RAVENOL Outboard Castor 2T

RAVENOL Outboard Castor 2T
Size: 20 x 1 litreSize: 4 x 4 litresSize: 20 litreSize: 208 litres
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RAVENOL-Direct Price:  Call for Best Price (Inc. 20% VAT)(£0.00 Exc. VAT)



Reference:  1159100-001-01-999

RAVENOL Outboard Castor 2T is a special two-stroke oil based on tried and tested castor oil plant technology, refined with ester synthetic additives. This chemical composition guarantees excellent lubrication and shear stability at all load levels while still providing a great deal of protection against corrosion.

RAVENOL Outboard Castor 2T is for use in motorboat outboard engines in motor racing. Very high temperatures are generated at revolutions of up to 14,500 rpm as well as extreme pressure on bearings and pistons and reduced oil supply in overrun mode. In overrun mode, it is almost impossible to maintain a film of lubrication to ensure hydrodynamic lubrication. RAVENOL Outboard Castor 2T has been specially developed for such extreme conditions.

RAVENOL Outboard Castor 2T contains >75% castor oil.

In comparison with its competitors, RAVENOL Outboard Castor 2T delivers better residual lubrication of the bearings at the same mixing ratios. This provides better protection to the crankshaft and all other bearings under extreme loads.

Combustion residues are considerably less than with other oils.

With RAVENOL Outboard Castor 2T, the mixing ratios can be adapted for the respective temperature conditions.

RAVENOL Outboard Castor 2T can be used in engines from 54 HP (125 cc) to 240 HP (700 cc).



RAVENOL Outboard Castor 2T offers:

  • Reduced deposits due to clean combustion
  • Highest shear stability under the toughest conditions
  • Protection of the pistons through excellent lubrication
  • No varnish or sticking of the piston rings
  • Minimal wear
  • Increased load capacity and service life of the motor
  • Excellent corrosion protection

Application Notes

RAVENOL Outboard Castor 2T must be mixed with methanol.

Recommended mixing ratios: 1:20 to 1:30 with methanol.

At cold temperatures and in running-in mode, we recommend a mix of 1 litre RAVENOL Outboard Castor 2T to 20 litres of methanol.

With engines which have already been run in, it is recommended to use RAVENOL Outboard Castor 2T as a mixture with a ratio of up to 30 litres of methanol to 1 litre at low oxygenation (generally at high outdoor temperatures or high altitudes).

RAVENOL Outboard Castor 2T cannot be blended with mineral and synthetic two-stroke oils.

Mix thoroughly, especially after extended standing time (approx. 1 week)

Always store RAVENOL Outboard Castor 2T in a frost-free place!


Property Unit Data Audit
Density at 20°C kg/m³ 951,0


ISO 12185

Colour   gelbbraun visual
Viscosity at 100°C mm²/s 19,0



Viscosity at 40°C mm²/s 250,0



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Note that as a result of restrictions in force regarding the coronavirus and resulting staff shortages we can no longer guarantee a next day delivery service. We are currently shipping out Mondays, Wednesday and Thursdays and orders received before 11.00am on those days will normally be sent straight out. Due to the increased documentation created by BREXIT we are currently unable to ship out orders to Mainland Europe, Northern Ireland or the Republic of Ireland.

Delivery Charges to Mainland UK ex. Highlands:

For deliveries within Mainland UK we have an Express delivery (1-2 working days) for £6.90 per 20kg/20Litres (including packaging and VAT), based on a single delivery address per order. Orders up to 1.9kg (2 Litres) will be sent 1st Class Post Signed For, over this weight with DHL "Next Day".
We are also now able to offer an Economy delivery (4-5 working days - 2nd Class Post Signed For) for £4.20 on lighter orders up to 1.9 kg (2 litres). Please be aware this does not include aerosols, such as spray cans, or hazardous products, such as additives as the Post do not accept these. To select Economy or Express shipping, please use the dropdown in the Shopping Basket. 
Please be aware, Mainland UK Express delivery does not include the Highlands and Islands of Scotland (as defined by DHL), Northern Ireland, Isle of Man and Isles of Scilly - in case of uncertainty please just type your postcode into the box provided in the Shopping Basket.

Highlands & Islands of Scotland:
For small orders up to 1.9 kg (2 Litres) we are now able to offer Economy delivery (5-7 working days) for £4.20. Please be aware this does not include aerosols, such as spray cans, or hazardous products, such as additives. We also offer an Express 2-3 working day service to most areas for orders received before 10 a.m. Monday - Friday. Please choose the option "Scottish Highlands - DHL" in the Shopping Basket and the subsidised carriage charge of £15.45 per 20kg/20Litres will be added to your order.

Isle of Man, Isle of White:

For customers in the Isle of Man and Isle of White, we are now able to offer Economy delivery (5-7 working days) for £4.20 on small orders up to 1.9 kg (2 Litres). Please be aware this does not include aerosols, such as spray cans, or hazardous products, such as additives. For larger orders we offer an Express 2-3 working day service for most areas on orders. Please select "Isle of Man" or "Isle of White" in the Shopping Basket and the carriage charge of £15.45 per 20kg/20Litres will be automatically be added.

Please note we cannot ship to the Channel Islands due to the customs requirements. 


When using DHL Express Service, if you include your mobile phone number when checking out you will automatically receive an SMS from DHL Parcels UK confirming that the goods have been collected from our warehouse and informing you of the expected delivery date. All deliveries sent with DHL are supplied on a signature required service. If you have asked for the parcel to left in a safe place, we will convey this instruction to the courier but cannot guarantee this will be done as the service is a POD service and items left without signature are at the discretion of the driver. Note it is not possible to give specific instructions on items sent per post. 

If the customer requests delivery to be left in a 'safe place' we cannot be held responsible for loss. 

Carriage charges are subsidised and do not even cover our own net costs - we do not make a profit on carriage!  If you have any queries regarding our carriage charges or delivery to an address, please contact us. Please be aware weights shown on products are approximate and shown only as a guide to the total weight of your order