The 10 Best 5W40 Full Synthetic Oils (2022 reviews)

5w40 full synthetic oils
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If you are looking for collection of best 5w40 full synthetic oils, Your search ends here.

Our review process:

Our Top Picks:

Best Overall:
Buy: Shell Rotella 5W40 Full Synthetic Oil
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Best For High Performance:
Buy: Pennzoil 5W40 Full Synthetic Oil
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Best For Better Price:
Buy: Liqui Moly 5W40 Full Synthetic Oil
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Best With Amazing Price:
Buy: Castrol 5W40 Full Synthetic Oil
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Best For Gasoline Engine:
Buy: Valvoline 5W40 Full Synthetic Oil
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Best For Truck:
Buy: Schaeffer Manufacturing Co 5W40 Full Synthetic Oil
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Best For Tdi Engine:
Buy: Mobil 1 5W40 Full Synthetic Oil
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Best For Golf Tdi:
Buy: Pentosin 5W40 Full Synthetic Oil
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Best For Boat:
Buy: Ford 5W40 Full Synthetic Oil
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Best For Cheap Price:
Buy: Mobil 5W40 Full Synthetic Oil
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Best Overall: Shell Rotella 5W40 Full Synthetic Oil

Shell Rotella 5W40 Full Synthetic Oil
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Here, we review an oil that manages to win our hearts. It's the Shell Rotella 5W40 Full Synthetic Oil and it's widely considered as one of the best oils you can buy. The shell rotella 5w40 full synthetic oil features exclusive triple protection plus technology, formulated with fully synthetic base oils plus advanced additives to protect against wear, deposits, and oil breakdown. Conventional oils form sludge deposits over time, reducing your engine's efficiency and lifespan. Moreover, this allows for a long engine life, it works fine and has a great design.

The oils have more power and higher torque but with higher compression ratios. Most importantly, the shell rotella 5w40 full synthetic oil makes for a great buy, is good for value for money and it is used for auto repair.

Most buyers quickly discovered that the oil is great for flat tappet cams as well as motorcycles with wet clutches. Moreover, a few strongly agree that the oil is a brand new clean funnel and we probably won't be using this oil again. Also, a few strongly agree that this oil is also recommended for jeep diesel engine.s. With no doubts, this oil passed the test and had very satisfied buyers eager to share their experience.

Top Customer Quotes:
  • This is the best combo for 6.0 with 5000 miles oil change.
  • This is used for best value, It works great and has a nice design.
  • This comes in a box with 3 bottles, 1 gallon each.
  • It is great to run the t6 5 40 in your power stroke.

Best For High Performance: Pennzoil 5W40 Full Synthetic Oil

Pennzoil 5W40 Full Synthetic Oil
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The Pennzoil 5W40 Full Synthetic Oil's high-end materials makes sure that it ages well with use. The pennzoil 5w40 full synthetic oil is made from pennzoil's patented gas-to-liquid pureplus technology combined with a high-performance additive system for complete protection. Formulated to deliver faster low-temperature oil flow and protection in extreme heat. In addition, it going strong, allows for very high quality and it is very good.

The oil is very quiet, is strong and it performs as expected. Above all, the pennzoil 5w40 full synthetic oil is made from natural gas, not crude.

Most buyers opine that the oil is one of the best oils for an euro engine, It is bmw ll. Moreover, a few strongly agree that the oil is made from natural gas has been great. Also, a few also found that this oil is api sncf and meets the bmw ll. In short, for most buyers, it was what they were looking for.

Top Customer Quotes:
  • This is actually the “premium” oil for bmw m2.
  • This is the only way to be sure.
  • This works great and it can qualify for free shipping.
  • This is great oil for a fiat 500 abarth.

Best For Better Price: Liqui Moly 5W40 Full Synthetic Oil

Liqui Moly 5W40 Full Synthetic Oil
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The Liqui Moly 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 Liqui Moly 5W40 Full Synthetic Oil is running strong, is ideal for best quality and it worked perfectly. The Manufacturer says: Our solutions are largely based on our own recipes, which we permanently test and adapt to the latest technical circumstances. Moreover, this is made from raw material deliveries, to production, right through to shipment.

Above all, the liqui moly 5w40 full synthetic oil comes with a friction modifier and it is economical.

