If you are not satisfied with you order for any reason whatsoever, you may return your order to us within 45 Days for an immediate refund once we receive the items in our warehouse. Refunds will be issued through the same method in which the order was charged. Credit Card returns usually take 1-2 Business Days to post to your account balance once refund is issued. All returns will only be accepted if items are unused, thorough physical inspection will be done when shipment is received in our warehouse. All items must also be shipped back to Arrow Diesel USA in its original packaging and boxes. All shipping costs for the returns are the responsibility of the customer and will not be covered by Arrow Diesel USA.