LIQUI MOLY Leichtlauf High 4100420203633 5W-40

( Brand: Liqui Moly ), ( Manufacturer Part Number: 20363 ), ( Return Notes: Please Verify Fitment Before Ordering No Return ), ( UPC: 100420203633 ), ( Type: Functional Fluid, Lubricant ), ( Grease: Including Additives )

Review LIQUI MOLY Leichtlauf High Tech Sae

**Liqui Moly Leichtlauf High 5W-40** is a premium, full-synthetic motor oil engineered to deliver exceptional performance, longevity, and protection for modern gasoline engines, making it an ideal choice for drivers seeking both efficiency and reliability. This high-quality lubricant is formulated with Liqui Moly s proprietary **Leichtlauf (Lightweight) technology**, which ensures optimal viscosity control and reduced internal friction, allowing engines to operate with greater smoothness and efficiency especially under varying temperature conditions. The **5W-40** viscosity rating provides outstanding cold-weather starting capability, thanks to its ultra-low pour point, while maintaining robust protection at high operating temperatures, making it versatile for both urban driving and highway use.

At the core of this oil s advanced formulation is a **base stock blend of synthetic hydrocarbons**, combined with a carefully selected additive package that includes high-performance **detergents, dispersants, anti-wear agents, and friction modifiers**. These components work synergistically to minimize engine wear, prevent sludge and deposit buildup, and enhance fuel economy by reducing parasitic losses. The **friction-reducing additives** in Leichtlauf High 5W-40 help maintain engine efficiency over extended mileage, contributing to a quieter, more responsive powertrain and potentially extending the lifespan of critical components like pistons, rings, and bearings. This oil is particularly well-suited for turbocharged and high-performance engines, where thermal and mechanical stresses are elevated, as its thermal stability and oxidation resistance help mitigate the risk of breakdown under demanding conditions.

Beyond its technical advantages, Liqui Moly Leichtlauf High 5W-40 is designed with **long-lasting stability**, ensuring it retains its protective properties even after prolonged use. Its **high flash point** reduces the risk of vaporization under high heat, while its **excellent shear stability** prevents viscosity breakdown, maintaining consistent lubrication over time. Whether used in daily commuters, sports cars, or older engines requiring a robust synthetic blend, this oil provides a reliable balance of performance and protection. Additionally, its **low volatility** minimizes oil consumption, making it a cost-effective choice for drivers who prioritize both engine health and fuel efficiency. For those who demand nothing less than the best in lubrication technology, Liqui Moly Leichtlauf High 5W-40 stands as a testament to precision engineering, offering a seamless driving experience backed by decades of expertise in high-performance automotive care.

**Liqui Moly Leichtlauf High 5W-40 (20363) Pros and Cons**

### **Pros**

1. **High-Quality Synthetic Base Oil**

Liqui Moly uses a fully synthetic base oil, which provides superior protection, better thermal stability, and reduced engine wear compared to conventional or semi-synthetic oils. This results in longer oil change intervals and improved engine longevity.

2. **Excellent Cold-Weather Performance**

The 5W-40 viscosity rating ensures good cold-start protection, allowing the engine to lubricate quickly even in low temperatures. This reduces friction and wear during startup, which is particularly beneficial in cold climates.

3. **Advanced Additive Package**

The oil contains a high-performance additive system, including friction modifiers, detergents, and dispersants. This helps maintain clean engine components, reduces friction, and improves fuel efficiency. The "Leichtlauf" (light-running) formulation is specifically designed to minimize internal engine friction, which can lead to better fuel economy.

4. **Compatibility with Modern Engines**

Liqui Moly Leichtlauf High is formulated to meet or exceed industry standards, including ACEA A5/B5 and API SN, making it suitable for most modern gasoline engines, including turbocharged and direct-injection models. It is also compatible with catalytic converters and particulate filters.

5. **Longer Oil Life**

Due to its synthetic composition and advanced additives, this oil can often last longer than conventional oils, reducing maintenance frequency and costs. However, the exact interval depends on driving conditions and vehicle manufacturer recommendations.

6. **Low Ash Content**

The oil has low sulfur and phosphorus content, which helps protect emissions systems, such as catalytic converters and DPFs (Diesel Particulate Filters), from fouling. This is particularly important for vehicles with strict emissions regulations.

7. **Stable Performance Under High Temperatures**

The synthetic base oil maintains its viscosity and lubricating properties even under high thermal stress, reducing the risk of oil breakdown and sludge formation.

