STC50529 | TD5 & Land Rover OAT Coolant Concentrate 5L – Ravenol C12+
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Description
Ravenol OTC C12+ is a concentrated long-life OAT coolant for Defender TD5, Discovery 2 TD5 and other Land Rover cooling systems requiring STC50529 or STJLR.651.5003. Its monoethylene glycol formulation uses organic additive technology to protect the cooling system against corrosion and frost while helping prevent overheating, deposits and foaming. The 5L container is the main service pack, making 10L of finished coolant when mixed 50/50 with distilled water. The formulation is silicate, borate, nitrite, amine and phosphate-free.
5L Pack for Complete Coolant Changes
The larger 5L container is well suited to complete coolant changes, radiator replacement, water-pump work and other jobs where a substantial part of the cooling system has been drained. Match coolant by the required specification rather than colour alone. Where the existing coolant is contaminated, mixed or unknown, drain and flush the system before refilling with the correct mixture.
Mixing Ratios
Mix Ravenol OTC C12+ concentrate with distilled water before filling. A 50% mixture gives frost protection to approximately -37°C and produces 10L of finished coolant from this 5L container.
| Antifreeze Protection | Coolant Concentrate | Distilled Water |
|---|---|---|
| Approximately -20°C | 35% | 65% |
| Approximately -37°C | 50% | 50% |
| Approximately -50°C | 60% | 40% |
Specifications and Manufacturer Recommendations
- Coolant technology: Organic Additive Technology – OAT / C12+
- Land Rover: STC50529
- Jaguar Land Rover: STJLR.651.5003
- Jaguar: JLM209722
- DAF: 74002
- Deutz: DQC CB-14
- Mercedes-Benz: DTFR 29C110 / MB 325.3
- MAN: 324 SNF
- Ford: 1336797, 1336807, 1365305, WSS-M97B44-D from model year 1999
- Mitsubishi: 0103044, 0103045, MZ311986
- Opel / GM: 6277 M, B 040 1065
- Porsche
- Toyota: 00272-1LLAC, 08889-00115, 08889-01005, 08889-80014, 08889-80015
- Volvo: 9437650, 9437651, VCS
- Volkswagen: VW G012A8FM1, G012A8FM8, G012A8FM9, VW TL 774-F / G12+, VW/Audi TL 774-D / G12+
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 | ml0,1nHCl | >5,5 | ASTM D1120 |
| Freezing point (50 % solution) | °C | -37 | ASTM D1177 |
| Boiling point | °C | 187 | ASTM D1121 |
| Water content | Gew. % | <5 | ASTM D1123 |
Related Coolant Products
The smaller 1.5L Ravenol OTC C12+ coolant concentrate is available for top-ups and smaller cooling-system jobs. See the wider Land Rover antifreeze and coolant section for other coolant specifications and pack sizes.
Additional information
| Weight | 5 kg |
|---|---|
| Dimensions | 25 × 15 × 30 cm |
Brand
Brand
Ravenol
Ravenol is our main lubricant brand for Land Rover servicing, covering engine oils, manual and automatic gearboxes, transfer boxes, differentials, ACE and power steering, brake fluid, coolant, grease and specialist workshop fluids.
We use Ravenol because the range lets us select the lubricant around the actual engine, gearbox, axle or hydraulic system rather than relying on viscosity alone. The result is a deliberately selected Land Rover range in which every product has a defined job, from TD5 engine oil and R380 MTF-94 to specialist ZF ATF, LT230 oil, limited-slip differential oil and later transfer-box fluids.
Why Twinwoods partners with Ravenol
Ravenol is a genuine German lubricant manufacturer, developing and producing its oils, fluids and greases in Germany. The range is backed by unusually detailed technical data, which matters to us because lubricant choice should be based on much more than the viscosity printed on the bottle.
We use Ravenol in our service kits, recommend it for the Land Rovers we specialise in and use it in vehicles we work on ourselves. More importantly, the range gives us properly specialised products for different engines, gearboxes, transfer boxes, axles and hydraulic systems rather than trying to make one generic lubricant cover everything.
