It is important to have the best 5w40 engine oil. Let’s take you step by step, type by type, and find the best 5w40 engine oil for you.

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Our Top Picks:

Best Overall: Buy: Liqui Moly 5W40 Engine Oil READ REVIEW

Best For High Performance: Buy: Motul 5W40 Engine Oil READ REVIEW

Best For Engine Noise: Buy: Castrol 5W40 Engine Oil READ REVIEW

Best For Older Cars: Buy: Pennzoil 5W40 Engine Oil READ REVIEW

Best For Gasoline Engine: Buy: Valvoline 5W40 Engine Oil READ REVIEW

Best For Light Weight: Buy: Motul Oil 5W40 Engine Oil READ REVIEW

Best For Truck: Buy: Schaeffer Manufacturing Co 5W40 Engine Oil READ REVIEW

Best For Car: Buy: Mercedes Benz 5W40 Engine Oil READ REVIEW

Best For Cheap Price: Buy: Mobil 5W40 Engine Oil READ REVIEW

Best Overall: Liqui Moly 5W40 Engine Oil

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The Liqui Moly 5W40 Engine Oil is capable of outshining several other oils featured in this list in overall features. The liqui moly 5w40 engine oil has increased oil consumption, It works perfectly and has a nice design. The Manufacturer says: And we have been raising the bar in terms of quality and service for 60 years. In addition, it is brand new and it looks good.

The oil is single and it is great with an amazing price. And, the oil is compatible with commercially-available engine oils. Lastly, the liqui moly 5w40 engine oil is simply the best, has features for the lowest price and it is made with low ash.

Almost all buyers opine that the oil is used to use motul, but this runs smoother. Also, they also found that the oil is a great brand, but the brand won't play a factor in which type of oil you should use. Also, a few say that the oil will get another 200k with proper maintenance and liqui molly in the oil sump.

• Rapid oil delivery at low temperatures, high lubrication reliability at high and low temperatures.
• This is approved by bmw and liqui-moly for your 14 m5.
• This is the best and it is designed to be worth every penny.
• This is better than mobil1, it is very happy and has a unique design.

Best For High Performance: Motul 5W40 Engine Oil

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If you often find yourself confused about appropriate and satisfactory oil, Motul 5W40 Engine Oil should be your first option for buying. The motul 5w40 engine oil is perfect for an affordable price and it can get for a reasonable price. Varies in weight and viscosity, as well as additives that some manufacturers add to the oil during the refining process. And, it is more stringent than 229.

The oil is crafted with great seller, It makes it much quieter and has great design. Also, it has an sae viscosity rating of 5 in cold temperatures and a rating of 40 at normal operating temperature. Above all, the motul 5w40 engine oil has good experience and it is really great.

Most customers find that the oil does after a couple thousand miles. Furthermore, a few also found that the oil is great priced oil to meet late model Mercedes specs. In addition, they say that this is a good, solid oil that is packaged well.

• This sounds better, is more responsive and it is used for great products.
• This is quieter and goes away quicker than the old oil.
• This is great with the 1.8t engine.
• This is a full synthetic oil, meaning crude oil is not used in making it.

Best For Engine Noise: Castrol 5W40 Engine Oil

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The Castrol 5W40 Engine Oil's high-end materials make sure that it ages well with use. The castrol 5w40 engine oil can qualify for free shipping and it is perfect for great quality. Castrol edge provides the highest level of protection for critical engine parts, helping your car to perform at its maximum. Moreover, this is great for the price, is good for fast delivery and it is great for higher performance.

The oil is made for price point and it works great. And, it is better than mobil1 and it is going strong. Above all, the castrol 5w40 engine oil burns out faster and it is good for starting the engine.

Most buyers opine that the oil is packaged to prevent damages. Further, they strongly agree that the oil is the sought after German version of castrol engine oil. Moreover, they also found that this oil is simply liquid velvet, for your engine.

• 42 percent better rating on fighting power robbing deposits.
• This is what is recommended for the newer high - end cars.
• This can be used as a replacement for mobil1 in the Mercedes cl550 car.
• This comes with great reviews and it works perfectly.

Best For Older Cars: Pennzoil 5W40 Engine Oil

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Next on the list, we've got yet another oil that manages to win our hearts. It's the Pennzoil 5W40 Engine Oil and it's widely considered as one of the most convenient oils you can buy. The pennzoil 5w40 engine oil can be used in both passenger car gasoline and light-duty diesel applications. Make sure this fits by entering your model number. Further, it is very quiet and it has a big difference.

The oil makes for a great buy and it is noticeable. Most importantly, the pennzoil 5w40engine oil has fuel consumption and it is highly recommend.

Most customers opine that the oil is recommended for bmws with high mileage that burns oil. In addition, they strongly agree that the oil is a euro formula which is rubbish really. And, a few also found that this is high quality oil and it 'll probably perform better than the motorcycle oil that may be more expensive. With no doubts, this product passed the test and had very satisfied buyers eager to share their experience.

• Helps protect engines from loss of horsepower.
• This is packaged in a cardboard box.
• This is one of the best oils for an Euro engine, it is bmw ll.
• This is great oil for a fiat 500 abarth.

