Petronas Syntium 1000 VS Petronas Syntium 800

Syntium 1000 and 800 are both semi-synthetic and are compatible with gasoline and diesel engines with fuel injection, multivalve, Turbocharger, and supercharger.

Syntium 1000 is made with CoolTech technology to fight against excessive engine heat. It has strong detergents to fight against the build-up of sludge. Its high-temperature oil oxidization resistance is very remarkable, allowing lower oil consumption and better fuel averages. It has generous base reserves which allow the oil to be used for long intervals.

Syntium 800 also has a CoolTech as its main technology which helps it to keep the engine within normal temperature ranges of operation. It is highly catalytic friendly since it forms less ash after burning which could harm the catalytic converter. It provides better kinematic viscosities at both the medium and high temperatures due to the presence of viscosity modifiers.

Table of Assessment

DescriptionPetronas Syntium 1000 (10W-40)Petronas Syntium 800 (10W-40)
Viscosities5W-40, 10W-40, 15W-5010W-40, 10W-30
Cost (1L)25.45$5.60$
Oil Change Periods (Km)7000-80005000
AdditivesDispersants, Anti-wear, Anti-foam, Detergents,Anti-wear, Anti-foam, Detergents, Dispersants

Kinematic Viscosities

Kinematic viscosity is the capability of the motor oil to transfer force through it. The higher the kinematic viscosity, the better will be the propagation of force through the oil. While the Viscosity index is the capacity of the oil to avoid difference in its kinematic viscosity due to the temperature shift. A higher viscosity index shows a better resistance to temperature-led kinematic viscosity changes.

Syntium 1000 has lesser kinematic viscosities at both moderate and elevated temperatures, meaning that it will perform lower. However, its viscosity index is greater due to less effect of temperature change on its kinematic viscosity.

Whereas Syntium 800 has comparatively greater kinematic viscosities at both the average and extreme temperatures which means it will work well than its counterpart. It does have a lower viscosity index, showing a superior impact of temperature deviations on the kinematic viscosity of this engine oil.

OilsKinematic Viscosities at 40° CKinematic Viscosities at 100° CViscosity Index
Petronas Syntium 100093.5914.13155
Petronas Syntium 8009714.2150

Determination of TBN effect on Oil Change Intervals

The full form of TBN is “Total Base Number” which is the measure of all the base additives present inside the oil. These bases cancel out the acids which are produced in the course of the incineration process. As they do so their quantity decreases and comes to a time when oil is deprived of all these bases. Therefore, oil with a greater base reserve is bound to be useable for a long time.

The TBN of the Syntium 1000 is higher than its counterpart which permits it to be utilized for long oil change intervals and offer reduced oil change frequency. This oil has an oil change interval of 7000 to 8000 Km.

Conversely, Syntium 800 has a lower TBN, allowing it to be employed for a short oil change interval of 5000 Km. This causes the oil change frequency of this oil to be much higher than its competitor.

Effect on the Efficiency of the Catalytic Converter

The catalytic converter is affected by the ash produced by the oil burn-off. This ash is formed due to the presence of anti-wear additives zinc and phosphorus in the oil. Hence, a greater number of these additives will produce more ash and further hinder the performance of the catalytic converter.

Syntium 1000 has a higher quantity of anti-wear additives phosphorus and zinc, therefore, it will produce a higher quantity of residue when incinerated. This ash will greatly decrease the efficiency of the catalytic converter. Thus, this oil is not appropriate to be employed with catalytic converters.

Syntium 800, on the other hand, has a lower quantity of these anti-wear additives, that’s why it is more preferred to be utilized with the catalytic converters as it will generate a lesser quantity of residue after burn up. Hence it minorly affects the efficiency of the catalytic converter.

Engine Cleaning ability Comparison

After some use sludge appears in the oil, as the dissolved oil combines with the moisture, dirt, and other pollutants to form a partial-solid fluid known as sludge. This sludge is very harmful to the engine so it can hinder or block the path of oil inside the engine which causes some serious issues. To decrease the slurry, detergents are added to the oil.

Syntium 1000 utilizes calcium as its primary detergent whose amount is very high. It also has some secondary detergents like magnesium, but their numbers are too low. This huge quantity of calcium allows this oil to excel in conditions of cleaning in comparison to its counterpart.

Syntium 800 also uses calcium as its main detergent along with very minimal quantities of other secondary detergents, but its calcium quantity is not as high as that of its competitor. This causes it to underperform, regarding cleaning.

Comparison of Fuel Economy

The fuel economy is determined by the oil consumption rate. The oil consumption is in direct relation with the oil’s ability to withstand break down at high temperatures to avoid vaporization. This defines the volatility rate of the oil. The higher the volatility, the lower will be the fuel economy. A higher volatile oil will evaporate swiftly and get to its flashpoint at a smaller temperature.

Syntium 1000 has a significantly higher flash point temperature, showing its lower volatility rate and higher resistance to extreme temperature breaking down of the molecules. This causes this oil to have a lower oil consumption rate and a higher fuel economy.

Since Syntium 800 has a lesser flash point temperature, it will vaporize comparatively faster and will have a higher volatility rate. This means that it is not very effective in resisting the high-temperature breakdown of the molecules and has a higher oil consumption rate. This all will lead to a lower fuel economy of this oil.

OilsFlash Point Temperatures (°C)
Petronas Syntium 1000232
Petronas Syntium 800200

Wear Protection Analysis

Interaction of metal inside the engine results in the production of friction, this friction produces wear. To prevent all these scenarios anti-wear additives are introduced into the equation. A respectable quantity of these anti-wear additives is included in the oil which creates a greasing film over the engine parts and reduces their direct contact with each other. In this way, the friction is reduced, and wear is avoided.

Syntium 1000 has a greater quantity of anti-wear additives exhibited inside it. A higher quantity of these additives will form a bulkier and sturdier oil film around the metallic parts. It will enhance the lubrication and reduce the friction up to a minimum.

While Syntium 800 has a comparatively lower quantity of anti-wear additives. This will decrease the wear protection ability of this oil since the oil film formed by these particles will not be strong as that of its counterpart. The oil film formed will ineffectively reduce friction and will cause some wear, thus, jeopardizing the wear protection ability of this oil.


  • Both of these are semi-synthetic that are intended for both diesel and gasoline engines.
  • Syntium 800 is more acceptable to be utilized with catalytic converters.
  • The sludge reduction ability of Syntium 1000 is much higher.
  • The Syntium 1000 offers a much better fuel economy.
  • The anti-wear additives are present largely in Syntium 1000.
  • The flowing resistance at both the medium and higher temperatures is higher of Syntium 1000 than 800.
  • The viscosity index of the Syntium 800 is higher than its counterpart.
  • TBN of Syntium 1000 is higher, allowing longer oil change intervals.
  • Syntium 800 is not expensive and is a more cost-efficacious oil.