Castrol MAGNATEC Stop-Start 5W-30 C3 5L Full Details: 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. The DUALOCK molecules contained in Castrol's MAGNATEC oils cling to critical engine parts and form a powerful protective layer that is effective from engine start up. Up to 75% of potential engine wear risk comes in the warm-up stage, so having non-stop protection that's effective immediately is one of the .
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