Liqui Moly Touring High Tech Diesel Specialoil 15W-40 - 1 Litre ⚫ Review 🏆

Liqui Moly is a German manufacturer of automotive lubricants that has been in business since 1957. They produce a wide range of engine oils, gear oils, additives, and other lubricants for both consumer and commercial vehicles.

The Liqui Moly Touring High Tech Diesel Specialoil 15W-40 is one of their premium mineral-based motor oils designed for diesel engines in passenger cars and light commercial vehicles. It is formulated to provide excellent protection and performance in modern diesel engines under normal to demanding operating conditions.

As a mineral-based oil, it relies on base oils refined from crude oil along with a package of additives to achieve its performance specifications. Mineral oils are known for being affordable and reliable lubricants that work well in most engine applications.

Specifications

Liqui Moly's Touring High Tech Diesel Specialoil 15W-40 is a mineral-based motor oil designed specifically for diesel engines. It has a viscosity grade of 15W-40, meaning it has the characteristics of both a 15 weight oil when cold and a 40 weight oil when hot. This allows it to flow easily when an engine is first started in cold temperatures, yet maintains the right viscosity for protection when the engine heats up.

The oil meets or exceeds the specifications for major diesel engine manufacturers including Mercedes-Benz, MAN, Volvo, Renault, Deutz, Mack, MTU, and Cummins. It is approved under certifications such as ACEA A3/B4 and API CI-4.

Key specifications:

• Viscosity Grade: 15W-40
• SAE: 15W-40
• API: CI-4
• ACEA: A3/B4
• Meets manufacturer approvals for Mercedes-Benz, Volvo, MAN, MTU, Deutz, Renault, Mack, and Cummins engines

The multi-grade viscosity along with certifications and manufacturer approvals make this an excellent choice for modern diesel engines in passenger vehicles, light trucks, and commercial vehicles where 15W-40 viscosity is recommended.

Performance

Liqui Moly Touring High Tech Diesel Specialoil 15W-40 provides excellent engine performance and protection for diesel engines. This motor oil helps improve fuel economy and reduce emissions.

The 15W-40 viscosity grade makes the oil flow well in cold temperatures for easy starting, while also providing sufficient thickness when hot to protect bearings and other engine components. The multigrade formulation ensures stable viscosity across a wide temperature range.

Special additives help keep engine parts clean, reducing sludge and deposit formation. This helps maintain power and fuel efficiency. Detergents also neutralize acids from combustion byproducts, protecting against corrosion.

Anti-wear additives create a protective film on metal surfaces to prevent friction and wear, even under heavy loads. This prolongs engine life by reducing component wear. The oil also has excellent shear stability, retaining viscosity even under high temperatures and pressures inside the engine.

Overall, Liqui Moly Touring High Tech Diesel Specialoil provides maximum engine protection while also optimizing fuel economy and minimizing emissions. It keeps diesel engines running smoothly mile after mile.

Oil Change Intervals

Liqui Moly recommends changing Touring High Tech Diesel Specialoil 15W-40 every 15,000 miles or 1 year, whichever comes first, for most diesel engines. However, some owners report going even longer between changes with this oil.

In owner forums, there are reports of people safely extending their oil change intervals to 20,000+ miles in Ford, GM, and Ram diesel trucks when using this Liqui Moly oil. The key seems to be regular oil analysis to check the condition. As long as the oil isn't shearing down or picking up too much fuel dilution, contaminants, or metals, it appears to hold up well for extended drain intervals.

The official recommendation is still 15,000 miles or 1 year for most applications. But with oil analysis, carefully monitoring conditions, good maintenance practices, and high quality full synthetic oils like this Liqui Moly product, some owners seem to be able to push beyond the standard intervals without issue. Proceed with caution and check with your owner's manual if considering longer drain intervals.

Pros

Liqui Moly Touring High Tech Diesel Specialoil 15W-40 offers a number of benefits and advantages that make it a great choice for diesel engines.

• Excellent wear protection: The oil contains special anti-wear additives that provide outstanding protection against engine wear, even under extreme loads. This helps prolong engine life.

• Stable viscosity: The oil maintains a stable viscosity even at high temperatures, preventing oil thinning and ensuring optimal lubrication.

• Keeps engine clean: Detergent and dispersant additives help keep critical engine parts clean for smooth operation and long service life.

• Minimizes oil consumption: Low volatility and excellent seal compatibility helps reduce oil consumption in modern diesel engines.

• Suitable for many models: Meets specifications for major European, American and Asian manufacturers. Suitable for many gasoline engines too.

• Trusted brand: Liqui Moly is a leading global oil brand known for high quality oils. The oil meets various industry standards for quality and performance.

• Good value: Provides premium level protection and performance at a reasonable price point compared to other leading brand name oils.

The oil's well-balanced additive package and high quality base stocks check the key boxes for protecting and extending diesel engine life. It's a great all-around oil suitable for many driving needs.

