Castrol Power1 2T VS Motul 710 2T

Both competitors are fully synthetic, advanced, and high-performance engine oils designed for high stressed 2-stroke motorcycle engines. Both of them meet the latest lubricant standards for better performance and enhance engine protection. Whether the engine runs on an oil injection system or pre-mix systems, they can be used in both configurations.

Castrol is known for its fast burn and high protection formula which enhanced its throttling response that delivers a faster acceleration. It is formulated for all the modern 2-stroke motorcycle engines made by Japanese or European manufacturers. It delivers great protection and performance in a resilient environment, especially in cold weather where there is a risk of engine seizure because of freezing. Its oil changing frequency is also very low.

Motul is designed for any 2-stroke bikes, replicas, sports bikes, ATV, UTV, off-road bikes, trails, mopeds, enduro, etc. running with high RPM in resilient conditions. It is developed through Ester Technology which ensures its optimal performance and protection against wear. Its performance in high-temperature conditions is phenomenal.

Compared to Motul, Castrol performs better in cold weather, provides enhanced cleaning to the engine, and has better oil drainage intervals. But lacks behind its competitor in high-temperature conditions and when it comes to compatibility with different types of fuel and catalytic converters.

SpecificationsCastrol Power1 2TMotul 710 2T
Oil TypeFull SyntheticFull Synthetic
Engine TypeTwo-Stroke Motorcycle EngineTwo-Stroke Motorcycle Engine
API StandardTCTC
Pour Point, °C-51-39
Flash Point, °C73154
Kinematic Viscosity @ 100 °C7.6 mm2/s11 mm2/s
Kinematic Viscosity @ 40 °C43 mm2/s70 mm2/s
Viscosity Index145148
Total Base Number3.58 mg KOH/g2.4 mg KOH/g
Cost of 1 liter11.5 $13.99 $

Features of Castrol Power1 2T

  • It ensures quick acceleration from the start and on rack track situations due to fast burning and high protection formula.
  • It is made for both the pre-mix system and the oil injection system.
  • Its fuel to oil ratio in the pre-mix system is 50:1.
  • It is mixed with anti-oxidant additives which prevent oil thickening in a high-temperature environment.
  • Its engine cleaning ability and resistance to engine failure/seizure are phenomenal.

Features of Motul 710 2T

  • It provides ultimate wear protection and high performance in resilient conditions due to its Ester Technology.
  • Its synthetic base stock and ester composition have high combustion properties which ensure minimum smoke and deposit formation.
  • Like its competitor, it is also suitable for both the oil injection and premixing system.
  • Its fuel to oil ratio in the pre-mix system is from 50:1 (2%) to 25:1 (4%).
  • It mixes with fuel instantaneously.
  • It is compatible with catalytic converters.
  • It can be used in leaded or unleaded gasoline engines. And can also be used in engines that use biofuels or ethanol.
  • It also provides ultimate cleaning to the engine which ensures minimum deposit formation in the combustion chamber, spark plug, exhaust system, and piston rings.

So from a features point of view, Motul takes the lead as its Ester Technology and compatibility with any kind of fuels and catalytic converter makes it a better choice.

Viscosity Comparison

A very important parameter of engine oils to compare is their kinematic viscosity. It represents the internal friction between the molecular layers of any liquid. It tells us the flowing characteristic of engine oils, how easily a lubricant would flow depends upon its kinematic viscosity. As we can see in the table above that the kinematic viscosity of Motul is relatively higher than its competitor at high and low temperatures.

The effect of temperature change on the kinematic viscosity of a lubricant is known as the viscosity index. Its value is inversely proportional to the change in the value of kinematic viscosity. Almost both contenders seem to have an equivalent impact of temperature change on their viscosity values.

Endurance in Extreme Temperatures

Castrol is a phenomenal option in cold weather while its competitor would be a better choice in high-temperature conditions. This statement is based upon two major characteristic parameters known as the flashpoint and the pour point.

A certain temperature at which the vapors of engine oil would catch fire due to ignition is known as the flashpoint. And the flashpoint of Motul is relatively much higher than its opponent. On the other hand, the temperature at which an engine oil would lose its ability to flow because of getting frozen is known as the pour point. And the pour point of Castrol is relatively higher than its competitor.


Both of the competitors meet the API TC standard which is a certification for lubricants designed for 2-stroke engines ranging between 200 and 500 cc. The certificate is issued to a lubricant when it passes a couple of tests for dispersion, detergent performance, and anti-oxidation levels. Since both competitors meet the standard, they would be on equal grounds when it comes to the cleaning ability of the oil against the deposit, varnish, and sludge protection.

JASO FD is also a standard that certifies a lubricant’s cleaning ability but also meets its low smoke and lubricity requirements. Both of our competitors meet the JASO FD and ISO-L-EGD standards. ISO-L-EGD is a European standard but its requirements are equivalent to JASO FD.

Oil Drainage

Some harmful acids get produced in the engine due to oxidation, side reactions in the combustion chamber, and contamination. Alkaline-based additives are being added to engine oils to neutralize these hazardous acids. But the moment engine oil loses that ability, it’s time to change the oil since the acids are being produced but there is no alkaline-based element left in the engine oil to neutralize them. The neutralizing ability of engine oil depends upon its Total Base Number or TBN. As we can see in the table above that the TBN of Castrol is comparatively higher. So it would last longer in the engine and eventually would take more time for drainage. Hence in this regard, Castrol would be a preferable choice since its oil drainage interval is comparatively higher.

Price Comparison

Due to its performance in high-temperature conditions, compatibility with catalytic converters and all sorts of fuel, and low exhaust gas emission, Motul is relatively more expensive than its competitor. The cost of 1 liter of Castrol Power1 2T and Motul 710 2T is 11.5 $ and 13.99 $ respectively.


  • Both competitors are fully synthetic and made for 2-stroke motorcycle engines running in resilient conditions.
  • Both of them meet the latest lubricant standards such as API TC, JASO FD, and ISO-L-EGD.
  • Both are suitable for oil injection and pre-mix systems.
  • The fuel/oil ratio in Castrol is 50:1 and in Motul, it is from 50:1 to 25:1.
  • Castrol is a better choice in cold weather but its competitor should be preferred in high-temperature conditions.
  • Motul can be used in engines using leaded or unleaded gasoline, ethanol, and biofuel.
  • The kinematic viscosity of Motul is relatively higher at high and low temperatures.
  • Castrol has a comparatively longer oil drainage period.
  • Motul is costlier than Castrol.