20 Best 5w20 Full Synthetic [2024]

Are you looking for the best 5w20 Full Synthetic? Based on expert reviews, we ranked them. We've listed our top-ranked picks, including the top-selling 5w20 Full Synthetic.

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# Preview Product
1 Castrol 03063 GTX MAGNATEC 5W-20 Full Synthetic Motor Oil, Green, 5 Quart Castrol 03063 GTX MAGNATEC 5W-20 Full Synthetic Motor Oil, Green, 5 Quart
2 Mobil 1 Advanced Full Synthetic Motor Oil 5W-20, 5 Quart Mobil 1 Advanced Full Synthetic Motor Oil 5W-20, 5 Quart
3 Valvoline Advanced Full Synthetic SAE 5W-20 Motor Oil 5 QT (Packaging May Vary) Valvoline Advanced Full Synthetic SAE 5W-20 Motor Oil 5 QT (Packaging May Vary)
4 Pennzoil Ultra Platinum Full Synthetic 5W-20 Motor Oil (5 Quart, Single Pack) Pennzoil Ultra Platinum Full Synthetic 5W-20 Motor Oil (5 Quart, Single Pack)
5 Pennzoil Platinum Full Synthetic 5W-20 Motor Oil (5-Quart, Single Pack) Pennzoil Platinum Full Synthetic 5W-20 Motor Oil (5-Quart, Single Pack)
6 Amazon Basics High Mileage Motor Oil, Full Synthetic, SN Plus, 5W-20, 5 Quart Amazon Basics High Mileage Motor Oil, Full Synthetic, SN Plus, 5W-20, 5 Quart
7 Castrol 03143C Edge High Mileage 5W-20 Advanced Full Synthetic Motor Oil, 5 Quart Castrol 03143C Edge High Mileage 5W-20 Advanced Full Synthetic Motor Oil, 5 Quart
8 Valvoline High Mileage with MaxLife Technology SAE 5W-20 Synthetic Blend Motor Oil 5 QT (Packaging... Valvoline High Mileage with MaxLife Technology SAE 5W-20 Synthetic Blend Motor Oil 5 QT...
9 Quaker State 550044965 Motor Oil, Synthetic Blend 5W-20 (5-Quart, Single Pack) Quaker State 550044965 Motor Oil, Synthetic Blend 5W-20 (5-Quart, Single Pack)
10 Valvoline High Mileage 150K with MaxLife Plus Technology Motor Oil SAE 5W-20 5 QT Valvoline High Mileage 150K with MaxLife Plus Technology Motor Oil SAE 5W-20 5 QT
11 K&N Motor Oil: 5W-20 Full Synthetic Engine Oil: Premium Protection, High Mileage, 4 Quarts K&N Motor Oil: 5W-20 Full Synthetic Engine Oil: Premium Protection, High Mileage, 4 Quarts
12 Royal Purple 51520 High Performance Motor Oil 5W-20 (5QT) Royal Purple 51520 High Performance Motor Oil 5W-20 (5QT)
13 LIQUI MOLY Special Tec AA SAE 5W-20 | 5 L | Fully synthetic engine oil | SKU: 2259 LIQUI MOLY Special Tec AA SAE 5W-20 | 5 L | Fully synthetic engine oil | SKU: 2259
14 Castrol 03060 GTX MAGNATEC 0W-20 Full Synthetic Motor Oil, Green, 5 Quart Castrol 03060 GTX MAGNATEC 0W-20 Full Synthetic Motor Oil, Green, 5 Quart
15 Valvoline Full Synthetic High Mileage with MaxLife Technology SAE 5W-20 Motor Oil 5 QT, Case of 3... Valvoline Full Synthetic High Mileage with MaxLife Technology SAE 5W-20 Motor Oil 5 QT, Case of 3...
16 Motorcraft Full Synthetic Motor Oil XO-5W20-QFS 12 Qt Case Motorcraft Full Synthetic Motor Oil XO-5W20-QFS 12 Qt Case
17 Valvoline Daily Protection SAE 5W-20 Synthetic Blend Motor Oil 5 QT (Packaging May Vary) Valvoline Daily Protection SAE 5W-20 Synthetic Blend Motor Oil 5 QT (Packaging May Vary)
18 Valvoline Advanced Full Synthetic SAE 5W-20 Motor Oil 5 QT Valvoline Advanced Full Synthetic SAE 5W-20 Motor Oil 5 QT
19 TRUEGARD 5W-20 Motor Oil, 55 Gallons Drum TRUEGARD 5W-20 Motor Oil, 55 Gallons Drum
20 Valvoline Extended Protection SAE Full Synthetic Motor Oil SAE 5W-20 5 QT (Packaging May Vary) Valvoline Extended Protection SAE Full Synthetic Motor Oil SAE 5W-20 5 QT (Packaging May Vary)
Bestseller No. 1
Castrol 03063 GTX MAGNATEC 5W-20 Full Synthetic Motor Oil, Green, 5 Quart
  • ATTENTION: Castrol GTX Magnatec will be transitioning to a brand NEW Castrol product, GTX Full Synthetic, on January 1st 2022.
  • Dramatically reduce engine wear and leave critical engine parts 4X smoother
