It should always be a top priority to make sure that your vehicle’s engine is always running at its best. And using the best motor oil will keep it running smoothly for years to come as well as improve your vehicle’s efficiency.
This is especially the case if you carry heavy loads, where the use of a good diesel oil is critical.
So, to keep your vehicle in peak condition, let’s take a look at the best diesel oils currently on the market and find the perfect one for you…
- 1 Top 6 Best Diesel Oils You Should Buy In 2021 Review
- 1.1 1 TOTAL 184952-3PK Quartz 9000 Energy 5W-40 Engine Oil – Best Performing Diesel Oil
- 1.2 2 Royal Purple ROY04154 04154 15W40 Oil – Most Versatile Diesel Oil
- 1.3 3 Mobil Super 96819 15W-40 Delvac 1300 Motor Oil – Best High Performance Diesel Oil
- 1.4 4 AmazonBasics Full Synthetic Motor Oil – 5W-40 – Best Budget Diesel Oil
- 1.5 5 Castrol 06669-6PK Edge Euro 5W30 Diesel Motor Oil – Best Truck Diesel Oil
- 1.6 6 Red Line RED21405 15W-40 Diesel Oil – Best Multi Purpose Diesel Oil
- 2 Best Diesel Oils Buying Guide
- 3 Looking for more high quality products for your car?
- 4 So, what are the Best Diesel Oils?
Top 6 Best Diesel Oils You Should Buy In 2021 Review
1 TOTAL 184952-3PK Quartz 9000 Energy 5W-40 Engine Oil – Best Performing Diesel Oil
This is one of the purest and most sophisticated motor oil products currently available. It provides numerous benefits due to its unparalleled performance and protection.
It has been specially engineered to enhance fuel mileage and optimize horsepower as well as acceleration.
Keep it cool…
Also, it ensures the safety of your engine safety with standardized synthetic base oils and advanced molecules that last longer than traditional oils and create a strong barrier to regulate the heat produced by friction. This also allows the engine to withstand wear better and prevent metal surfaces from coming into contact with critical internal structures.
This engine oil is designed to withstand various conditions, including hot and cold weather, heavy loads, and dirty conditions.
- Enhances performance and protects your engine.
- Works well at extreme temperatures and in all conditions.
2 Royal Purple ROY04154 04154 15W40 Oil – Most Versatile Diesel Oil
The motor oil from the Royal Purple is specially designed to boost performance and meet the high demands of modern engines. It is fortified with high levels of anti-wear zinc/phosphorus additives and incorporates Royal Purple’s patented Synerlec additive technology.
As one of the best oils for diesel engines that you can buy, it is capable of providing an output that blasts past leading synthetic and traditional lubricants for both petrol and diesel engines.
High film strength significantly decreases engine wear and decreases the impact of heat produced by moving parts, thereby prolonging the life of your engine. Plus, as a result of sealing the piston ring and cylinder wall, horsepower and torque are maximized, thus maximizing fuel economy. In fact, it is up to three times more powerful than many other synthetic oils on the market.
Enhanced synthetic solvents remove engine deposits, keeping it safe, as well as providing a defense against corrosion.
- Great choice for modern engines.
- Maximizes horsepower and torque.
- High film strength.
3 Mobil Super 96819 15W-40 Delvac 1300 Motor Oil – Best High Performance Diesel Oil
The Mobil Super 96819 15W-40 is a complete synthetic motor oil engineered for the highest performance level, offering outstanding protection against high temperatures even in the most demanding conditions.
This product is another of the best performing diesel oils well worth considering. It was created to prolong the life of your engine no matter how old your vehicle is, and it still undoubtedly outperforms traditional synthetic blended oil products.
Backed by an impressive warranty…
The Mobil Super 96819 meets the current industry standards and is backed by an OEM warranty for up to 7500 miles or the recommended oil change period for your car (whichever is longer).
It includes high-performance additives that guard against sludge deposits and excessive wear. In cold weather, the full synthetic formula is able to help protect vital engine parts and provide an easy start as well as fast oil circulation.
It can withstand temperatures of up to 400° F, preventing oil-related breakdown for long periods of time.
- Superb engine protection in all conditions.
- Quality warranty.
- Operates well at high temperatures.
4 AmazonBasics Full Synthetic Motor Oil – 5W-40 – Best Budget Diesel Oil
The AmazonBasics Full Synthetic Motor Oil is a complete synthetic engine oil engineered to offer maximum engine performance to drivers. Its fluid TITANIUM Technology allows every vehicle to unlock its true potential.
