We accept all major credit and debit cards, Paypal, Apple Pay, and Electronic Funds Transfer (EFT).

No, for payment security purposes, all orders must be placed online through our website.

Yes, for larger volume orders we do approve terms payments. You can apply for credit terms here.

Yes, if you provide us with your order number we can track your package.

Most shipments begin getting picked up at our warehouse between 1:00 and 2:00 PM EST. All expedited orders must be placed by 1:00 PM EST to ensure expedited delivery. Customers should always call to verify stock before processing expedited orders to ensure the product is available.

Orders received for in stock items will be processed within 24-48 hours, Monday-Friday, EXCEPT on holidays. If you have questions regarding your order, please contact our Customer Service Representatives.

Most orders will ship from our warehouse in Wilkes-Barre, PA.

Yes, the email address on the order will receive an automated email when the tracking number has been updated.

You can estimate shipping through your cart. Either navigate to the cart page directly, or by pressing the ADD TO CART button on the product page, then selecting the blue VIEW CART / ESTIMATE SHIPPING button. Once in your cart, select either the blue estimate shipping button at the top of the page, or the blue link under your subtotal. Enter your information and select your shipping option, with the pricing next to it.

Unfortunately, no. Our shipping and receiving department maintains strict scheduling with our approved carriers to ensure the best on-time delivery performance for our customers.

While most products we show as available to order on our site are in stock, there are situations where inventory can run out. In those situations, customers will be notified by email. Additionally, we guarantee your product price when the product is replenished.

PSC Select Shipping is our annual shipping program. Just pay an annual fee of ONLY $299, and we'll cover your shipping charges for an ENTIRE YEAR. To learn more or see if you qualify, click here, or to subscribe now, click here.

Each Power Service product has its own treatment ratio for proper performance. Select the product you are looking for to view its sepcific ratio:

ISO VG stands for "International Standards Organization Viscosity Grade" and is reported in numbers ranging from 2 all the way up to 1500. Learn more about ISO VG here.

Oil does not have an exact shelf life. However, ExxonMobil states, "In general, the recommended shelf life for oils and greases is typically five years when stored properly in the original sealed containers." Learn more about shelf life and storage here.

We cannot supply any Certificate of Conformance (COC). We can, however, supply a Certificate of Analysis (COA) when SKU#5016 is added to the order.

Yes, if you are in the area you may select the "Local Pickup" shipping option at checkout. You will be contacted either by phone or email once your order is ready for pickup, THEN you may come to pickup your order. Hours for pickup are Monday-Friday, 9am-4pm, EXCEPT on holidays.

BEFORE making your purchase, you must create an online account using the email you wish to place orders with. After creating your account, then send yout tax form to sales@petroleumservicecompany.com and we will update you within minutes once it is ready. AFTER you receive confirmation, you can place your order.

All orders can be canceled by the customer up to the day the order is shipped with a full reimbursement, so shop with confidence!