Definition of maintain. transitive verb. 1 : to keep in an existing state (as of repair, efficiency, or validity) : preserve from failure or decline maintain machinery. 2 : to sustain against opposition or danger : uphold and defend maintain a position.
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Contact BP in America. 1  Please use the contact details below to email, call or write to us in the United States. We aim to deal with your inquiries as quickly as possible. 2  For comments or complaints about our service stations and retail outlets in the U.S., please contact us via phone: +1 800 333 3991 or via email: bpconsum@bp.com.