If you are dissatisfied with your order for any reason, you can return your items for a prompt refund or exchange. Refunds for items returned within thirty days of the purchase date will be credited in the same form as the original payment type. If more than thirty days has passed since the purchase date, please contact us to resolve the issue. The original shipping and handling charges are not refundable unless the product is damaged.

AR9100 Friction Modifier Power Stroke fix return policy: If you purchase AR9100 Friction Modifier (16oz) to eliminate your Power Stroke 6.0L or 7.3L stiction issue and it is not successful, please contact us within 60 days of your order and we will be happy to refund your purchase or send you another bottle.