your car is essential for maintaining engine performance, fuel efficiency, and longevity. With so many different types, viscosities, and formulations available, it can be overwhelming to determine which one is best for your vehicle. Whether you’re due for an oil change or just want to make sure you’re using the right product, this guide will help you understand how to choose the correct oil for your car based on its make, model, and driving habits.
Understanding Oil Types
Motor oil is available in different formulations, each designed to meet specific vehicle needs. The four main types are:
1. Conventional Oil
- Made from refined crude oil.
- Best for older vehicles with simpler engine designs.
- Typically less expensive but requires more frequent changes.
2. Synthetic Oil
- Engineered for better performance, protection, and longevity.
- Ideal for modern engines and extreme driving conditions (hot or cold weather, towing, or stop-and-go traffic).
- Lasts longer and provides better lubrication, reducing engine wear.
3. Synthetic Blend Oil
- A mix of conventional and synthetic oils, offering some benefits of both.
- More affordable than full synthetic but provides better performance than conventional oil.
- Suitable for drivers looking for improved protection without the full cost of synthetic oil.
4. High-Mileage Oil
- Specially formulated for vehicles with 75,000 miles or more.
- Contains additives to reduce leaks and oil consumption in aging engines.
- Helps extend the life of older engines by improving seals and reducing wear.
What Do Oil Viscosity Numbers Mean?
When looking at a bottle of motor oil, you’ll notice a label with numbers such as 5W-30 or 10W-40. These numbers indicate the oil’s viscosity, or thickness, at different temperatures.
- The first number (before the “W”): Indicates how the oil flows in cold temperatures (W stands for “winter”). A lower number means better cold-weather performance.
- The second number: Represents the oil’s thickness at operating temperature. Higher numbers mean the oil remains thicker at high temperatures, which can be beneficial for engines under heavy loads.
Common Oil Grades and Their Uses:
- 5W-30: A versatile, all-season oil commonly used in modern cars, SUVs, and trucks. Works well in both hot and cold climates.
- 10W-30: Slightly thicker at cold temperatures than 5W-30, suitable for older vehicles or moderate climates.
- 0W-20: A thinner, synthetic oil often required for newer engines designed for better fuel efficiency.
- 15W-40: Used in heavy-duty trucks and diesel engines that require extra protection under high loads.
How to Find the Right Viscosity for Your Vehicle:
Your owner’s manual specifies the recommended oil viscosity for your engine. Always follow these guidelines to ensure proper lubrication and engine protection.
Choosing the Right Oil Based on Your Driving Habits
Different driving conditions can affect the type of oil you need. Consider these factors when selecting motor oil:
Frequent Short Trips
If you often take short trips where the engine doesn’t fully warm up, choose a synthetic oil that flows easily at cold temperatures. This prevents excessive wear from frequent starts and stops.
Extreme Weather Conditions
- Cold Climates: Use a lower viscosity oil like 0W-20 or 5W-30 for easier cold starts.
- Hot Climates: A slightly thicker oil like 10W-30 or 10W-40 helps prevent overheating and excessive wear.
Towing or Heavy Loads
If you tow trailers, carry heavy loads, or drive in mountainous areas, a high-performance synthetic oil (such as 5W-40 or 15W-40) provides better protection against high heat and engine strain.
Older or High-Mileage Vehicles
For cars with over 75,000 miles, high-mileage oil helps condition seals, reduces leaks, and improves engine performance.
Let Harris Automotive Help You Choose the Best Oil for Your Vehicle
Still unsure which oil is right for your car? At Harris Automotive, our ASE-certified technicians are here to help! We offer expert oil change services using the best products to keep your engine running smoothly.
Why Choose Harris Automotive for Your Oil Change?
- Free Safety Inspection with every service.
- Quality Oil & Filters to match your vehicle’s specific needs.
- Fast & Convenient Service at our Westerville and Blacklick locations.
- Honest, Family-Owned Auto Care you can trust.
Schedule Your Oil Change Today!
Using the right oil is key to keeping your engine in peak condition. Whether you need a standard oil change or expert advice on selecting the best oil for your vehicle, Harris Automotive has you covered. Call and Schedule an appointment today and drive with confidence!