8. **Reputation for Durability**

Liqui Moly is a well-regarded brand in the aftermarket, known for producing high-quality lubricants that perform reliably in a wide range of vehicles. Many mechanics and enthusiasts trust Liqui Moly for its consistency and performance.

---

### **Cons**

1. **Higher Cost Compared to Conventional Oils**

As a fully synthetic oil, Liqui Moly Leichtlauf High 5W-40 is more expensive than conventional or semi-synthetic alternatives. While the long-term benefits may justify the cost, it can be a significant upfront expense for budget-conscious buyers.

2. **Potential for Overuse in Some Engines**

While this oil is versatile, some high-performance or older engines may not require such advanced synthetic lubrication. Using a higher-quality oil than necessary might not provide additional benefits and could lead to unnecessary costs. Always follow the manufacturer s specifications.

3. **Limited Availability in Some Regions**

Liqui Moly products may not be as widely available as major brand oils (e.g., Mobil, Castrol, or Pennzoil) in certain areas. This could make refills or top-ups more difficult to obtain.

4. **Mixed Reviews on Fuel Economy Claims**

While Liqui Moly markets this oil as improving fuel efficiency due to its friction-reducing additives, some users report modest or negligible improvements in real-world driving conditions. Results can vary based on the vehicle, driving habits, and other factors.

5. **Potential for Overfiltering in Older Engines**

Some older engines with worn seals or gaskets may leak oil more readily when using high-quality synthetic oils. If your vehicle has a history of oil leaks, switching to Liqui Moly may exacerbate the issue until the leaks are addressed.

6. **Not Suitable for All Engines**

Although this oil is designed for gasoline engines, it is not recommended for diesel engines (unless specified otherwise). Always check the vehicle s manual or consult a professional before use.

7. **Environmental Considerations**

While synthetic oils are generally more efficient, the production and disposal of high-quality synthetic oils may have a slightly larger environmental footprint compared to conventional oils. However, this is a minor consideration for most users.

---

### **Conclusion**

Liqui Moly Leichtlauf High 5W-40 is an excellent choice for drivers seeking a high-performance, fully synthetic oil that offers superior protection, fuel efficiency, and longevity for modern gasoline engines. Its advanced additive package and cold-weather performance make it particularly suitable for vehicles with turbochargers, direct injection, or those operating in varying climates. The oil s compatibility with emissions systems and long-lasting properties further enhance its appeal.

However, the higher cost and potential overuse in non-high-performance engines are drawbacks to consider. If your vehicle s manufacturer recommends a specific oil viscosity or type, it is always best to adhere to those guidelines unless you are certain the Liqui Moly oil meets or exceeds those requirements.

For most modern gasoline engines, especially those in demanding conditions, Liqui Moly Leichtlauf High 5W-40 is a **highly recommended** choice. It strikes a balance between performance, durability, and compatibility, making it a top-tier option for those who prioritize engine protection and efficiency.

If you are looking for a premium synthetic oil that delivers outstanding protection, fuel efficiency, and longevity for your gasoline engine particularly in a turbocharged or direct-injection vehicle **Liqui Moly Leichtlauf High 5W-40 is an excellent and reliable selection**. Just ensure it aligns with your vehicle s specifications and driving needs. Always consult your owner s manual or a trusted mechanic if you have doubts.

Details:

Brand: LIQUI MOLY. Please refer to the item details and for fitment information. Use with extended oil change intervals as per manufacturer. Optimal Engine Performance Smooth Running Outstanding Cleanliness High Shear Stability Saves Fuel And Reduces Pollutant Emissions.

Leichtlauf High Tech SAE 5W-40 Top class fully synthetic, all-season motor oil for superior performance and long engine life. Condition: New. For gasoline and diesel vehicles without particulate filters GPF/DPF .Exceeds strict test requirements specified by major manufacturers.Safe with catalytic converters turbochargers. Domestic Shipping: The shipping cost on this listing or the Free Shipping is for lower 48 States.

