Traffic congestion has increased dramatically; today even a normal driver can stop and start up to 18,000 times a year. That’s annoying, but worse, it slowly damages your engine – permanently. Castrol MAGNATEC’s unique breakthrough DUALOCK molecules cling to critical engine parts and lock together to protect. Castrol MAGNATEC. Non-stop protection from every start. Application Castrol MAGNATEC 5W-30 C3 is suitable for use in automotive gasoline and diesel vehicles where the manufacturer recommends an API SN, ACEA C3 or earlier specification 5W-30 lubricant. Advantages Castrol MAGNATEC’s unique breakthrough DUALOCK molecules cling to critical engine parts and lock together to: Form a powerful force field of protection Dramatically reduce both warm-up and stop-start wear by 50% Deliver protection designed specifically for modern driving Product Performance Claims ACEA C3 API SN BMW Longlife-04 Renault RN0700 / RN0710 Meets Fiat 9.55535-S3 Warranted by Castrol to be completely suitable for use in vehicles where the following specifications apply: MB 226.5/ 229.31 Castrol MAGNATEC: Non-stop protection from every start. Castrol MAGNATECs unique breakthrough DUALOCK molecules cling to critical engine parts and lock together to reduce warm-up and stop-start wear Deliver unique protection designed specifically for modern driving Castrol Magnatec Stop-Start 5W-30 C3 is a fully synthetic engine oil designed to protect against engine wear, specifically from the stresses of stop-start driving in congested environments. Formulated using Castrol's innovative Dualock technology and the most efficient base oils, Magnatec Stop-Start 5W-30 C3 can reduce engine wear by 50% and improve fuel economy, making it the perfect engine oil choice for city drivers.