  • Add a layer of protection during warm-up and beyond
  • Cling to critical engine parts when the oil drains down
  • API SN; ILSAC GF-5; GM dexos1; Meets Ford WSS-M2C930-A; Meets Ford WSS-M2C945-A; Meets Ford WSS-M2C153-H
Bestseller No. 2
Mobil 1 Advanced Full Synthetic Motor Oil 5W-20, 5 Quart
  • Mobil 1 advanced full synthetic motor oil 5W-20 helps to protect your engine from the five factors that can damage engines over time
  • Helps to protect critical engine parts for up to 10,000 miles between oil changes*, controlling oxidation to prevent oil breakdown and maintaining...
  • Meets ILSAC GF-6 standards to help provide low-speed pre-ignition (LSPI) and timing chain wear protection while keeping your engine clean and helping...
  • Helps extend engine life by working to prevent damaging deposits and sludge buildup
  • Provides excellent internal engine heat protection (up to 500 degrees F) and low temperature protection (to -30 degrees F)
Bestseller No. 3
Valvoline Advanced Full Synthetic SAE 5W-20 Motor Oil 5 QT (Packaging May Vary)
  • 40% More Protection Than Industry Standards With Enhanced Anti-Wear Additives That Build A Bonus Layer Of Defense Between Critical Moving Parts Within...
  • Resist Oil Breakdown 10X Better Than Industry Standards With A Combination Of Premium Antioxidants That Fight Oil Breakdown And Degradation
  • 25% Better Protection Against Deposits With Extra Engine-Cleaning Detergents
  • Exceptional Temperature Protection And Viscosity Retention Ensure A High Level Of Defense Even In The Most Challenging Climates
SaleBestseller No. 4
Pennzoil Ultra Platinum Full Synthetic 5W-20 Motor Oil (5 Quart, Single Pack)
  • Full synthetic 5W-20 engine oil made from natural gas, not crude, using Pennzoil's patented gas-to-liquid PurePlus Technology
  • No other leading motor oil provides better wear protection for your engine (Based on Sequence IVA wear test using SAE 5W-30)
  • Helps protect engines from loss of power and provides better fuel economy—drive on average an extra 550 miles per year (versus a dirty engine)
  • Keeps pistons dramatically cleaner than required by the toughest industry standards (Based on ILSAC GF-6 and Sequence IIIH piston deposit test using...
  • Delivers unsurpassed sludge protection to help keep high-performance and luxury car engines as close as possible to factory clean (Based on Sequence...
Bestseller No. 5
Pennzoil Platinum Full Synthetic 5W-20 Motor Oil (5-Quart, Single Pack)
  • Full synthetic 5W-20 engine oil made from made from natural gas, not crude, using Pennzoil's patented gas-to-liquid PurePlus Technology
  • Provides better fuel economy—drive on average an extra 550 miles per year (versus a dirty engine)
  • Pennzoil Platinum 5W-20 keeps pistons up to 45% cleaner than the toughest industry standard (Based on Sequence IIIH results)
  • No other leading synthetic oil provides better wear protection from friction (Based on Sequence IVA wear test using SAE 5W-30)
  • Formulated to provide faster low-temperature oil flow and protection in extreme heat
Bestseller No. 6
Amazon Basics High Mileage Motor Oil, Full Synthetic, SN Plus, 5W-20, 5 Quart
  • For best performance, follow the manufacturer's recommendations in your vehicle owner’s manual.
  • Ideal for engines over 75,000 miles and for longer drain intervals
  • Helps prevent build up that can cause rust and corrosion
  • Reduces friction for less engine wear
  • High resistance to viscosity and thermal breakdown
Bestseller No. 7
Castrol 03143C Edge High Mileage 5W-20 Advanced Full Synthetic Motor Oil, 5 Quart
  • Titanium strong for maximum engine performance in vehicles with over 75,000 miles
