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Product Number: 15D60F
Castrol Magnatec Stop-Start 5W-30 C3 is a passenger car and light commercial vehicle engine oil designed for petrol and diesel vehicles that experience frequent stop-start operation, particularly those requiring a mid SAPS lubricant. It is suitable for use in automotive gasoline and diesel engines where the manufacturer recommends an ACEA C3, API SN/CF or earlier specification 5W-30 lubricant.
The oil is formulated with Castrol's 'intelligent molecules' chemistry, designed to cling to engine parts when the oil drains down between starts and form a self-healing layer that protects at each of the critical stages of stop-start driving. Castrol cites the industry OM646LA test as showing significantly less wear in stop-start operation versus comparable lubricants.
Approvals and performance levels include ACEA C3; API SN; BMW Longlife-04; MB-Approval 229.31 and 229.51; and Renault RN 0700 and RN 0710.
The 20-litre pack format is suited to single-machine top-up and small workshop service. Store sealed in the original packaging, in a clean, dry area away from extremes of temperature, to preserve product performance over its shelf life.
With viscosity index 193 and pour point -36°C, Castrol - Magnatec Stop-Start 5W-30 C3 Engine Oil - 20 Litre supports stable lubrication across the operating temperature range and cold-start conditions.
Today even a normal driver can stop and start as many as 18,000 times a year. And all that idling in traffic or waiting at junctions causes microscopic wear in your engine.
In the latest industry test, New Castrol MAGNATEC STOP-START 5W-30 C3 gives significantly less wear in stop-start operation*.
New Castrol MAGNATEC STOP-START 5W-30 C3 has intelligent molecules that cling, and form a self-healing layer so it’s always ready to protect at each of the critical stages of stop-start driving.
Castrol MAGNATEC STOP-START 5W-30 C3. Instant Protection From The Moment You Start. Every Time You Start.
*As tested in the industry OM646LA test*
Specifications, Approvals & Recommendations:PartsForMachines is a premier e-commerce platform, founded in 2019 in Warwickshire, UK, specializing in aftermarket parts and services for construction, agriculture, and industrial machinery. We offer an extensive catalog of over 500,000 products. Standard delivery: 1–3 working days within UK mainland. We are proud to be an authorised distributor, giving customers extra confidence when purchasing genuine products from us. In addition, we provide a 30-day return policy for eligible items.
| Density @ 15C, Relative | 0.8495 g/ml |
|---|---|
| Viscosity, Kinematic 100C | 12.0 mm²/s |
| Viscosity, CCS -30C (5W) | 5239 mPa.s (cP) |
| Viscosity, Kinematic 40C | 62 mm²/s |
| Viscosity Index | 193 |
| Pour Point | -36 °C |
| Flash Point, PMCC | 210 °C |
| Ash, Sulphated | 0.8 % wt |
| Engine Parts | Product Number | Product Name | Recommended Units | Product Price |
|---|
castrol-magnatec-st-st-5w-30-c3-20l.pdf
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Standard Delivery: UK Mainland Free
Delivery Estimate: 3 to 5 working days
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| Technical Specification | ||||
|---|---|---|---|---|
| PRODUCT NUMBER | PRD00004324 | PRD00004325 | PRD00004462 | |
| Density, 15°C | 0.845 | |||
| Flash Point (COC) | 238 | 239 | ||
| Kinematic Viscosity @40°C | 75 | |||
| Pour Point | -45 | -45 | -48 | |
| SAE | 5W-30 | 5W-30 | 5W-30 | |
| Volume | 20 | 20 | 20 | |
| Viscosity Index | 174 | 174 | 159 | |
| Oil Type | Full Synthetic | Full Synthetic | Full Synthetic | |
| Show More | ||||
A. Castrol Magnatec Stop-Start 5W-30 C3 is suitable for use in automotive gasoline and diesel engines where the manufacturer recommends an ACEA C3, API SN/CF or earlier specification 5W-30 lubricant.
A. Yes, Castrol Magnatec Stop-Start 5W-30 C3 holds Mercedes-Benz MB-Approval 229.31 and MB-Approval 229.51.
A. Yes, Castrol Magnatec Stop-Start 5W-30 C3 is approved to BMW Longlife-04 specification.
A. Yes, Castrol Magnatec Stop-Start 5W-30 C3 meets Renault RN 0700 and RN 0710 specifications.
A. API and ACEA are the universal lubricant performance standards every reputable oil meets. They are your baseline check — match the code your handbook specifies (e.g., API CI-4 or ACEA E7 for heavy-duty diesel) and the oil is technically suitable for your machine. Every oil on our site lists its API and ACEA classifications.
A. Castrol Magnatec Stop-Start 5W-30 C3 meets ACEA C3 and API SN.
A. Yes, ACEA C3 is the mid SAPS class for passenger cars, suited to vehicles fitted with diesel particulate filters (DPF) and modern three-way catalytic converters requiring lower phosphorus, sulphur and ash content.
A. Both are low/mid SAPS passenger car oils for stop-start vehicles. C3 meets ACEA C3 with MB-Approval 229.31/229.51, BMW Longlife-04 and Renault RN 0700/RN 0710 — suited to Mercedes-Benz, BMW and Renault applications. C2 meets ACEA C2 and PSA B71 2290 — suited to Peugeot, Citroen and Fiat applications. Always check the vehicle manufacturer's specification.
A. An OEM Specification is the lubricant requirement set by a vehicle or equipment manufacturer (e.g., MB 228.3, VW 504.00). When an oil lists the code, the oil manufacturer has developed and tested it to meet the criteria the equipment manufacturer requires. Match the code in your handbook and you have a lubricant engineered for your machine.
A. An OEM Approval means the oil has been formally tested and signed off by the equipment manufacturer and listed on their official approved-products register (e.g., MB-Approval 228.3). An Approval confirms the oil is recognised by the equipment manufacturer for service use in their machines.
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