STC50529 – 1.5L | Td5 & Land Rover OAT Coolant Concentrate – Ravenol OTC C12+
Ravenol OTC C12+ OAT coolant concentrate for Land Rover vehicles requiring STC50529 coolant, including Defender Td5, Discovery 2 Td5 and other Land Rover models using long-life OAT coolant. This 1.5L bottle is a convenient size for top-ups, smaller cooling-system jobs and keeping the correct coolant available in the workshop or vehicle.
- For Land Rover cooling systems requiring OAT / STC50529 coolant
- Suitable for Defender Td5, Discovery 2 Td5 and later Land Rover OAT coolant systems
- 1.5L concentrate; makes approximately 3L of mixed coolant at 1:1
- Ravenol OTC C12+ organic additive technology coolant
- Use with distilled water for the finished coolant mix
£13.74 inc. UK VAT
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Description
1.5L Ravenol OAT coolant for Td5 and Land Rover top-ups
Ravenol OTC C12+ is a concentrated OAT coolant for Land Rover vehicles that specify STC50529 coolant. This 1.5L bottle is the smaller pack size, making it a good choice for topping up, hose changes, thermostat work, small coolant losses and keeping the correct coolant available rather than using the wrong coolant type in a hurry.
It is suitable for Defender Td5, Discovery 2 Td5 and other Land Rover cooling systems requiring long-life organic additive technology coolant. Use it where STC50529 coolant is specified and mix it with distilled water before filling the cooling system.
This is concentrate, not ready-mixed coolant. At the standard 50% mix, 1.5 litres of concentrate makes approximately 3 litres of mixed coolant. For full coolant changes or larger cooling-system jobs, the 5L version is usually the better pack size.
For related parts, see our Td5 engine cooling parts or browse the wider Land Rover antifreeze and coolant range.
Mixing ratios
| Antifreeze protection to approx. | Parts coolant concentrate | Parts distilled water |
|---|---|---|
| -12°C | 1 | 3 |
| -20°C | 1 | 2 |
| -37°C | 1 | 1 |
For Td5 vehicles and most Land Rover cooling-system service work, the standard 50% mix is 1 part coolant concentrate to 1 part distilled water.
Ravenol specifications and recommendation list
Ravenol OTC C12+ is a monoethylene glycol based OAT coolant concentrate. It is silicate, borate, nitrite, amine and phosphate-free, and is formulated for corrosion, frost and overheating protection in modern cooling systems, including aluminium engines.
- Land Rover reference: STC50529
- Jaguar Land Rover reference: STJLR.651.5003
- Coolant type: OAT / C12+ concentrate
- Colour: lilac
- Freezing point at 50% solution: -37°C
- Boiling point: 187°C
- pH at 20°C, 50% solution: 7.5–8.5
- Density at 20°C: 1130 kg/m³
Recommended: DAF 74002, Deutz DQC CB-14, Ford 1336797, Ford 1336807, Ford 1365305, Ford WSS-M97B44-D from Model 1999, Jaguar JLM209722, Jaguar Land Rover STJLR 651.5003, Land Rover STC50529, MAN 324 SNF, MB 325.3, Mitsubishi 0103044, Mitsubishi 0103045, Mitsubishi MZ311986, Opel GM 6277 M, Opel GM B 040 1065, Porsche, Toyota 00272-1LLAC, Toyota 08889-00115, Toyota 08889-01005, Toyota 08889-80014, Toyota 08889-80015, VOLVO 9437650, VOLVO 9437651, VOLVO VCS, VW G012A8FM1, VW G012A8FM8, VW G012A8FM9, VW TL 774-F meets G12+, VW/Audi TL 774-D meets G12+.