Manufacturer: LIQUI MOLY.

part #: 20363 prices

• $39.99-$89.99

specifications automobilefluids:

• brand: Liqui Moly
• mpn: 20363
• return notes: Please Verify Fitment Before Ordering No Return
• upc: 100420203633
• type: Functional Fluid, Lubricant
• grease: Including Additives

general automobilefluids:

• condition: New
• Automotive Tools Supplies > Fluids Chemicals > Motor Oil

returns automobilefluids:

• policy: No Returns

offer automobilefluids:

• options: Ship-to-home
• quantity: 1
• availability: In Stock
• sold: 0
• started: February 20, 2026

shipping automobilefluids:

• service: Flat Rate Freight
• type: Fixed
• cost: $0.00
• class: Freight

seller automobilefluids:

• city: Grant, Michigan
• # reviews: 169947
• rating: 99.2%

payments automobilefluids:

• other
• credit card: Diners-club
• wallet: Paypal

Liqui Moly 20363 Is Similar To:

• Liqui Moly Oil-motor Atf Gear 2043 Engine Oil-mos2 Antifriction Motoroil 10w-40 5 Liter Liqui-moly (32.2% similar) Tested safe with catalytic converters and turbochargers. Quantity 1 - Liqui Moly 10-W40 motor oil 5 liter jug, manufacturer: part number: 2043 condition: new,: perfectly suited for the use in proven and / or high mileage engines where manufacture prescribes a lubricant according to product ...(October 24th, 2023)
• Liqui Moly 8931 New Catalytic System Cleaner 300 Ml Cleans Combustion Chamber (33.9% similar) Special combination of additives for cleaning and removal sediments typical impurities in the intake system combustion. Item package dimension: 17.6CM l x 5.0CM catalytic-system...(November 17th, 2023)
• Liqui Moly 20002-x2 Ceratec Oil Additive 2 300ml Cans Lm20002 Set Of (38.3% similar) Prevents direct metal-to-metal contact, thus increasing the engine service life. Note: not suitable for use with wet clutches. The low-friction effect reduces fuel consumption in gasoline and diesel engines. Vera tec reduces friction and wear due to ceramic compounds that are extremely heat pressure...(November 26th, 2023)
• Liqui Moly Lm2011 5l 5w-30 Top Tec 4200 Synthetic Engine Oil Diesel Pack Of Two (31.3% similar) This full synthetic engine oil is a must-have for all car enthusiasts, offering superior lubrication and smooth operation. The oil viscosity is 5W-30, and it comes in a pack of one for your convenience. Get the best performance from your car with this 5l pack of Liqui Moly 5W-30 top tec 4200 ...(November 28th, 2023)
• Liqui Moly 20004 Lm20004 Hydraulic Lifter Additive 300ml (40.8% similar) The item must be in the manufacturers original packaging, condition, and include all packaging material. Pickup is an option...(November 29th, 2023)
• Liqui Moly 100420020049 2 Pack Top Tec 4200 5 W-30 Fully Synthetic 1 L (41% similar) 2 pack Liqui Moly top tec 4200 5 W-30 fully synthetic 1...(December 7th, 2023)
• Liqui Moly 20345 20l Top Tec 4600 Motor Oil 5w30 Q70 For 2014-19 Infiniti (43.3% similar) Reasons for return. Instead, ship the item back in its outer shipping box that came with it or purchase a new at your local post office. This includes the original box, foam, and any other packaging materials. The original packaging is not designed to withstand the rigours of shipping and may be ...(December 18th, 2023)
• Liqui Moly 20328 (44.4% similar) This item comes with the full manufacturers warranty. May not be accurate. The compatibility section is not always 100% accurate. Fast free, shipping: brand Liqui Moly, part number 20328, upc code 82, condition new. The color, quantity, size, etc...(December 26th, 2023)
• Liqui Moly 20506 6x Oil Marine 4t Sae 10w-40 Synthetic 1 Liter Bottle Single (45.5% similar) Reliable cold start. Universality: fully universal. Key features: for 4-STROKE gasoline engines, where an oil according to current product specifications is required or recommended. Unit quantity:single. Type: synthetic. Limited 1 year warranty. Outstanding corrosion protection. High engine ...(December 30th, 2023)
• Liqui Moly 20383 Motor Oil Top Tec Truck 4450 15w-40 20.000 Liter (53.6% similar) The low viscosity results in a significant reduction fuel consumption. It is compatible for the use with latest exhaust after treatment systems. Manufacturer: Liqui Moly, part number: 20383, condition: new: ideal for trucks, short and long distance buses, as well forestry, agricultural construction ...(August 2nd, 2024)
• Liqui Moly 20230 Engine Oil (48.6% similar) Tested for turbochargers and catalytic converters outstanding engine cleanliness excellent high low temperature behavior friction wear reducing optimum stability to aging excellent protection miscible with all commercially available motor oils outstanding lubrication reliability high shear stability...(August 6th, 2024)