  • Maximizes short and long term engine performance on high mileage engines
  • Boosted with extra fluid titanium technology to increase oil film strength and reduce film breakdown
  • Reduces leaks, oil burn off and power-robbing deposits
  • Improves fuel economy
Bestseller No. 8
Valvoline High Mileage with MaxLife Technology SAE 5W-20 Synthetic Blend Motor Oil 5 QT (Packaging...
  • 40% Better wear protection than the industry standard with enhanced anti-wear additives, keeping critical engine components safe and preventing metal...
  • Exceptional temperature protection no matter the weather with superior viscosity modifiers to ensure oil flows more easily, coats more completely, and...
  • Enhanced friction performance helps maximize power with advanced friction-fighting agents that properly lubricate moving parts and help your older...
  • Reduce sludge, deposits, corrosion, and rust with added detergents and anti-corrosion additives, sustaining your engine’s performance and preventing...
Bestseller No. 9
Quaker State 550044965 Motor Oil, Synthetic Blend 5W-20 (5-Quart, Single Pack)
  • Synthetic blend 5W-20 engine oil that provides durable wear protection and reduces engine wear
  • Provides corrosion protection against harmful acids generated by engine contaminants
  • Maintains viscosity from start to finish, providing optimal oil film protection
  • Helps engines survive daily commutes from high-speed highway operation to repetitive, stop-and-go driving
  • Combats engine sludge and deposits
Bestseller No. 10
Valvoline High Mileage 150K with MaxLife Plus Technology Motor Oil SAE 5W-20 5 QT
  • 20% MORE DEPOSIT PROTECTION to reduce oil consumption with powerful, grime-cleaning detergents
  • INNOVATIVE DEFENSE FORMULA designed specifically to meet the unique challenges of aging engines
  • MULTI-DIMENSIONAL ANTI-WEAR SYSTEM fights surface friction exceeding protection standards
  • TREAT AND PREVENT LEAKS with premium seal conditioners that rejuvenate aging seals
  • RESIST OIL BREAKDOWNIN TOUGH CONDITIONS with superior antioxidants that preserve oil efficacy
Bestseller No. 11
K&N Motor Oil: 5W-20 Full Synthetic Engine Oil: Premium Protection, High Mileage, 4 Quarts
  • PREMIUM FULL SYNTHETIC: K&N premium synthetic oil helps keep your engine running like new.
  • ADVANCED SYNTHAMAX TECHNOLOGY: Formulated with unique additives to help protect critical engine components.
  • SUPERIOR ENGINE PROTECTION: Advanced formula full synthetic oil is formulated to minimize harmful contaminants and sludge buildup.
  • REDUCE WEAR & TEAR: K&N ultra synthetic engine oil offers premium engine protection.
  • ALL WEATHER PROTECTION: K&N advanced full synthetic motor oil helps your car run smooth in both cold & hot temperature conditions.
Bestseller No. 12
Royal Purple 51520 High Performance Motor Oil 5W-20 (5QT)
  • Better wear protection
  • Increased protection against LSPI
  • Increased fuel efficiency
  • Better protection for vehicle exhaust emissions equipment
  • Improved compatibility with fuels containing ethanol
SaleBestseller No. 13
LIQUI MOLY Special Tec AA SAE 5W-20 | 5 L | Fully synthetic engine oil | SKU: 2259
  • Optimum stability to aging
  • Reduces fuel consumption
  • Ensures a long service life
  • Outstanding engine cleanlines
  • Miscible with all commercially available motor oils
Bestseller No. 14
Castrol 03060 GTX MAGNATEC 0W-20 Full Synthetic Motor Oil, Green, 5 Quart
  • Attention: Castrol Gtx Magnatec Will Be Transitioning To A Brand New Castrol Product, Gtx Full Synthetic.
  • Dramatically Reduce Engine Wear
  • Leave Critical Engine Parts 4X Smoother. As Tested In The Industry Sequence Iva Wear Test
