Liqui Moly is a well reputed brand which has been in the oil industry for about 50 years. The oil company was opened in Germany where it manufactures one of the most refine forms of engine oils. Liqui Moly Special Tec is one of the company’s most in demand motor oil.
This particular motor oil also comes in two categories that is Special Tec AA and Special Tec LL.
The difference is that the AA category makes the motor oil more suitable for Asian and American gasoline engines whereas the LL category makes it more suitable for both gasoline and diesel engines.
On the other hand, Molygen is also an engine oil produced by Liqui Moly.
This motor oil is suitable for both gasoline and diesel engines and works best even under extreme engine requirements.
Molygen uses innovative technology which helps conserve value and keeps engine protected along with boosting performance. Thus, this motor too is safe and reliable enough to be used in your vehicles.
The following is a detailed comparison between Liqui Moly Special Tec and Molygen.
Table of Contents
Liqui Moly Special Tec vs Molygen
| Specs | Liqui Moly Special Tec | Molygen |
| Oil Type | Full synthetic | Full synthetic |
| Engine Type | Gasoline/Diesel(LL)/ Gasoline(AA) | Gasoline/Diesel |
| Available Viscosity grades | 0W-16, 0W-20, 5W-20, 5W-30, 5W-40 and 10W-30 | 5W-20, 5W-30, 5W-40, 5W-50, 10W-30 and 10W-40 |
| ILSAC | GF-5 | GF-5. |
| API | API SN Plus + RC | ACEA A3, ACEA B4, API SL |
| Oil Change Frequency | 10,000- 15,000 | 5, 000 |
| Additives | Anti wear agents, anti oxidants, rust and corrosion inhibitors, viscosity index improvers and detergents. | Anti-oxidants, anti wear agents, extra cleaning detergents, dispersants, rust and corrosion inhibitors and viscosity index improvers. |
Viscosity Comparison
Engine oils come in different grades or viscosities which help in determining if the oil is suitable for lower temperatures or normal temperatures.
Liqui Moly Special Tec is a multi grade motor oil which comes in 5 different grades which are 0W-16, 0W-20, 5W-20, 5W-30, 5W-40 and 10W-30.
According to the SAE standard, this motor oil is more suitable for lower temperatures. However, the 10W-30 grade or viscosity is more suitable for normal temperatures.
Here for example, in the 5W- 20 and 5W-30 viscosities, the digit 5 stands for the grade at low temperature with W indicating winters and the 20 and 30 digits indicating the grade at normal temperature. The engine oil is normally thin during start up as the engine is cold and thus it helps spread around all engine parts quickly.
The consistency of the oil thickens once the engine heats up so that too much oil is not used up.
Moreover, the viscosity index improvers further facilitate in maintain and boosting performance even under extreme temperatures. Liqui Moly Special Tec meets and exceeds the API standard and the ILSAC GF-5 standard.
On the other hand, Molygen motor oil is available in 5 different viscosities which are 5W-20, 5W-30, 5W-40, 5W-50, 10W-30 and 10W-40. According to the SAE standard, this motor oil is suitable for both lower and normal or higher temperatures.
To be more specific, the 5W-20, 5W-30 and 5W-40 viscosities are more suitable for lower temperatures and the 10W-30 and 10W-40 viscosities are more suitable for higher temperatures.
Moreover, the digits 5 and 10 indicate the grade at low temperature with W indicating winters and the 20 and 30 digits show the grade at normal temperature.
Furthermore, the viscosity index improvers provide outsanding stability and maintain performance under extreme driving temperatures.
Molygen meets and exceeds the API standard and the ILSAC GF-5 standard.
Comparing Additives
There are a couple of additives added into full synthetic motor oils that help in boosting performance and maintain the quality of the engine oil.
Liqui Moly Special Tec motor oil includes a variety of additives and uses innovative technology which helps give it optimum performance. The additives are anti wear agents, anti oxidants, rust and corrosion inhibitors, viscosity index improvers and detergents.
Molygen full synthetic motor oil is also formulated with advanced technology which also helps in making this motor oil environmentally friendly.
The additives present in this motor oil are anti-oxidants, anti wear agents, extra cleaning detergents, dispersants, rust and corrosion inhibitors and viscosity index improvers.