Most buyers agree that the oil has a grayish color because of a robust additive package. And, they strongly agree that the oil is the best oil for the Mercedes ml320, makes the engine come alive. Moreover, they strongly agree that this oil goes all the way and lubricates the watch quality metals. Overall, at the price, they believe that they got a steal of a deal with it.

Top Customer Quotes:
  • This is a great price on a synthetic motor oil and it comes in liters.
  • This is perfect for vw 1.8t and 2.0t engines.
  • This is the best oil made, hands down.
  • The best oil for vag products and an extremely conveniently designed spout.

Best With Amazing Price: Castrol 5W40 Full Synthetic Oil

Castrol 5W40 Full Synthetic Oil
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The features department is where Castrol 5W40 Full Synthetic Oil truly manages to shine. The castrol 5w40 full synthetic oil runs smooth and it is made for quick delivery. Include conventional, synthetic, diesel, bio - based, hybrid ( blends of conventional and synthetic ), and recycled oils. These standards can apply to both gasoline and diesel - powered engines and are often more demanding than ilsac/api requirements.

The oil has an sae viscosity rating of 5 in cold temperatures and a rating of 40 at normal operating temperature. In addition, this is made for cost savings, is for lower costs and it is convenient. Lastly, the Castrol 5w40 full synthetic oil can sold for a cheaper price, It can be trusted for good quality and has a nice design.

Almost all buyers opine that the oil is the vwoil used by the dealerships. In addition, a few say that the oil is superior to 99% of synthetic oil out there. There can be one or two other brands comparable but won't surpass castrol anti friction titanium additive. Moreover, a few say that this oil is very hard to find and this vendor offers it at a great price. Overall, many customers have used the castrol 5w40 fullsynthetic oil for more than a few months without any complaints, and it shows no sign of giving up.

Top Customer Quotes:
  • This can often cost more than conventional motor oil.
  • This is for superior performance against deposits and it is made for good stuff.
  • This is good for extended drain intervals.
  • It is strong, it tastes great and has a great design.

Best For Gasoline Engine: Valvoline 5W40 Full Synthetic Oil

Valvoline 5W40 Full Synthetic Oil
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We would, of course, be remiss if we didn't mention Valvoline 5W40 Full Synthetic Oil for regular usage. The valvoline 5w40 full syntheticoil is specially designed for hardworking trucks and equipment in both on road and off highway applications. Delivers extreme protection for diesel and gas engines. In addition, this is effective and it is very good.

The oil worked fine and it is designed for a longer life. And, the 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. Most importantly, the valvoline 5w40full synthetic oil is great with less smoke and it is used for oil temp.

Almost all customers agree that the oil has the MS spec for both the ed and ctd. And, they say that the oil is designed for a gasoline engine. And, they also found that the valvoline motorcycle or valvoline atv oil meet these specifications. Without any doubt, this product passed the test and had very satisfied buyers eager to share their experience.

Top Customer Quotes:
  • This is the right oil in the open jug.
  • This is not compatible with the mb 229.51 engine oil specification.
  • Superior wear protection for hardworking heavy-duty trucks and equipment.
  • Outstanding oxidation resistance supports long oil life in heavy duty engines.

Best For Truck: Schaeffer Manufacturing Co 5W40 Full Synthetic Oil

Schaeffer Manufacturing Co 5W40 Full Synthetic Oil
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The Schaeffer manufacturing co 5w40 full synthetic oil's superior materials makes sure that it ages well with use. The Schaeffer Manufacturing Co 5W40 Full Synthetic Oil maintains viscosity and performance in higher operating temperatures, allowing for longer oil life and durability. You need it to last as long as possible. And, it has excellent cold cranking startability, is green and it protects against oil aeration.

Above all, the schaeffer manufacturing co 5w40 full synthetic oil has excellent cold cranking 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.

Why We Like This:
  • 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 Tdi Engine: Mobil 1 5W40 Full Synthetic Oil

Mobil 1 5W40 Full Synthetic Oil
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Mobil 1 offers a variety of oil for personal choice and yet maintains quality in all the variants. The Mobil 1 5W40 Full Synthetic Oil has the best price and it is for lower cost. Make sure this fits by entering your model number. In addition, oil is best for a good deal and it works great.