  • Superior Wear Protection On Critical Engine Parts
Bestseller No. 15
Valvoline Full Synthetic High Mileage with MaxLife Technology SAE 5W-20 Motor Oil 5 QT, Case of 3...
  • 50% MORE WEAR PROTECTION than industry standard with enhanced anti-wear additives that prevent unwanted metal-on-metal contact and provide an extra...
  • REDUCE COSTLY REPAIRS by minimizing exhaust system damage with our fully synthetic formulation
  • MINIMIZE HEAT AND ABRASION between moving parts help your high-mileage engine maintain its horsepower and perform its best for longer
  • 25% MORE PROTECTION AGAINST DEPOSITS than the industry standard with extra detergents, keeping your engine clean and sustaining its performance
  • RENEW AGING SEALS AND PREVENT LEAKS with state-of-the-art seal conditioners
Bestseller No. 16
Motorcraft Full Synthetic Motor Oil XO-5W20-QFS 12 Qt Case
  • Top - quality motor oil for Ford, Lincoln and Mercury passenger cars
  • American Petroleum Institute (API) - certified for gasoline engine service ILSAC GF - 5 and meets API SN or Energy Conserving
  • Manufactured with high - viscosity index, premium - quality, synthetic base oils that provide good high - temperature and low - temperature...
  • Helps protect against high - temperature oxidation, low - temperature gelling, rust, corrosion and foaming
  • Friction - reducing technology provides excellent wear protection and features energy - conserving characteristics, which offer significant...
SaleBestseller No. 17
Valvoline Daily Protection SAE 5W-20 Synthetic Blend Motor Oil 5 QT (Packaging May Vary)
  • PROVEN TO MINIMIZE EVERYDAY WEAR on your engine by providing consistent lubrication and defense
  • OPTIMIZE POWER & FUEL EFFICIENCY with our low friction technology
  • RESIST OIL BREAKDOWN & SLUDGE with added detergents to keep your engine clean
  • EXCEPTIONAL TEMPERATURE PROTECTION defends your engine in even the most severe weather
  • REDUCE COSTLY REPAIRS by protecting critical engine components
Bestseller No. 18
Valvoline Advanced Full Synthetic SAE 5W-20 Motor Oil 5 QT
  • Innovative anti-wear additives provide 50% more wear protection than industry standards as tested in the industry Sequence IVA wear test
  • Full synthetic formula for exceptional high and low temperature protection
  • Extra detergents help fight sludge and deposits
  • Superior antioxidants resist motor oil breakdown in extreme conditions
Bestseller No. 19
TRUEGARD 5W-20 Motor Oil, 55 Gallons Drum
  • Provides fine performance for modern gasoline-powered cars, light trucks and vans
  • Controls sludge and engine deposits
  • Anti-wear additive reduces wear and extends life
  • Suitable for use where API SN is recommended for engine oils
  • Engineered for high temperature and high revving performance engines
Bestseller No. 20
Valvoline Extended Protection SAE Full Synthetic Motor Oil SAE 5W-20 5 QT (Packaging May Vary)
  • 10X STRONGER THERMAL RESISTANCE than industry standards prevents oil breakdown in harsh conditions
  • FIGHT DEPOSITS & SLUDGE with Dual Defense Additive Technology to clean while providing the ultimate defense against wear, so you can experience the...
  • 50% BETTER WEAR PROTECTION than industry standards with anti-wear additives that prvent metal-on-metal contact, protecting your engine’s most...
  • BUILT FOR MODERN ENGINES with a formula optimized to outlast the extreme conditions of today’s vehicles and offer max defense under the hood, even...
  • MAXIMIZE EFFICIENCY & FUEL ECONOMY with friction modifiers that stop moving parts from touching, minimizing energy loss and keeping friction at a...

