About-us

Arch GT1

5W-40

SN

Fully Synthetic

Arch GT1 SN 5W-40 is an SAE 5W-40 fully synthetic petrol engine oil developed for modern gasoline engines with API SN performance. The formulation is a premium fully synthetic lubricant designed to deliver exceptional performance for high-powered engines. It offers excellent oil film strength, superior engine cleanliness, robust wear protection, and long-lasting durability. Specially formulated for the latest generation of gasoline and diesel engines—naturally aspirated or turbocharged, and direct or indirect injection—it meets the ACEA C3 specification. ARCH GT1 is fully compliant with EURO VI emission standards, ensuring optimal engine performance and environmental compatibility.

Available Grades

Applications

Arch GT1 SN 5W-40 is recommended for high-performance engines fitted with GPF (gasoline particulate filter) and SCR (Selective Catalyst Reduction), requiring an ACEA C3 engine oil. It is not backward compatible with vehicle engines requiring an A40, C30 or C20 specifications lubricant.

Benefits

Arch GT1 SN 5W-40 helps support reliable SAE 5W-40 petrol engine performance with these benefits:

  • Active detergent system helps to prevent build-up of deposits and sludge.
  • Excellent thermal oxidation stability helps to reduce oil aging..
  • Provides outstanding wear protection.
  • Excellent cold flow properties helps to provide protection at start up.
  • Enhanced frictional properties provide fuel economy improvement.

Related Products