Best For Gasoline Engine: Valvoline 5W40 Engine Oil

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The Valvoline line of oil comes in a pretty wide variety of styles, so you can definitely find one that suits your individual preferences and needs. The Valvoline 5W40 Engine Oil is the “the only one” endorsed and recommended by cummins and features exceptional oxidation resistance, outstanding wear protection and superior deposit performance compared to industry requirements. The Manufacturer says: From our flagship motor oils to antifreeze and gear oil, valvoline offers a full range of engine lubricants and cleaners to help keep your vehicle on the road and running at peak performance. Also, the oil is white, is effective and it is great with less smoke.

The oil is made with friction modifier, can wait for a great deal and it is used for oil temp. In addition, it is because of this legacy that people have trusted valvoline products in their vehicles from the model to today's newest models. Lastly, the valvoline 5w40 engine oil worked fine and it is designed for a longer life.

Most buyers quickly discovered that the oil has the MS spec for both the ed and ctd. Further, they also found that the oil is the right oil in the open jug. Also, they say that the oil is designed for a gasoline engine.

• Outstanding oxidation resistance supports long oil life in heavy duty engines.
• This is suitable for use in your 2016 ram 1500 with a 3.0l diesel.
• Delivers extreme protection for diesel and gas engines.
• This is not compatible with the mb 229.51 engineoil specification.

Best For Light Weight: Motul Oil 5W40 Engine Oil

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The Motul Oil 5W40 Engine Oil's material feels more premium than its price would suggest. The motul oil 5w40 engine oil price is good and it allows for higher performance. Make sure this fits by entering your model number. And, the oil is best for engine protection and it makes for great protection.

Finally, the motul oil 5w40 engine oil feels smoother, works well for light weight and it is good for high temperature.s.

Almost all customers agree that the oil is a newer version with more approvals. And, a few also found that the oil is approved by more manufacturers for use in more automobiles and trucks. Obviously, this oil passed the test and had very satisfied buyers eager to share their experience.

• This used to have that lifter type noise, now it’s gone.
• This provides better oxidation stability and deposit control.
• Standards: acea a3 / b4, api sn / cf.
• This is the best oil for a subaru and any high heath forced inductioned engine.

Best For Truck: Schaeffer Manufacturing Co 5W40 Engine Oil

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The Schaeffer manufacturing co 5w40 engine oil should be able to handle its purpose and duties with ease. The Schaeffer manufacturing co 5w40engine oil has excellent cold cranking, has excellent cold cranking startability and it is made with low ash. You need it to last as long as possible. And, it is green and it is highly recommend.

Above all, the Schaeffer Manufacturing Co 5W40 Engine Oil protects against oil aeration and it is compatible with conventional oils.

Most customers opine that the oil is a top tier synthetic oil. In addition, a few say that the oil is the same oil as the older label schaffer’s 9000. Moreover, they also found that this oil can take longer drain intervals.

• Superior cold weather startability and operating characteristics.
• Hasn't definitely improved oil consumption ?.
• Friction modified with micron moly and penetro.
• Keep-clean performance: superior soot busting, deposit-dispersing capability.

Best For Car: Mercedes Benz 5W40 Engine Oil

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Mercedes Benz offers a variety of oil for personal choice and yet maintains quality in all the variants. The Mercedes benz 5w40 engineoil comes with excellent service and it makes for a great buy. Make sure this fits by entering your model number. In addition, the oil is good for good quality and it works for oil pan.

Above all, the Mercedes benz 5w40 engine oil is green and it is highly recommend.

Almost all customers opine that the oil takes 7 to 4 quarts, according to the Mercedes benz website. Moreover, they strongly agree that the oil is developed in conjunction with mobile oil for turbo charged engines (you can find the 5w-40 mobile oil on line also) however. And, they also found that this oil is real, mercedes benz 229.5 spec for gas engines.

• This will have a computer system to determine when your oil needs changed.
• This comes with part number and it can search for brand names.
• Genuine mercedes-benz fully synthetic engine oil.
• 1 liter / 1.056 US qts.

Best For Cheap Price: Mobil 5W40 Engine Oil

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We would, of course, be remiss if we didn't mention Mobil 5W40 Engine Oil for daily usage. The mobile 5w40 engine oil is perfect for non - turbo and has a great design. For best performance, follow the manufacturer's recommendations in your vehicle owner’s manual. This product meets or exceeds the requirements of the latest api, acea, and global industry specifications for diesel engine oils, as well as the requirements of virtually all major American and European engine manufacturers.

The oil is recommended for use in a wide range of heavy-duty applications and operating environments found in the on-road transport and off-road mining, construction, and agricultural industries. And, this is great for low viscosity and it is professional. Most importantly, the mobil 5w40 engine oil is a fully synthetic supreme performance heavy duty diesel engine oil that helps extend engine life while providing long drain capability and potential fuel economy for modern diesel engines operating in severe applications.

Almost all buyers found that the oil is easy to order, shows up as advertised. Also, they also found that the oil is great oil for a dirt cheap price. Further, they also found that this oil ( 5w40 ) has a max of 1 % bulk mass for sulfur according to specs. To sum up, for almost all buyers, Mobil product was just what they wanted.

• This allows for great performance, looks good and it is suitable for lawn mower.
• This improves fuel mileage and quiets the engine.
• This is best for cold starts and it going strong.
• This is the best oil you can buy for a diesel engine.