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Penrite
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10 Tenths Race Castor is an ashless SAE 20W-40 engine oil manufactured from high quality castor vegetable oil, synthetic ester, anti-corrosion additives and an advanced anti-oxidant. This helps to reduce or eliminate traditional problems such as lacquers and deposits.
10 Tenths Race Castor has retained all of the advantages of a castor-based product, including a naturally higher and stronger film strength, very high load carrying capacity, better wetting properties and reduced power loss due to friction.
Penrite 10 Tenths Racing products are used by Factory Race Teams to provide the ultimate in performance and protection. To visit our Factory Racing Partners and Penrite Brand Ambassadors Click Here
10 Tenths Race Castor is designed for use in Ultra-high speed two stroke engines such as International Class Go Karts (Ratio 16:1), model aircraft engines and other high performance engines requiring a castor based oil.
10 Tenths Race Castor is also recommended for classic two and four stroke engines where the owner wishes to use a Castor based oil rather than mineral based oil. It is also suitable for use where monograde SAE 30 and SAE 40 Castor based products are used or recommended. This product may also be used as a premix in two stroke applications with both petrol & methanol fuels.
10 Tenths Race Castor contains corrosion inhibitors to combat potential problems with excess moisture being present when running on methanol.
10 Tenths Race Castor is suitable for use in two stroke engine premixes. It can be mixed with fuels such as unleaded and leaded petrol, E85, Avgas, Methanol and Racing Fuel. Due to a limited storage life, product should be mixed just prior to use. Please establish compatibility and stability before attempting to use in engine.
Note Do not mix Race Castor Oil with mineral oils.
| Colour | Straw Liquid |
| SAE Grade | 40 |
| Density at 15°C, kg/L | 0.958 |
| Viscosity, Kinematic, cSt at 40°C | 160 |
| Viscosity, Kinematic, cSt at 100°C | 15.25 |
| Viscosity Index | 95 |
Standard delivery within Australia is usually completed within 3–7 business days. Express shipping options are available at checkout. Full rates and tracking information will be provided in your confirmation email.
We have a 30-day return policy, which means you have 30 days after receiving your item to request a return.
To be eligible for a return, your item must be in the same condition that you received it, unworn or unused, with tags, and in its original packaging. You’ll also need the receipt or proof of purchase.
To start a return, you can contact us at info@bosca.com.au. If your return is accepted, we’ll send you a return shipping label, as well as instructions on how and where to send your package. Items sent back to us without first requesting a return will not be accepted.
You can always contact us for any return question at info@bosca.com.au.
Damages and issues
Please inspect your order upon reception and contact us immediately if the item is defective, damaged or if you receive the wrong item, so that we can evaluate the issue and make it right.
Exceptions / non-returnable items
Certain types of items cannot be returned, like perishable goods (such as food, flowers, or plants), custom products (such as special orders or personalized items), and personal care goods (such as beauty products). We also do not accept returns for hazardous materials, flammable liquids, or gases. Please get in touch if you have questions or concerns about your specific item.
Unfortunately, we cannot accept returns on sale items or gift cards.
Exchanges
The fastest way to ensure you get what you want is to return the item you have, and once the return is accepted, make a separate purchase for the new item.
Refunds
We will notify you once we’ve received and inspected your return, and let you know if the refund was approved or not. If approved, you’ll be automatically refunded on your original payment method. Please remember it can take some time for your bank or credit card company to process and post the refund too.