Having trouble finding a great 5w20 Full Synthetic?

This problem is well understood by us because we have gone through the entire 5w20 Full Synthetic research process ourselves, which is why we have put together a comprehensive list of the best 5w20 Full Synthetics available in the market today.

After hours of searching and using all the models on the market, we have found the best 5w20 Full Synthetic for 2023. See our ranking below!

How Do You Buy The Best 5w20 Full Synthetic?

Do you get stressed out thinking about shopping for a great 5w20 Full Synthetic? Do doubts keep creeping into your mind?

We understand, because we’ve already gone through the whole process of researching 5w20 Full Synthetic, which is why we have assembled a comprehensive list of the greatest 5w20 Full Synthetic available in the current market. We’ve also come up with a list of questions that you probably have yourself.

John Harvards has done the best we can with our thoughts and recommendations, but it’s still crucial that you do thorough research on your own for 5w20 Full Synthetic that you consider buying. Your questions might include the following:

  • Is it worth buying an 5w20 Full Synthetic?
  • What benefits are there with buying an 5w20 Full Synthetic?
  • What factors deserve consideration when shopping for an effective 5w20 Full Synthetic?
  • Why is it crucial to invest in any 5w20 Full Synthetic, much less the best one?
  • Which 5w20 Full Synthetic are good in the current market?
  • Where can you find information like this about 5w20 Full Synthetic?

We’re convinced that you likely have far more questions than just these regarding 5w20 Full Synthetic, and the only real way to satisfy your need for knowledge is to get information from as many reputable online sources as you possibly can.

Potential sources can include buying guides for 5w20 Full Synthetic, rating websites, word-of-mouth testimonials, online forums, and product reviews. Thorough and mindful research is crucial to making sure you get your hands on the best-possible 5w20 Full Synthetic. Make sure that you are only using trustworthy and credible websites and sources.

John Harvards provides an 5w20 Full Synthetic buying guide, and the information is totally objective and authentic. We employ both AI and big data in proofreading the collected information.

How did we create this buying guide? We did it using a custom-created selection of algorithms that lets us manifest a top-10 list of the best available 5w20 Full Synthetic currently available on the market.

This technology we use to assemble our list depends on a variety of factors, including but not limited to the following:

  1. Brand Value: Every brand of 5w20 Full Synthetic has a value all its own. Most brands offer some sort of unique selling proposition that’s supposed to bring something different to the table than their competitors.
  2. Features: What bells and whistles matter for an 5w20 Full Synthetic?
  3. Specifications: How powerful they are can be measured.
  4. Product Value: This simply is how much bang for the buck you get from your 5w20 Full Synthetic.
  5. Customer Ratings: Number ratings grade 5w20 Full Synthetic objectively.
  6. Customer Reviews: Closely related to ratings, these paragraphs give you first-hand and detailed information from real-world users about their 5w20 Full Synthetic.
  7. Product Quality: You don’t always get what you pay for with an 5w20 Full Synthetic, sometimes less, and sometimes more.
  8. Product Reliability: How sturdy and durable an 5w20 Full Synthetic is should be an indication of how long it will work out for you.

John Harvards always remembers that maintaining 5w20 Full Synthetic information to stay current is a top priority, which is why we are constantly updating our websites. Learn more about us using online sources.

If you think that anything we present here regarding 5w20 Full Synthetic is irrelevant, incorrect, misleading, or erroneous, then please let us know promptly!

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FAQ:

Q: Is 5W20 better than 5W30?

A: Yes, a lower viscosity oil like 5w20 will provide less protection than 5w30 in normal operating conditions. However, a lower viscosity oil is better in areas of the country with lower average temperatures and below freezing conditions.

Q: Is it safe to use 5W20 oil instead of 5W30?

A: The answer is NO. It is not safe to use 5W20 in an engine that has 5W30 grade recommendation. As both the oils are 5W, they both have the same viscosity at room temperature or when the engine is not running.

Q: What is the difference between 5W20 and 5W30 oil?

A: The key difference between 5W20 and 5W30 motor oil is that the former is thicker or less viscous. When you pour it into engine, 5W20 oil will create less friction owing to its thinner viscosity , which means it results in less drag throughout the engine parts, such as pistons , valve train, and crankshaft.

Q: Is 5W20 synthetic or conventional?

A: Why 5W20 Synthetic Oil is Superior to Conventional Motor Oil. Synthetic oil provides superior engine protection. Both come from the ground, but that is the only thing they have in common. Synthetic oil removes impurities: It is purified, distilled, and refined.