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Thomas Performance Ltd, Land Rover Parts and Accessories.


1 Litre of 5W-40 Engine Oil

Brand: Rock Oil
Product Code: RO5401L
Availability: In Stock

Price: £11.40
Ex Tax: £9.50

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1 Litres of Performance Engine Oil. Compliant with all standards including vehicles with fitted additional particulate filters. Robust Container.

Synthesis 5W-40 Auto Engine Oil

With the introduction of the latest API and ACEA specifications Rock Oil has produced the Synthesis 4 Auto engine oil range which provides the ultimate in engine lubrication.

This range of products is suitable for fuel-injected petrol engines including those fitted with exhaust gas recirculation (EGR) and Three-Way Catalysts (TWC). It is also suitable for turbocharged and intercooled direct injection diesel engines that are not equipped with Diesel Particulate Filters (DPF).


  • Outstanding thermal and shear stability
  • Exceptionally low volatility
  • Excellent control of engine deposits and blow-by contamination
  • Superb wear protection
  • Significantly reduces friction, releasing full engine power

The Synthesis 4 Auto range meets or exceeds the following specifications:

  • ACEA A3/B4
  • MB 229.5

Typical Physical Characteristics

Viscosity Grade: SAE 5W-40
Density @ 15C: 0.863
Viscosity @ 40C: 90.0 cSt
Viscosity @ 100C: 14.6 cSt
Viscosity Index: 170
Appearance: Clear Amber Liquid
Product Code: 03340

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