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.
Sierra offers a full line of direct replacement weight oils that are specifically blended to protect your engine in the harsh marine environment and the extreme load conditions that your engine is subjected to every time you push down on the throttle.
I've been using the Sierra 18-9552 synthetic blend oil for my car and it's been smooth sailing ever since. My engine runs quieter and I can definitely feel the difference in performance. The 25W viscosity works perfectly for my needs, plus the 4-liter jug is super convenient!
M
Ming Zhao
Decent product, but shipping was slow
The Sierra synthetic blend oil seems fine and does the job well, but I was a bit disappointed with the delivery time. It took longer than expected to arrive. Still, it’s good quality oil at a fair price, and my car hasn't complained since switching.
J
Jasmine Patel
Oil arrived damaged
I received my Sierra engine oil bottle with a dent and it leaked a bit during shipping, which was frustrating. I contacted customer service, but I had to wait a while for a response. I hope this was just a one-off issue because I’ve heard good things about this oil.
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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.
