Welcome Offer : Use Code WELCOME5 for 5% OFF!
Free Shipping on Most USA Orders
Welcome Offer : Use Code WELCOME5 for 5% OFF!
Free Shipping on Most USA Orders
Welcome Offer : Use Code WELCOME5 for 5% OFF!
Free Shipping on Most USA Orders
Welcome Offer : Use Code WELCOME5 for 5% OFF!
Free Shipping on Most USA Orders
Welcome Offer : Use Code WELCOME5 for 5% OFF!
Free Shipping on Most USA Orders
Welcome Offer : Use Code WELCOME5 for 5% OFF!
Free Shipping on Most USA Orders
Welcome Offer : Use Code WELCOME5 for 5% OFF!
Free Shipping on Most USA Orders
Welcome Offer : Use Code WELCOME5 for 5% OFF!
Free Shipping on Most USA Orders
Welcome Offer : Use Code WELCOME5 for 5% OFF!
Free Shipping on Most USA Orders
Welcome Offer : Use Code WELCOME5 for 5% OFF!
Free Shipping on Most USA Orders
⚠️ California Proposition 65 Warning : Some products sold on this website may expose you to chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm.
For more information, visit www.P65Warnings.ca.gov.
BlueDevil Oil Stop Leak seals engine oil leaks permanently. It is non-clogging and will not harm your engine. BlueDevil is safe and easy to use and is compatible in gasoline or diesel engines. Our stop leak additive solution is guaranteed to keep your leak sealed even after miles of driving or your money back. BlueDevil Oil Stop Leak is an oil leak sealer that will stop your leak permanently.
I had high hopes for this product, but unfortunately, the Blue Devil Oil Stop Leak didn’t work for me. I followed the instructions but my engine still leaks oil after using the 8-ounce bottle. Maybe it works for small leaks, but mine seems to be too big. A bit disappointed!
C
Carlos Mendoza
Works like a charm!
I used the Blue Devil Oil Stop Leak in my old car, and it really worked wonders. I had a small oil leak that I thought would be costly to fix, but after adding this 8-ounce bottle, the leak has completely stopped! It was super easy to use—just pour it in and drive!
J
Jessica Tran
Minor leak stopped, but not perfect
The Blue Devil Oil Stop Leak did help with a minor oil leak in my truck, but I had to apply it twice before I noticed a real difference. I liked that it came in an 8-ounce bottle, which was just enough for my needs. Just wish it worked faster!
Free Shipping
Quality Support
Return & Refund
Gift Voucher
FAQs
Have a question ? We are here to help.
Is the shipping free?
Yes, we offer free standard shipping on all orders within the United States.
When will I receive my item?
Domestic orders typically arrive within 3-5 business days. Delivery times are estimated and may vary depending on your location, weather conditions, or other unforeseen factors.
Can I change or return my item?
We hope you love your purchase, but if you need to make a change or return your item, we’ve got you covered! You can initiate a return or exchange within 30 days of receiving your order. Please ensure the product is in its original condition and packaging. For more information on our return policy, please visit our Returns & Exchanges page.
