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The HKS Super Oil Premium API SP 10W40 is a high-quality motor oil designed to deliver optimal performance and engine protection. Formulated with advanced additives, this 4-liter bottle ensures smooth engine operation, enhanced fuel efficiency, and reliable wear protection, making it suitable for a wide range of automotive applications. Its API SP certification guarantees that the oil meets the latest industry standards for engine cleanliness, oxidation stability, and compatibility with modern engine components. This product is ideal for drivers seeking a dependable lubricant that supports engine longevity and efficient operation over time. The oil’s viscosity at cold start and operating temperature provides excellent flow and film strength, reducing engine wear during startup and high-temperature conditions. The HKS Super Oil is engineered for ease of use, compatibility with various vehicle types, and consistent performance across different driving environments. It is not approved for CARB regulations but complies with industry standards for automotive lubricants, ensuring you receive a product that meets high quality expectations. Note that this product is prohibited from air freight, but it is readily available for ground shipping, making it a reliable choice for automotive enthusiasts and professional mechanics alike. Invest in the trusted performance of HKS with this premium 10W40 motor oil to keep your vehicle running smoothly and efficiently. Suitable for both routine maintenance and high-performance applications, this oil is a valuable addition to your vehicle care routine. Maintain engine health and enjoy peace of mind with HKS’s proven formulation and quality assurance.
Features:
Order Processing
All orders are processed and shipped within 24 hours of purchase (excluding weekends and holidays).
Orders placed after 3:00 PM EST may ship the following business day.
Shipping Methods
Customers select their preferred shipping method and speed at checkout.
Shipping times are determined by the carrier and cannot be guaranteed by us.
Tracking information will be provided once your order has shipped.
Shipping Coverage
If your package arrives damaged, please notify the delivery driver immediately and contact the shipping carrier to file a claim.
You must report any missing or damaged items within 14 days of delivery.
After this time, we cannot be held responsible for lost or damaged items.
Return Window
You have 30 days from the date of delivery to request a return.
After 30 days, we are unable to accept returns, exchanges, or refund requests.
Eligibility
Items must be returned in their original condition—unused, unwashed, and with all tags and packaging intact.
Certain products may not be eligible for return (e.g., special-order items, customized products, or perishable goods).
Items that have been altered, installed, or modified cannot be returned.
Return Process
Contact our Customer Support team to request a Return Authorization (RMA) before sending items back.
Once your return is approved, you’ll receive instructions on where to send the product.
Customers are responsible for return shipping costs unless the item was defective or incorrect.
Refunds
Refunds are issued to the original payment method once the returned item has been received and inspected.
Please allow 5–10 business days for the refund to appear on your account.
In some cases, a restocking fee may apply (if applicable, this will be disclosed during your return authorization).