Ravenol oils and fluids for Land Rover
| System | Ravenol products | What matters |
|---|---|---|
| Engine oil | VMO, RUP, Turbo-C HDC, TSi, FO, FLJ, VMP, SFE and Formel Extra | Engine, viscosity, specification, emissions equipment and how the vehicle is used |
| Manual gearboxes | MTF-2 / MTF-94 for the R380 and VSG 75W-90 for the Defender Puma MT82 | Gearbox type and complete lubricant specification rather than viscosity alone |
| Automatic gearboxes | ATF 5/4 HP and ATF Dexron III H | ATF 5/4 HP is our specialist choice for the Discovery 2 ZF 4HP gearbox, while Dexron III H covers compatible general ATF duties |
| Transfer boxes | MZG 80W-90 and VSG 75W-90 for the LT230, plus DTF-1 for compatible later active transfer boxes | Transfer box design and the fluid specification required by that particular unit |
| Axles and differentials | EPX 80W-90, VSG 75W-90, RHP 75W-90, LS 75W-90 and LS 80W-90 | Standard, ATB or limited-slip differential design together with the required viscosity and friction characteristics |
| ACE and power steering | SSF and ATF Dexron III H | Hydraulic system and the correct fluid specification |
| Brakes and clutch | DOT 4 LV and DOT 4 | DOT 4 LV is our main brake and clutch fluid, with conventional DOT 4 retained where appropriate |
| Cooling systems | C12+ OAT and C12evo Si-OAT coolant concentrates | Coolant technology, engine and the fluid already in the cooling system |
| Grease | MoS2 Multi-Purpose Grease, LI-86 Bearing & Propshaft Grease and HRG 2 Hot Red Grease | MoS2 for broad workshop and driveline use, LI-86 for bearings and universal joints, and HRG 2 for high-temperature grease duties |
| Workshop fluids | Professional Engine Cleaner and Winter Screenwash Concentrate | Purpose-specific maintenance products alongside the main lubricant range |
More than the correct number on the bottle
Two oils carrying the same viscosity grade can be very different products. Base oil, additive chemistry, volatility, viscosity stability, friction characteristics and manufacturer specifications all affect how a lubricant behaves once it is hot and working inside the component.
That is particularly important with Land Rovers. An R380 gearbox, LT230 transfer box, Rover differential, ZF automatic gearbox and electronically controlled later transfer box all place different demands on their lubricant. We select the Ravenol product around the component itself rather than simply finding the nearest familiar viscosity.
Identify the component
Start with the engine, gearbox, transfer box, differential or hydraulic system being serviced.
Match the specification
Check the complete ACEA, API, GL, manufacturer or transmission-fluid requirement rather than viscosity alone.
Consider vehicle use
Standard servicing, towing, off-road use and highly tuned engines can place very different demands on the lubricant.
Check existing fluid
Coolant, hydraulic fluids and specialist transmission oils should not be mixed simply because their colour or general description appears similar.
Ravenol engine oil
Our Ravenol engine-oil range runs from traditional oils for 200TDI, 300TDI and classic petrol engines through to specialist oils for TD5, Defender Puma TDCI and later Land Rover engines. Ravenol VMO 5W-40 remains our main TD5 recommendation, RUP 5W-40 covers very highly tuned TD5 engines, Turbo-C HDC 15W-40 is our preferred oil for standard 200TDI and 300TDI engines, while FO, FLJ, VMP and SFE cover the relevant later engine and emissions-system requirements.
Related Ravenol and oil sections
| Section | Use it for |
|---|---|
| Oils, Grease & Fluids | The complete Twinwoods lubricant, coolant and service-fluid range |
| Engine Oil | Engine oils selected around Land Rover engines, viscosity and specification |
| Gear Oil | R380, MT82, LT230, differential and specialist transfer-box oils |
| ATF & Steering Fluid | Automatic transmission and power-steering fluids |
| ACE Fluid | Discovery 2 Active Cornering Enhancement hydraulic fluid |
| Antifreeze & Coolant | OAT and Si-OAT coolant for different generations of Land Rover |
| Brake Fluid | DOT 4 and DOT 4 LV brake and clutch fluids |
| Land Rover Grease | Grease for propshafts, universal joints, bearings, high-temperature use and general workshop lubrication |
Reviews (1)
1 review for STC50529 | TD5 & Land Rover OAT Coolant Concentrate 5L – Ravenol C12+
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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
Up to 60-day returns
Change-of-mind return carriage at your cost
Check fitment before ordering
Extended 60-day returns.
In addition to your statutory rights, eligible products can be returned for up to 60 days from delivery. Our extended returns policy automatically applies to individual products purchased for less than £250 including VAT. Products costing £250 or more may still be accepted for return at our discretion.
Please choose carefully before ordering.
Check part numbers, fitment and suitability before purchase. Please do not order parts simply to try them or on the assumption that they can be fitted and then returned if unsuitable.
- Changed your mind within 14 days? UK and EEA consumers have statutory cancellation rights. Tell us within 14 days of receiving your order, then return the goods within the following 14 days.
- Need longer? Eligible products can be returned under our voluntary extended returns policy. Contact us within 60 days of delivery and, once the return has been agreed, send the goods back within 14 days.