Oil Type Comparison
The oil type really helps in telling you about the qualities and major advantages of using that particular engine oil.
Normally, full synthetic motor oils tend to be expensive but provide higher and longer lasting performance when compared to other types of motor oils.
This is because full synthetic motor oils are purely designed and formulated in the laboratory which gives it the benefit of having advanced additives.
Luckily, Liqui moly special tec is a full synthetic motor oil which is formulated with advanced wear protection formula. This motor oil gives you the benefit of fastest start up oiling along with minimum wear or tear produced by friction between the metal surfaces.
Moreover, this motor oil keeps the engine clean from any sludge deposits from building up and thus giving it’s a longer engine life.
Fortunately, Molygen is also formulated using the full synthetic formula which makes the blend 100 % pure.
This is a high performance motor oil which is considerably reliable when it comes to protecting the engine from harmful deposits.
Furthermore, Molygen being a full synthetic motor oil is also pretty fuel efficient and performs wonderfully even under extreme engine requirements.
Thus, since both Liqui Moly Special Tec and Molygen are full synthetic motor oils, it is safe to say that they are equally reliable and boost performance.
Catalytic Converter Performance
When the engine runs for long intervals, it causes the oil to burn off into small vapors which can easily enter the car’s emission system. This process can lead to the production of by products like phosphorous which may damage the catalytic converter.
Thus, it is very important to keep these aspects in mind when buying an engine oil.
Moreover, there are some other issues too that might indicate a faulty catalytic converter such as when an engine misfires which could lead to overheating and incomplete combustion.
Liqui Moly Special Tec uses the latest HC synthetic technology along with the modern additives which help protect all engine parts even under extreme temperatures.
Moreover, the motor oil also helps control any oil molecules from evaporating under high temperatures and also keeping the oil pressure maintained during low temperature so it gives fast cold start up.
Molygen is also a full synthetic motor oil which uses innovative additives and a special molygen additive which helps promote the cleanliness of the engine oil, reduces any harmful deposits from forming up along with any frictional losses in the engine.
Furthermore, Molygen motor oil promotes low oil consumption even under extreme temperatures which means less oil is evaporated and does not enter the car’s emission system. Molygen is also environmentally friendly and reduces pollutant emissions.
Both Liqui Moly Special Tec and Molygen are full synthetic motor oil which uses special additives and advanced technology which helps boost the engine performance along with promoting and maintaining the catalytic convertor performance.
Reduction Of Sludge Built
Keeping your engine oil clean and free from harmful substances and sludge built up is really important as these issues can easily cause a reduction in performance and also reduce the life of the motor oil.
Moreover, the sludge built up can cause the oil pressure to reduce, blocking the valve and resulting in engine damage.
Sludge built up happens when oxidation takes place and the engine stays heated up for long.
This results in oil particles to combine with oxygen and break down into small molecules that eventually unite with dirt to form carbon.
Meanwhile, in the presence of gas, coolant and water, it forms a thick and sticky paste known as sludge.
Liqui Moly Special Tec uses special additives in its motor oil which keeps the engine clean and free from any harmful deposits.
The extra cleaning detergents and dispersants in this motor oil further help in stopping dirt and sludge from forming and building up in the engine.
Thus, Liqui Moly Special Tec optimizes the engine performance even under extreme high temperatures.
Molgyen full synthetic motor oil uses the special molygen additive which helps in preventing any dirt and harmful substances from building up.
The cleaning detergents in the motor oil further stop any sludge from building up on engine surfaces.
Thus, this motor oil provides outstanding engine cleanliness which helps in giving it a longer engine life.
When it comes to the reduction and prevention of any harmful deposits and sludge built up, Liqui Moly Special Tec and Molygen perform equally great and are both efficient.
Oil Burn-Off Protection
It is important to have oil burn off protection since the more the oil burns off the more the fuel is consumed. This process normally happens when the engine stays heated up and the oil molecules begin to evaporate, and thus less oil is left in the engine.
This issue would mean you shall have to replace your engine oil more frequently than normal.
Moreover, this issue leaves the engine unprotected and can produce harmful emissions which can increase harmful deposits on engine, decrease performance and have poor low temperature start.