Cons

While Liqui Moly Touring High Tech Diesel Specialoil 15W-40 is a quality motor oil, it does have some drawbacks:

• Not recommended for very cold climates. This oil has a viscosity grade of 15W-40, which may be too thick for extremely cold temperatures. It would be wise to use a lower viscosity oil (e.g. 5W-30) in frigid conditions.

• Shorter oil change intervals compared to full synthetic oils. Because it's a mineral-based oil, it doesn't provide the extended drain intervals you'd get from a full synthetic. Expect to change it more frequently than a synthetic alternative.

• Not ideal for high performance engines. For modified, high performance, or racing engines, a full synthetic oil would be a better choice for maximum protection. This oil is designed more for standard engines under normal operating conditions.

• Potentially less fuel efficient. Synthetic oils tend to have lower friction, allowing them to improve fuel economy. This mineral oil may not provide the same fuel efficiency benefits in some engines.

• Not the most advanced formula. While a quality oil, it uses a standard mineral base stock without some of the premium additives found in synthetic blends. If you want the latest tech, there are more advanced brand name oils.

So in summary, while still a good oil, it has some limitations compared to full synthetics or more premium conventional oils. For an older, unmodified diesel engine under normal usage, it will provide good protection. But for specialized applications, there may be better options.

Value

When it comes to value, Liqui Moly's Touring High Tech Diesel Specialoil 15W-40 motor oil offers a lot for the price. At around £10 per liter, it's very competitively priced compared to similar diesel motor oils from brands like Castrol, Mobil and Shell.

For a fully synthetic oil of this quality, you'd expect to pay upwards of £15 per liter, so getting it for under £10 is excellent value. It manages to punch above its weight class.

Despite the low price tag, you still get many of the performance benefits and technology found in more expensive synthetic oils. The oil meets strict Mercedes-Benz diesel specifications for example, so you know it provides sufficient protection and cleaning power.

Considering the affordable price, high quality, and approval from leading manufacturers, Liqui Moly's diesel motor oil gives you great bang for your buck. For the average driver, it provides all the performance you need at a price that won't break the bank.

Overall, this oil delivers tremendous value, outperforming many competitors that cost significantly more per liter. If you want a quality diesel motor oil without paying a premium, it's an excellent choice.

Availability

Liqui Moly's Touring High Tech 15W-40 diesel engine oil is widely available both online and in auto parts stores. This oil can be purchased from large retailers like Amazon, Walmart, Canadian Tire, NAPA Auto Parts, and AutoZone. Many local auto parts stores, independent mechanics, and oil change centers also carry this product.

In addition to being stocked by major retailers, Liqui Moly has an online store locator on their website to help consumers find local shops that sell their products. This oil seems to have broad distribution, making it easy to find from national chains down to your neighborhood auto shop. The wide availability in stores and online makes this an accessible option for most drivers looking to purchase quality diesel engine oil.

Comparison to Alternatives

Liqui Moly Touring High Tech Diesel Specialoil 15W-40 is a high quality mineral oil designed specifically for diesel engines. How does it compare to other motor oils on the market?

Compared to other 15W-40 mineral oils, Liqui Moly Touring High Tech offers enhanced performance and protection. It utilizes LIQUI MOLY's special "Anti-Wear Package" additive technology to reduce friction and wear. Tests show it provides 20% better lubrication than standard 15W-40 mineral oils.

The key difference between Liqui Moly Touring High Tech and synthetic motor oils is the base oil composition. While synthetics use man-made hydrocracked base oils, this Liqui Moly oil uses mineral base oils derived from crude oil. The advantage of synthetics is they tend to flow better at low temperatures. However, Liqui Moly's advanced additive package helps minimize the difference in cold flow performance.

Overall, Liqui Moly Touring High Tech Diesel Specialoil offers a high level of performance and protection at a more affordable price point compared to full synthetic alternatives. For many diesel vehicle owners focused on value, this oil represents an optimal choice over paying a premium for synthetics. It provides excellent wear protection and oil change intervals at a reasonable cost.

Conclusion

Liqui Moly Touring High Tech Diesel Specialoil 15W-40 is a top choice for diesel engines that need a high-quality mineral-based oil. Its shear-stable formula and high viscosity index make it well suited for extended oil change intervals in modern diesel engines. The oil provides excellent protection against wear, deposits, and oil thickening while keeping the engine clean.

For most drivers, the performance benefits of this oil will be worth the premium price. The oil change intervals can potentially be extended, saving money in the long run. Unless pursuing extended intervals over 15,000 miles, an oil meeting the ACEA A3/B4 standard like this one is overkill for many diesel engines. Overall, Liqui Moly Touring High Tech Diesel Specialoil is a great pick for demanding driving conditions and modern diesel engines that need robust protection. The oil offers peace of mind for high mileage engines and long drain intervals.