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For questions about a charge that has been made to your credit card, please contact Amazon. Questions about how to place an order? Search Amazon Help.

Shipping Policies

  • All orders shipped from TheDieselStore.com are shipped via UPS.
  • Due to UPS regulations we cannot ship website orders to a P.O. Box.
  • Due to FAA regulations flammable liquids (fuel additive) cannot be shipped via air freight. These items must be shipped via UPS ground service.
  • Some orders may take up to 4 business days to ship, depending on current stock and demand.
  • Orders over $400 will require the signature of the recipient upon UPS delivery.

International Orders

  • Shipping costs on orders placed outside of the US lower 48 states may not have an accurate shipping charged assessed at check out. In this case the shipping cost will be calculated and we will contact the customer for confirmation of this charge.
  • We can only accept wired money transfers (bank account transfer) for orders placed outside of the US and Canada. Customers with international orders will be contacted, and a payment method will be arranged. This includes all orders where the end destination is out of the country and is being shipped via freight forwarding companys, third party export, etc.
  • We cannot ship to countries that the US government prohibits export to.
  • International orders will only be shipped to the address assigned to the credit card.

Privacy and Security

Privacy Policy

MWFI values the privacy of your personal data.


Tax Information

Sales tax is not separately calculated and collected in connection with items ordered from MWFI through the Amazon.com Site unless explicitly indicated as such in the ordering process. Items ordered from MWFI may be subject to tax in certain states, based on the state to which the order is shipped. If an item is subject to sales tax, in accordance with state tax laws, the tax is generally calculated on the total selling price of each individual item, including shipping and handling charges, gift-wrap charges and other service charges, less any applicable discounts. If tax is separately calculated and collected in connection with items ordered from MWFI through the Amazon.com Site, the tax amounts that appear during the ordering process are estimated - the actual taxes that will be charged to your credit card will be calculated at the time your order is processed and will appear in your order confirmation notification.


A-to-z Guarantee

Place your merchant order through the Amazon.com Shopping Cart and your purchase is protected by the A-to-z Safe Buying Guarantee. Amazon.com automatically transfers your payment to the merchant so you'll never need to pay a merchant directly. Our A-to-z Safe Buying Guarantee covers both the delivery of your item and its condition upon receipt...Read more

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