Liqui Moly Special Tec uses antioxidants to stop any oil molecules from evaporating when the engine is heated up along with reducing any harmful emissions.
This engine oil is known to give excellent low temperature behavior which means that the oil is delivered pretty quickly across all engine parts.
Molygen is a high performance motor oil which uses pure synthetic formula that helps give it good low start up properties.
The anti oxidants in this motor oil further facilitate oxidation stability and thus reduce any oil molecules from evaporating.
Molygen performs great under boh high and low temperatures along with saving fuel and reducing any pollutant emissions.
Minimizing Engine Wear Off
Having a motor oil that is formulated with advanced technology and anti wear agents can help boost the engine performance along with limiting any wear or tear.
Liqui Moly Special Tec uses HC technology along with the latest additive technology which promotes smooth engine running along with increasing the engine life.
The detergents in the oil help keep it clean which help in maintaining and boosting engine performance.
This motor oil is known for its excellent lubrication properties. Moreover, the anti wear agents further help minimize any engine wear or tear.
These additives also help reduce any friction related wear.
On the other hand, Molygen uses advanced additives and the multi valve technology which helps the oil easily pass through all engine parts even under extreme driving conditions.
The anti wear agents in this motor oil specially reduce any engine wear and protect the engine from any friction related damage.
Additives such as the detergents help keep the engine clean and free from any sludge built up.
Engine Seals Protection
The engine seal needs to be protected so that the oil gives maximum and longer lasting performance.
The detergents in the engine oil keep the engine protected.
Liqui Moly Special Tec uses the synthetic technology along with modern additives which help in providing outstanding engine cleanliness.
The extra cleaning detergents and dispersants in this motor oil help keep the engine free from any sludge or harmful deposits from building up and damaging the engine seal. Thus, the engine seal is protected.
Molygen uses the special molygen additive and cleaning detergents which help protect the engine seal.
These additives help stop any robbing deposits and harmful substances to built up that could damage the engine seal.
Moreover, the anti wear agents also help reduce any metal to metal friction related wear which could damage the engine.
Improved Fuel Economy
When your engine is in good health and works properly, it will improve its fuel consumption.
Additives in the motor oil help reduce any sludge built up and also protect any oil burn off which significantly reduces the level of fuel consumption.
Furthermore, an improved fuel economy would mean you do not have to change your motor oil too frequently and thus cutting down on that cost.
Luckily, Liqui Moly Special Tec motor oil uses special additives which helps improve its fuel economy and thus, the fuel consumption is reduced significantly.
The detergents in this motor oil keep the engine free from any sludge issues and helps promote longer engine life. Moreover, the anti oxidants reduce any oxidation taking place and protect against any oil burn off.
Molygen is an outstanding engine oil that helps save fuel by keeping the oil clean and free from harmful substances, reducing any wear or tear and boosting performance.
The detergents provide excellent protection against sludge issues which helps improve the fuel economy.
Furthermore, special molygen additives also help reduce any oil vaporization.
Liqui Moly Special Tec and Molygen are great full synthetic motor oils which perform equally great and help improve the oils’ fuel economy.
Oil change Frequency Comparison
Having buying an engine oil, the oil change frequency is an important aspect to consider. You would want to see if the motor oil gives you a good mileage and performance before it requires to be changed.
Liqui Moly Special Tec is a pretty advanced motor oil which states to offer an oil change interval of up to 24, 000 miles. This shows it is a high mileage motor oil with premium quality that boosts performance and cuts down on your cost of changing engine oils too frequently.
Molygen motor oil has one of the best lubricating properties which gives this engine oil longer lasting qualities. This high mileage engine oil offers about 30, 000 to 50, 000 km before the oil requires to be changed.
Both Liqui Moly Special Tec and Molygen are high mileage motor oils which makes them more efficient as the oil does not have to be changed too frequently.
Conclusion
Liqui Moly Special Tec and Molygen are both engine oils of the same brand, that is, Liqui Moly. This gives them both the benefit of being well reputed and trusted as the company has been in the market for about 50 years now. Both these engine oils are reasonably priced and offer high mileage.
Moreover, the modern technology and additives present in these engine oils gives them excellent cleaning properties, better engine protection and improved fuel economy.
Thus, you may buy any motor oil from these two and be confident about it!