Shell Helix Ultra is the FIRST motor oil made from natural gas. Based on paraffinic hydrocarbon content and significantly higher level of iso-paraffins compared to typical Group II and III base oils Shell Helix Ultra Professional AF 5W-30 for gasoline and diesel engines is approved against the technically challenging in-house Ford engine oil specification WSS- M2C913-C & WSS-M2C913-D.
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