Because friction can lower the output of an engine by up to 10 percent, this product may be useful for those looking to minimize friction in high-performance engines. Plus, film strength can be increased by up to 30 percent by using this product, again reducing the amount of power lost due to friction.
Up to ten times the protection…
It has been specially formulated to be up to ten times more tolerant to high temperatures that can hinder your engine’s output, ensuring optimum performance. And in contrast with the industry norm, it is six times better against wear.
The end result is that your fuel economy will be enhanced, saving you gas in the tank and money in your wallet.
- Very affordable.
- Quality specifications for an affordable product.
- Saves you money in the long run.
- Better quality products are available if you pay more.
5 Castrol 06669-6PK Edge Euro 5W30 Diesel Motor Oil – Best Truck Diesel Oil
This full synthetic diesel oil works well with heavy-duty pick-up trucks and other Class 8 trucks, as well as newer engines designed to lower the amount of pollution. In fact, it meets the API SP Classification for the protection of new engine technology. And it has been formulated to meet the specifications of Exhaust Gas Circulation (EGR) and Diesel Particulate Filter (DPF) systems.
Protection through and through…
It provides up to 40 percent more wear protection than the industry norm with its advanced anti-wear additives. Plus, the full synthetic formula provides better protection of up to 10X against the heat produced by moving engine parts.
Strong detergents help to tackle sludge and deposits, while superior antioxidants prevent the degradation of the motor oil under harsh conditions.
- An excellent heavy-duty option for trucks.
- Quality formula that protects your engine.
6 Red Line RED21405 15W-40 Diesel Oil – Best Multi Purpose Diesel Oil
When it comes to high-performance lubricants, Red Line is also one of the market leaders and is a well-known producer of high-quality diesel oils.
The Red Line RED21405 15W-40 diesel and petrol engine oil is 100 percent synthetic. It is designed especially for modern vehicles with high-displacement engines and catalytic converters. It also works well for cars fitted with direct injection turbo diesel engines.
Practical and versatile…
It is recommended for multi-purpose use in a wide range of cars. It is ideal for petrol, LPG, and diesel fuels, both lead and unleaded.
When maximum durability is required, it is one of the best options on the market for medium and heavy-duty diesel truck engines. And offers outstanding value for long-haul, fleet use when used at extended drain intervals.
All this makes it a very popular choice for light duty trucks such as Chevrolet Duramax, Ford Power Stroke, and the Dodge Cummins.
- A great product from a respected brand.
- Works well in modern engines.
- Versatile and multi-purpose.
Best Diesel Oils Buying Guide
It’s useful to know what makes the best diesel engine oil in order to determine effectively which to buy. Therefore, in this section, we will go through some of the factors that you may want to consider when making your decision.
Look at the grade of viscosity displayed on the product. This is critical because it will dictate the engine’s starting temperature. You need to select a lubricant that is the same as the one shown on your car’s oil cover or as described in the owner’s manual.
The price of your diesel engine oil matters. Therefore, you need to decide which best oil suits your budget and needs. As with most products, they vary in cost, and generally, the more you pay, the better quality you will get. Synthetic oils tend to be considered the best, but this does vary from engine to engine.
A number of oils are not suitable for diesel engines. Therefore, make sure your engine is compatible with the oil you intend to buy.
Ensure that the oil you buy provides full wear safety for your engine.
If you have a variety of vehicles, choosing a multi-functional diesel engine oil is a good option.
Also, bear in mind that fuel efficiency can be improved by a quality engine oil. Therefore spending a little more on a higher priced product may save you a lot of money in terms of fuel savings in the future.
Looking for more high quality products for your car?
Then check out our in-depth reviews of the Best Ow-20 Synthetic Oils, the Best Catalytic Converter Cleaners, the Best Oil Filters for Cars, the Best Rust Prevention, and the Best Carburetor Cleaners you can buy in 2021!
Or, how about our reviews of the Best Fuel Injector Cleaners, the Best Car Waxes, the Best Oil Drain Pans, the Best Automotive Touch Up Paint, and the Best Car Upholstery Cleaners currently on the market.
So, what are the Best Diesel Oils?
We hope we have given you all the information needed to select the perfect diesel oil for your vehicle. If you are still finding it difficult to decide, it could be worth checking out our buying guide, which will give you an idea of what will work best for your needs.
However, we would recommend the…
It’s a completely synthetic motor oil that has been engineered for the highest performance levels and offers incredible protection, even at high temperatures and in the most demanding conditions.