Ravenol OTC OAT coolant benefits
- Excellent for aluminium alloy engines
- Good reserve alkalinity
- Premium corrosion additives for rust protection across metals and metal alloys used in cooling systems, including aluminium
- Helps prevent foaming and sediment formation in the cooling system
- Compatible with elastomers used in automotive radiators
Technical data
| Property | Unit | Data | Audit |
|---|---|---|---|
| Density at 20°C | kg/m³ | 1130.0 | EN ISO 12185 |
| Colour | LILAC | VISUAL | |
| Flashpoint | °C | >110 | DIN 51758 |
| pH value at 20°C, 50 Vol % | 7.5 – 8.5 | ASTM D1287 | |
| Reserve alkalinity | ml 0.1n HCl | >5.5 | ASTM D1120 |
| Freezing point, 50% solution | °C | -37 | ASTM D1177 |
| Boiling point | °C | 187 | ASTM D1121 |
| Water content | Gew. % | <5 | ASTM D1123 |
Additional information
| Weight | 2 kg |
|---|---|
| Dimensions | 30 × 15 × 10 cm |
Brand
Brand
Ravenol
Ravenol oils and fluids for Land Rover servicing
Ravenol is a quality-led lubricant range for Land Rover engine, gearbox, transfer box, axle, steering, ACE, brake and cooling-system service work. Use this page to browse the Ravenol products we stock for Defender, Discovery, Freelander and Range Rover applications. Oil and fluid choice should be matched to the vehicle, component and required specification, not just the viscosity printed on the bottle. Check the product page for the relevant approvals, GL rating, application notes and Land Rover use before ordering.- For engine service work, see Land Rover engine oil, including VW 505.01 engine oil ideal for Td5 applications.
- For gearboxes, transfer boxes and axles, see Land Rover gear oil.
- For automatic gearboxes, power steering and related hydraulic fluids, see ATF and steering fluid.
- For brake servicing, see Land Rover brake fluid.
- For cooling-system work, see Land Rover antifreeze and coolant.
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Delivery
Twinwoods 4x4 ships Land Rover parts across the UK and around the world. We regularly send parts overseas and use trusted tracked courier services so UK and international customers can order with confidence.
Standard UK shipments are normally sent with DPD. UK orders containing oils or fluids are normally sent with DHL where required, because some carriers restrict liquid shipments.
Worldwide delivery is available through DPD and DHL Express, depending on the destination, parcel size, weight and available courier services. Add the parts you need to your basket, enter your delivery address, and the checkout will show the available delivery options and prices before payment.
Free mainland UK postage and packaging is available on eligible orders over £99, subject to our delivery terms and conditions.
Returns
14-day returns
Unopened & unused
Faulty? We cover postage
- Return within 14 days of delivery of your order.
- Items must be unused, unopened and in original packaging.
- Faulty items: we’ll cover return postage—keep your receipt.
- Refunds & Replacements are dealt with once the original item is received and inspected.
Non-returnable: non-stock/order in/special orders and genuine Land Rover parts (unless faulty).
Returns – quick FAQs
How long do I have to return an item?
14 days from receipt of your order.
Who pays return postage?
We cover it if the item is faulty—please keep your postage receipt.
What items are non-returnable?
Non-stock/special orders and genuine Land Rover parts (unless faulty).
How do I start a return?
Contact us
Please include your order number and a brief reason for the return.
Warranty
Buy with confidence: all new parts sold by Twinwoods 4x4 include at least 12 months manufacturer warranty against defects in materials and workmanship under normal use.
Some products and brands may include a longer warranty period where this is provided by the manufacturer. Where applicable, this will normally be stated on the individual product page or covered by the manufacturer’s own warranty terms.
Warranty cover applies to manufacturing defects. It does not cover misuse, incorrect fitting, competition use unless stated, contamination, modification, damage during installation, normal wear and tear, or failure caused by an unrelated vehicle fault. For certain components, proof of professional fitment may be required.
Warranty claims may require the part to be returned for inspection and/or supplier testing before the claim is accepted. Any advance replacement is discretionary.
Warranty remedies relate to the part itself, meaning repair or replacement, or refund if those are not possible. Warranty does not cover labour, removal or refitting, diagnostics, consumables, travel or other incidental costs.
This warranty is in addition to your legal rights and does not reduce those rights.
For full details, please see our Terms and Conditions.
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