Automotive · Engine Oil

MidShire Synth-X 5W-30

Fully synthetic low-SAPS engine oil for modern petrol and diesel passenger cars, including vehicles fitted with diesel particulate filters (DPF) and catalytic converters.

Product Overview

MidShire Synth-X 5W-30 is a fully synthetic passenger car motor oil (PCMO) formulated to meet the requirements of ACEA C3 and API SN. It is a low-SAPS (low Sulphated Ash, Phosphorus, Sulphur) product, designed to be compatible with diesel particulate filters, catalytic converters, and other exhaust aftertreatment devices fitted to modern petrol and diesel engines.

The fully synthetic base stock provides excellent low-temperature fluidity, good high-temperature film strength, and strong oxidation resistance to support extended drain intervals where permitted by the vehicle manufacturer.

Typical Applications

  • Modern petrol and diesel passenger cars requiring ACEA C3 specification
  • Vehicles fitted with diesel particulate filters (DPF)
  • Vehicles fitted with catalytic converters and exhaust gas recirculation (EGR)
  • Turbocharged petrol direct injection (TPGI / TGDI) engines
  • Light commercial vehicles where 5W-30 is specified
  • Fleet vehicles on extended drain programmes (where OEM approved)

Key Features & Benefits

  • Fully synthetic base — superior oxidation stability and shear stability
  • Low-SAPS formulation — helps protect DPF and aftertreatment systems
  • Excellent cold-start performance — fast oil circulation at low temperatures
  • Strong HTHS viscosity — maintains oil film under high temperature and shear
  • Fuel economy contribution — low viscosity reduces internal engine drag
  • Good soot dispersancy — keeps engine internals clean in diesel applications
  • Supports extended drain intervals where OEM guidance permits

Technical Data

Product NameMidShire Synth-X 5W-30
Product TypeFully Synthetic PCMO — Low SAPS
SAE Viscosity Grade5W-30
Kinematic Viscosity at 40°Capprox. 67 mm²/s (cSt)
Kinematic Viscosity at 100°Capprox. 11.5 mm²/s (cSt)
Viscosity Indexapprox. 170
HTHS Viscosity at 150°C≥ 3.5 mPa·s
Pour Point−40°C
Flash Point (COC)> 220°C
Sulphated Ash≤ 0.8% m/m

Specifications & Approvals

  • ACEA C3
  • API SN
  • Meets requirements of vehicles specifying MB 229.51
  • Meets requirements of vehicles specifying BMW Longlife-04
  • Meets requirements of vehicles specifying VW 504.00 / 507.00
  • Always check your vehicle handbook for the exact specification required

Available Pack Sizes

  • 1 Litre Bottle
  • 4 Litre Bottle
  • 5 Litre Bottle
  • 20 Litre Pail
  • 205 Litre Drum

Need to check the right oil specification for your fleet?

We can cross-reference vehicle makes, models, and OEM requirements to confirm the right product.

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