When its time for a oil change, its also time to make a big decision. Here’s what you need to know to pick the best motor oil AKA engine oil for your car or truck.

When your oil change interval comes around, you’ve got no shortage of options for the best motor oil to feed your engine. The hard part is deciding between so many great names and features. What’s the best motor oil you ask? That depends on your vehicle’s characteristics and mileage. Most folks would say a full synthetic is best, but that doesn’t mean there aren’t great products in each motor oil category.

Before you make your pick, you’re going to want to keep certain items in mind:

  • Consult your owner’s manual for important notes from the manufacturer about the engine and it’s oil change procedures
  • The manufacturer has a particular viscosity recommendation, decided by people who should be trusted
  • The mileage of your vehicle will affect the type of oil formula is best suited for the task: conventional, synthetic, or a blend

After taking all of these items into account, choosing the best engine oil for your vehicle will be a task you’re ready to tackle.

4 Best Motor Oil Products of 2018

Here’s Twelfth Round Auto’s top best car oil picks for this year.

1. Mobil 1 Extended Performance – The Best Full Synthetic

Mobil 1 (120766) Extended Performance 5W-30 Motor Oil - 5 Quart

Mobil 1 Extended Performance, with over 400 reviews (91% of which provided a 5-star rating!), comes in as our choice for a Full Synthetic. This oil only contains additives meant to improve the life of your engine and all it’s moving pieces. With a wide range of operating temperatures and impressive track record, this is a great choice for owners who depend upon their vehicle to perform in a wide array of environments and demands.

2. Royal Purple HMX – The Best High-Mileage

Royal Purple ROY11748 HMX SAE 5W-30 High-Mileage Synthetic Motor Oil

Royal Purple HMX is our choice for preserving your engine for a long and healthy life above 75,000 miles. We feel like this is a no-brainer, thanks to RP’s focus on minimizing the oxidation inside your engine block. More technology was mixed in to provide a larger amount of ionic attraction to metal surfaces and it’s important that your oil clings strong. Keeping the customer’s best interest in mind, features like this will ensure your motor moves freely and efficiently for longer.

Royal Purple has done a great job here, with this one earning more than 250 reviews, with 92% of reviews giving it a 5-star rating!

3. Valvoline Premium Conventional – The Best Premium Conventional

Valvoline 5W-30 Premium Conventional Motor Oil

Valvoline Premium Conventional, a trusted name in oil for over 150 years, tops our list for the best engine oil with a conventional formula. Valvoline has done a great job of preparing a recipe here that exceeds the acceptable standards in all markets, both with turbocharged and non-turbo engines. This is an impressive feat for them to achieve and one their customers benefit from greatly. We’re super pleased with their results and believe you will be too!

4. Castrol GTX Synthetic Blend – The Best Synthetic Blend

Castrol 03102 GTX High Mileage 5W-30 Synthetic Blend Motor Oil

Castrol GTX Synthetic Blend is a sure-fire choice for those looking for a great mix of serious performance benefits. Castrol motor oils are the recommended choice for such prestigious European car brands as BMW, Audi, Volkswagen, Jaguar, and Land Rover.

What to Look for When Buying Motor Oil

Here’s a few things to keep your eye on before dropping that dough. Many folks have dubbed their brand as the best oil brand, claiming their Castrol is the “best engine oil in the world”. While Castrol makes a great oil, there are many competing brands who also make excellent products. More important than finding the best car oil brand is finding the best oil for your car. Your specific make, model, year, and mileage.

Manufacturer Recommendations

The car, truck, or SUV you’re driving went through a significant investment of time and money by teams of design and development staff before it found its way to the showroom floor. “Most designs take 3-5 years to go from initial concept to consumer-ready production units.” – TorqueNews, 2012

Within that span of time, we assume hundreds of people were a part of the process, and every one of them was extremely well-qualified to do so. That being said, the recommendations those people made regarding how to care for the vehicle long-term are not something to take lightly.

Let’s Talk Engine Oil Viscosity

The oil you put in your vehicle’s engine is going to be put through extreme conditions. Motors are subjected to high operating speeds, high operating temperatures, and long hours of use.

Your choice of oil needs to be API-approved and it needs to be the right viscosity. The viscosity determined by your manufacturer as the best oil for your engine was a choice which included many different factors:

  • External temperatures
  • Operating temperatures
  • Approved load range
  • The weight of affected components

After considering all these factors and the range of operation, your engine was assigned an approved viscosity rating. The most common ratings for a gasoline engine are 5W-30, 5W-20, and 0W-20. The most common ratings for a diesel engine are 15W-40 and 5W-40.

Best Car Oil

Let’s Talk Oil Formulas

Conventional Oil is the usual recommendation for new cars. When using conventional oil, a good rule to follow is to change your oil in intervals of 3,000-4,000 miles. Full synthetic oil is the best engine oil for high-performance vehicles. You’ll find that this recommended in motors that spin to higher RPM limits, higher temperatures, or are intended to operate under a higher load more often. Synthetic blend is a good option for walking the line between the two listed above. If Full Synthetic is too expensive, but you’d like for your engine to enjoy some of the benefits, this is the choice for you.

High-mileage oil is designed from the start to serve an engine with more than 75,000 miles on its clock. Components are more likely to experience operating issues above this mileage, so oil brands offer product lines specifically intended for use in these vehicles.

Who We Recommend For You

As you would have seen in when we discussed the 5 Best Synthetic Motor Oils of 2018, we’re here to be a resource for you. You came to us hoping to find how to choose the best engine oil for your vehicle, so here are our top recommendations for you! Designed to help prevent sludge build-up on engine internals, the GTX Synthetic Blend is a key to long-lasting engine life.

Choose the Best Engine Oil for You

It’s a critical choice and you need the best information to help you make the right choice for you. We’re here to help with that decision and all decisions about your vehicle’s health. When it comes time to look after your vehicle’s motor, keeping up with your oil changes at the manufacturer’s recommended intervals is the easiest way to keep your vehicle running better for longer.

You’ll find more information about our recommendations by visiting our website and browsing our categories. If you’ve got specific questions about our recommendations or about other options on the market, please drop by our contact page and get in touch! Make the right choice for your vehicle with our help – every time!

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