Rock Oil Synthesis C1 5W-30 Engine Oil 5L – JLR.03.5005
Rock Oil Synthesis C1 5W-30 fully synthetic, reduced-ash engine oil for Defender Puma 2.2 TDCI and other Jaguar Land Rover vehicles requiring JLR.03.5005. The low-SAPS formulation is compatible with diesel particulate filters where this exact oil specification is required.
- Jaguar Land Rover JLR.03.5005 approved
- For Defender Puma 2.2 TDCI and other engines requiring the stated specification
- Fully synthetic reduced-ash formulation for DPF-equipped vehicles
- Supplied in a 5L container
£54.20 inc. UK VAT
Normal Stock Item
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Description
Rock Oil Synthesis C1 5W-30 is a fully synthetic, reduced-ash engine oil approved to Jaguar Land Rover JLR.03.5005. It is particularly relevant to Defender Puma 2.2 TDCI models with a diesel particulate filter, together with other Jaguar Land Rover petrol or diesel engines where this exact specification and viscosity are required. The low-SAPS formulation supports exhaust after-treatment systems while providing strong cold-start performance and thermal stability.
Why we stock it
JLR.03.5005 approval is the main buying reason for this oil. A 5W-30 viscosity grade alone does not confirm the correct engine oil, particularly on later Land Rover engines with diesel particulate filters. Rock Oil Synthesis C1 provides a clearly approved 5W-30 formulation for vehicles requiring this specific Jaguar Land Rover standard.
Specifications, approvals and pack size
- SAE viscosity: 5W-30
- Formulation: Fully synthetic, reduced ash
- Approval: Jaguar Land Rover JLR.03.5005
- Pack size: 5L
Technical data
| Property | Unit | Data |
|---|---|---|
| SAE viscosity | – | 5W-30 |
| Density @ 15°C | g/cm³ | 0.8466 |
| Kinematic viscosity @ 40°C | mm²/s | 57.20 |
| Kinematic viscosity @ 100°C | mm²/s | 10.10 |
| Viscosity index | – | 165 |
| HT/HS viscosity @ 150°C | mPa.s | 3.0 |
| Total base number | mgKOH/g | 7.8 |
| Sulphated ash | % mass | 0.5 |
| Phosphorus content | % mass | 0.05 |
| Sulphur content | % mass | 0.13 |
| Pour point | °C | -42 |
| Flash point | °C | 229 |
| NOACK volatility @ 250°C | % mass | 12.8 |
| Foaming tendency: sequences I / II / III | ml | 0-0 / 0-0 / 0-0 |
| Appearance | – | Clear and bright |
| Colour | – | Amber |
| Rock Oil product code | – | 01580 |
Check the required oil specification
Use this oil where the vehicle handbook or service information specifies JLR.03.5005 and 5W-30 engine oil. The presence of a DPF does not by itself confirm that this is the correct oil, as different Land Rover engines and model years use different manufacturer specifications.
Related engine oils
See the full 5W-30 engine oil section for other Land Rover specifications and formulations. Match the manufacturer specification as well as the viscosity before ordering.
Additional information
| Weight | 5 kg |
|---|---|
| Dimensions | 40 × 20 × 20 cm |
Brand
Brand
Rock Oil
Rock Oil is a leading producer of high-performance lubricants, with considerable recognition and respect in all areas of industry and motor sport.
Rock Oil meets or exceeds all relevant international standards. With Rock Oil you are assured that the quality and performance equals or exceeds Land Rover’s original specification.
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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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