Mobil 1™ FS x1 5W-50

Advanced Full Synthetic Motor Oil

Mobil 1™ is the world's leading synthetic motor oil brand delivering our ultimate performance and protection. The Mobil 1 technology keeps your engine running like new. Mobil 1™ FS x1 5W-50 is an advanced performance synthetic engine oil designed to help provide exceptional cleaning power.

Features and Potential Benefits

Mobil 1™ FS x1 5W-50 is made with a proprietary blend of high performance synthetic base stocks fortified with a precisely balanced component system providing:

  • Engine wear protection and lubrication over the full oil drain interval
  • Excellent protection for your engine by helping to prevent the buildup of harmful deposits
  • Enhanced cleaning technology for cars with higher mileage; 100 000km +
  • Improved protection against variable fuel quality*
  • Protection for your engine during start-up at low temperatures

* Performance compared in industry standard tests, which use fuels designed to promote sludge formation.


Mobil 1 FS x1 5W-50 is recommended for many types of vehicles with higher mileage; > 100 000 km.

Specifications and Approvals

Mobil 1 FS x1 5W-50 meets or exceeds the requirements of:
ACEA A3/B3, A3/B4

Mobil 1 FS x1 5W-50 has the following builder approvals:
MB-Approval 229.1
MB-Approval 229.3

According to ExxonMobil, Mobil 1 FS 0W-40 is of the following quality:


Typical Properties

Mobil 1 FS x1 5W-50
Viscosity @ 40C (ASTM D445) 101
Flash Point, ºC (ASTM D92) 239
Pour Point, ºC (ASTM D97) -45
Density @15 ºC, g/ml (ASTM D4052) 0.85

Learn about Mobil 1™

Why synthetic oil?

Track to road

Technical help desk

Reach us via our Contact Us form or call: