Save 5% Sitewide
Save 5% on your first order. Plus, check out other popular picks.
Expires Nov 29, 2026.

petroleumservicecompany.com
10 offers to explore · Updated
SAVE ON YOUR NEXT ORDER
Common Petroleum Service Company codes from the offers we've collected, shared for reference only. A code isn't guaranteed to work, so check the offer's terms at checkout.
Shop at petroleumservicecompany.com →Save 5% on your first order. Plus, check out other popular picks.
Expires Nov 29, 2026.
Save 10% on your order, with free delivery included automatically.
Save 10% on your order today at Petroleum Service Company, plus enjoy additional offers and perks.
Petroleum Service Company brings you 10% off on all purchases.
First-time customers receive $15 OFF. Explore versatile automotive lubricants picks and diesel fuel additives favorites, and don't miss other options and more.
Save 50% on your favorite items at Petroleum Service Company.
First-time customers receive 5% off. Explore versatile automotive lubricants picks and diesel fuel additives favorites, and don't miss other options and more.
No offers match this filter.
Past promotions for reference. These offers may no longer be redeemable.
cyber2025FRIDAY13JKGBSB64IOL1LOVE30FLASH25Checkout screenshots supplied by the collected source. Historical results do not guarantee current availability.
| Code | Discount | Offer | Expires |
|---|---|---|---|
| WELCOME5 | 5% OFF | Save 5% Sitewide | Nov 29, 2026 |
| CLEARFLUIDCOAT5 | UP TO 15% | Exclusive Offer on Fluid Coating Solutions | See merchant |
| SELECT10 | 10% OFF | Save 10% on PSC Select Shipping Program | See merchant |
| CYBERTEN | 10% OFF | Save 10% on Winter Products Guide Items at Petroleum Service Company | See merchant |
| SUNOCO20 | Up to 20% OFF | Save up to 20% | See merchant |
Petroleum Service Company is a family-owned distributor based in Ashley/Wilkes-Barre, Pennsylvania, and it has been trading since its founding in 1924. It started out with industrial lubricants and oils and has since become a substantial online retailer. Its range takes in manufacturing lubricants, greases, fuel additives and protective coatings, along with equipment and accessories, and it supplies commercial, automotive and industrial customers across the nation. Close supplier relationships and an emphasis on quality shape how it buys and sells, and the website is set up so buyers with varied petroleum needs can order without hassle. Lubricants and greases are used to cut friction in engines and machinery, while fuel additives are meant to improve how fuel behaves.
Customers can pay with PayPal, Google Pay or Apple Pay. Anything sent back has to reach the company within 30 days of the purchase date, unopened and in factory new condition, and a 20% restocking fee applies to returns, with a 2.85% fee when a return is processed on a credit card.
There are a few routes to savings. Subscribing to the newsletter brings regular updates on clearance sales, bulk discounts and other deals, and larger quantities of lubricants, fuels or other petroleum products often qualify for a lower price per unit. The clearance section spans lubricants and additives as well as equipment and accessories. The PSC Premium Rewards program hands out tiered gifts to shoppers who spend $1,000 to $2,999, and PSC Select Shipping provides exclusive shipping deals; either one is open to anyone who registers an account on the website. The company also keeps accounts on Facebook, Twitter, YouTube, Instagram, Pinterest and LinkedIn.
Confirm current details directly with the merchant.
Codes go into the promo code box at the Petroleum Service Company checkout; deals need no code.

Pick a code from the list above. Its details give the discount and any conditions, such as a minimum spend or an end date.
Select Show Code. A window opens with the full code, a Copy code button and a link to petroleumservicecompany.com.
Add your items at petroleumservicecompany.com, then paste the code into the promo code box in your cart or at checkout.
Make sure the discount shows in the order total before you pay. If it does not, the order may not meet one of the code's conditions.
Subscribing to the Petroleum Service Company newsletter keeps shoppers in the loop on the latest promotions and discounts. Signing up brings regular updates on clearance sales, bulk discounts and exclusive deals suited to their petroleum needs.
Yes, Petroleum Service Company runs clearance sales and discounts where shoppers can find strong deals on a wide range of petroleum products. The clearance section covers lubricants and additives as well as equipment and accessories, so it pays to check the website often for savings.
Buying in bulk is one way to save at Petroleum Service Company. Whether the order is for lubricants, fuels or other petroleum products, larger quantities often qualify for a significant discount per unit, which lets customers stock up on essentials and keep their expenses low.
On this page, 2 offers are for new customers only. A code also fails when the cart has excluded items or the promotion has ended.
SUNOCO20 gives the biggest discount on this page, up to 20% off. The biggest deal, 50% off, needs no code.
No offer on this page says whether it can be combined with others. Checkout normally takes one code per order.
About 2 a month. Over the past year 21 codes were collected, with the most, 3, in Dec 2025.
Yes, Petroleum Service Company has the PSC Premium Rewards program, with tiered gifts for spending $1,000 to $2,999, plus PSC Select Shipping for exclusive shipping deals. Shoppers join by registering an account on the company's website.
Product must be shipped back within 30 days of purchase date, unopened and in "factory new" condition.
All returns are subject to a 20% restocking fee. Processing returns using a credit card are subject to a 2.85% fee.
Petroleum Service Company accepts PayPal, Google Pay and Apple Pay.
Over the past year, 21 Petroleum Service Company codes were collected, about 2 a month. The busiest month was Dec 2025, with 3 codes. The most popular discount was 50% off, offered in Mar 2026.
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