- Extended returns must be unused, unfitted, complete and suitable for resale as new. Goods must be undamaged, unmarked and uncontaminated, with all components and accessories supplied and their original product packaging where this formed part of the supplied product.
- A £10 handling charge applies to extended returns. This is charged once per return consignment, regardless of how many eligible products are returned together. It does not apply where your statutory cancellation rights apply.
- Return carriage and safe packing are your responsibility for change-of-mind returns.
- Managed UK returns: where suitable, we can provide a convenient prepaid tracked return service with straightforward drop-off, proof of handover and tracking linked to your return. The cost will be advised before it is arranged and may be deducted from your refund.
- Please do not fit or attempt to fit a part unless you intend to keep it. Fitting, attempted fitting, contamination, damage or excessive handling can substantially reduce the value of the goods. A product which has been fitted or used will not normally qualify for our voluntary extended returns policy.
- Faulty, damaged or incorrectly described? Contact us first. We will advise the appropriate return method and will normally provide a prepaid return service or cover reasonable agreed return costs.
Returning it yourself?
Please use a tracked, insured return service appropriate to the value and nature of the goods, pack and address the parcel correctly, and retain sufficient evidence to identify and trace the return. You remain responsible for the goods until they reach us.
Returns – quick FAQs
How long do I have to return an item?
Eligible products can be returned for up to 60 days from delivery under our voluntary extended returns policy.
For UK and EEA consumers, statutory change-of-mind cancellation rights also apply: tell us within 14 days of receiving your order, then return the goods within the following 14 days.
For UK and EEA consumers, statutory change-of-mind cancellation rights also apply: tell us within 14 days of receiving your order, then return the goods within the following 14 days.
Which products qualify for 60-day returns?
Our extended returns policy automatically applies to individual products purchased for less than £250 including VAT.
Products purchased for £250 or more are not automatically covered, although we may agree to accept them for return at our discretion. Eligibility is based on the price of each individual product rather than the total order value.
Products purchased for £250 or more are not automatically covered, although we may agree to accept them for return at our discretion. Eligibility is based on the price of each individual product rather than the total order value.
Is there a charge for an extended return?
Returns made under our voluntary extended returns policy are subject to a £10 handling charge per return consignment, regardless of the number of eligible products returned together.
This charge does not apply where the return is being made under your statutory cancellation rights.
This charge does not apply where the return is being made under your statutory cancellation rights.
Who pays return carriage?
For change-of-mind returns, return carriage and safe packing are your responsibility.
Where suitable, we can provide a prepaid tracked return service and advise the cost before it is arranged.
If an item is faulty, damaged or incorrectly described, contact us first. Where return is reasonably required, we will normally provide a prepaid return service or cover reasonable return costs agreed with us.
If an item is faulty, damaged or incorrectly described, contact us first. Where return is reasonably required, we will normally provide a prepaid return service or cover reasonable return costs agreed with us.
What condition must an extended return be in?
Goods returned under our extended returns policy must be unused, unfitted, complete and suitable for resale as new.
They must be undamaged, unmarked and uncontaminated, with all components and accessories supplied and their original product packaging where this formed part of the supplied product.
Can I fit a part and then return it?
Please check fitment and suitability before installation.
Please do not fit or attempt to fit a part unless you intend to keep it.
Once a part has been fitted or an attempt has been made to fit it, it may be marked, contaminated, damaged or otherwise unsuitable for resale as a new part. Fitted or used goods will not normally qualify for our voluntary extended returns policy.
Where statutory cancellation rights apply, handling beyond what is reasonably necessary to inspect the goods may result in a reduction to your refund if it has reduced their value.
Once a part has been fitted or an attempt has been made to fit it, it may be marked, contaminated, damaged or otherwise unsuitable for resale as a new part. Fitted or used goods will not normally qualify for our voluntary extended returns policy.
Where statutory cancellation rights apply, handling beyond what is reasonably necessary to inspect the goods may result in a reduction to your refund if it has reduced their value.
What if the item is faulty?
Contact us before returning it. Where a return is reasonably required for a faulty, damaged or incorrectly described item, we will normally provide a prepaid return service or cover reasonable return costs agreed with us.
Are any items excluded from 60-day returns?
Products purchased for £250 or more including VAT are not automatically covered by our extended returns policy, although we may agree a return at our discretion.
Extended returns must also meet the condition requirements above. Statutory exclusions and any separate statutory rights continue to apply as set out in our full Terms & Conditions.
Extended returns must also meet the condition requirements above. Statutory exclusions and any separate statutory rights continue to apply as set out in our full Terms & Conditions.
How do I start a return?
Contact us
Please include your order number and a brief reason for the return. Do not send anything back until you have received the appropriate return instructions.
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.
Verified owner Loui Stewart (verified owner) –