Above all, the mobil 1 5w40 full synthetic oil runs smoother and it is made with great stuff.

Almost all customers opine that the oil will be fine at a 3-5k interval. And, they strongly agree that the oil is good for transporting used oil to recycle center. Also, they also found that this oil is Mercedes certified and they are picky. With no doubts, this oil passed the test and had very satisfied buyers eager to share their experience.

Top Customer Quotes:
  • This oil has better lubricity and does not breakdown, like conventional oil.
  • This has depleted their old stock.
  • This is more Porsche's fault than mobil's.
  • This is great in winter and summer.

Best For Golf Tdi: Pentosin 5W40 Full Synthetic Oil

Pentosin 5W40 Full Synthetic Oil
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The Pentosin 5W40 Full Synthetic Oil gives the top-tier oil a run for their money by offering flagship specs at a much more affordable price. The pentosin 5w40 fullsynthetic oil is a newly formulated, full - synthetic, high-performance engine oil designed for year - round use. Founded in 1927 in Hamburg, Germany, deutsche pentosin-werke gmbh is globally recognized as an innovator and manufacturer of synthetic & mineral oil-based fluids for the automotive industry. These parts address known weaknesses and premature failures of factory parts.

Oil comes with its zero mistake philosophy, Pentosin has met the demanding standards of many of the world's finest automobile manufacturers. Moreover, the oil is great for good quality and it is super fast. Above all, the pentosin 5w40full syntheticoil includes a growing number of “better than oe” parts for selected applications.

Almost all customers opine that oil is one of the lowest cost. Further, they strongly agree that the oil is a high quality engine oil at a very reasonable price. And, they strongly agree that the oil is highly recommended on the passat users web site.

Top Customer Quotes:
  • This is good for 4-5k miles even through a hot hot hot turbo.
  • This offers comprehensive coverage for European and Asian applications, especially late-model vehicles.
  • This maintains outstanding engine performance, additionally protects against corrosion and cavitation, and never foams.
  • This is used for power steering and it is green.

Best For Boat: Ford 5W40 Full Synthetic Oil

Ford 5W40 Full Synthetic Oil
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The Ford 5W40 Full Synthetic Oil's superior materials makes sure that it ages well with use. The ford 5w40 full synthetic oil is running strong and it is affordable. Make sure this fits by entering your model number. Further, this is perfect for being on time and it is good for your country of origin.

Finally, the ford 5w40 full synthetic oil are for right off the bat and it is durable.

Almost all customers opine that oil is the best oil for a ford power stroke diesel in winters. Also, they strongly agree that the oil is made for working super - duty trucks. Moreover, they say that the recommended oil for extreme use for the new ford diesels. Overall, the tone of buyers is very positive and we believe that oil suits the purpose.

Top Customer Quotes:
  • This is simply the best and it is strong.
  • This is ideal for service and over - worked diesel motors.
  • Item package dimension: 10.0" l x 11.0" w x 12.0" h.
  • This is easy to install, beats walking into any auto parts store.

Best For Cheap Price: Mobil 5W40 Full Synthetic Oil

Mobil 5W40 Full Synthetic Oil
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Next on the list, we've got yet another oil that manages to win our hearts. It's the Mobil 5W40 Full Synthetic Oil and it's widely considered as one of the most convenient oils you can buy. The mobil 5w40 full synthetic 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. 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 going strong, is perfect for non - turbo and it comes with great stuff. Also, it is designed for truck engines, is designed for low viscosity, it is strong and has great design. Most importantly, the mobil 5w40 full synthetic oil is the result of extensive cooperative development work with major equipment builders and application of the latest lubrication technology.

Most buyers found that the oil is great oil for a dirt cheap price. Also, a few say that the oil improves fuel mileage and quiets the engine. Moreover, a few say that this oil ( 5w40 ) has a max of 1 % bulk mass for sulfur according to specs. In short, for most buyers, the oil was what they were looking for.

Top Customer Quotes:
  • This is easy to order, shows up as advertised.
  • This is very good, makes for great performance and it is noticeable.
  • This is commercial and it allows for better fuel mileage.
  • This is the best oil you can buy for a diesel engine.