Welcome Offer : Use Code WELCOME5 for 5% OFF your first order!
Free Shipping Across USA
Welcome Offer : Use Code WELCOME5 for 5% OFF your first order!
Free Shipping Across USA
Welcome Offer : Use Code WELCOME5 for 5% OFF your first order!
Free Shipping Across USA
Welcome Offer : Use Code WELCOME5 for 5% OFF your first order!
Free Shipping Across USA
Welcome Offer : Use Code WELCOME5 for 5% OFF your first order!
Free Shipping Across USA
Welcome Offer : Use Code WELCOME5 for 5% OFF your first order!
Free Shipping Across USA
Welcome Offer : Use Code WELCOME5 for 5% OFF your first order!
Free Shipping Across USA
Welcome Offer : Use Code WELCOME5 for 5% OFF your first order!
Free Shipping Across USA
Welcome Offer : Use Code WELCOME5 for 5% OFF your first order!
Free Shipping Across USA
Welcome Offer : Use Code WELCOME5 for 5% OFF your first order!
Free Shipping Across USA
- No EU import duties. - Ships within 3-5 business days. (USA) - Ships with 8-12 business days. (International)
⚠️ 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.
Schaeffer's SynShield Durability Advantage 15w40 Oil is a premium advanced performance, synthetic plus, heavy-duty diesel engine oil formulated to provide maximum protection against wear, oxidation, deposit formation, soot contamination and aeration. SynShield Durability Advantage 15w40 provides excellent equipment durability and longevity even during harsh, extreme duty operating conditions. Using Schaeffer’s proprietary friction modifiers, Micron Moly and Penetro, SynShield Durability Advantage 15w40 creates a slippery, tenacious shield that prevents metal-to-metal contact. This added layer of durability protection significantly reduces wear on bearings, rings, pistons, cylinders and valve trains. SynShield Durability Advantage 15w40 Engine Oil is suitable for use in 2007 and 2010 emission complaint engines that utilize heavy exhaust gas recirculation (EGR) and exhaust after-treatment devices such as diesel particulate filters (DPFs) with or without diesel oxidation catalysts (DOCs) and selective catalytic reduction (SCR). Schaeffer's 15w40 diesel oil meets and exceeds API CK-4 specifications.
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.
Frequently Asked Questions
Q: What are the key benefits of using Schaeffer's SynShield Durability Advantage 15W-40 Diesel Engine Oil?A: Schaeffer's SynShield 15W-40 Diesel Engine Oil provides maximum protection against wear, oxidation, and deposit formation. It enhances equipment durability and longevity, especially in extreme operating conditions, and features proprietary friction modifiers that reduce metal-to-metal contact, significantly lowering wear on critical engine components.
Q: Is this engine oil suitable for my diesel engine that uses EGR and DPF systems?A: Yes, Schaeffer’s SynShield Durability Advantage 15W-40 is designed for use in diesel engines equipped with heavy exhaust gas recirculation (EGR) and diesel particulate filters (DPFs), meeting the requirements for 2007 and 2010 emission-compliant engines.
Q: How does this oil perform under extreme conditions?A: This engine oil is formulated for excellent performance under severe operating conditions. It offers strong oxidation and viscosity control, ensuring minimal oil consumption, and maintains its protective properties throughout the oil’s life, making it ideal for demanding applications.
Q: What makes Schaeffer's oil different from other diesel engine oils?A: Schaeffer's SynShield oil stands out due to its advanced synthetic plus formulation, which includes proprietary friction modifiers like Micron Moly and Penetro. This unique blend creates a durable shield that significantly reduces wear and enhances the overall performance of diesel engines compared to conventional oils.
Q: How often should I change the oil when using Schaeffer's 15W-40 Diesel Engine Oil?A: Oil change intervals can vary based on operating conditions, but typically for heavy-duty applications, it’s recommended to follow the vehicle manufacturer's guidelines or change the oil every 5,000 to 7,500 miles, ensuring optimal performance and protection.
Recently viewed
<div class="dynamic-checkout__content" id="dynamic-checkout-cart" data-shopify="dynamic-checkout-cart"> <shopify-accelerated-checkout-cart wallet-configs="[{"name":"shop_pay","wallet_params":{"shopId":69204410420,"merchantName":"Carkart","personalized":true}},{"name":"amazon_pay","wallet_params":{"checkoutLanguage":"en_US","ledgerCurrency":"USD","placement":"Cart","sandbox":false,"merchantId":"A1ONOTYM25CI4M","productType":"PayAndShip","design":"C0002"}},{"name":"paypal","wallet_params":{"shopId":69204410420,"countryCode":"US","merchantName":"Carkart","phoneRequired":true,"companyRequired":false,"shippingType":"shipping","shopifyPaymentsEnabled":true,"hasManagedSellingPlanState":null,"requiresBillingAgreement":false,"merchantId":"KM9YTJJPBC5C2","sdkUrl":"https://www.paypal.com/sdk/js?components=buttons\u0026commit=false\u0026currency=USD\u0026locale=en_US\u0026client-id=AfUEYT7nO4BwZQERn9Vym5TbHAG08ptiKa9gm8OARBYgoqiAJIjllRjeIMI4g294KAH1JdTnkzubt1fr\u0026merchant-id=KM9YTJJPBC5C2\u0026intent=authorize"}}]" access-token="20810d98afa2dc52788bfff7f8a52a25" buyer-country="US" buyer-locale="en" buyer-currency="USD" shop-id="69204410420" cart-id="181d5cee53011e2ab97c122c22fb4af3" enabled-flags="["2d75a54c"]" > <div class="wallet-button-wrapper"> <ul class='wallet-cart-grid wallet-cart-grid--skeleton' role="list" data-shopify-buttoncontainer="true"> <li data-testid='grid-cell' class='wallet-cart-button-container'><div class='wallet-cart-button wallet-cart-button__skeleton' role='button' disabled aria-hidden='true'> </div></li><li data-testid='grid-cell' class='wallet-cart-button-container'><div class='wallet-cart-button wallet-cart-button__skeleton' role='button' disabled aria-hidden='true'> </div></li><li data-testid='grid-cell' class='wallet-cart-button-container'><div class='wallet-cart-button wallet-cart-button__skeleton' role='button' disabled aria-hidden='true'> </div></li> </ul> </div> </shopify-accelerated-checkout-cart> <small id="shopify-buyer-consent" class="hidden" aria-hidden="true"> One or more of the items in your cart is a recurring or deferred purchase. By continuing, I agree to the <span id="shopify-subscription-policy-button">cancellation policy</span> and authorize you to charge my payment method at the prices, frequency and dates listed on this page until my order is fulfilled or I cancel, if permitted. </small> </div>
Cookie Policy
This website uses cookies to ensure you get the best experience on our website.
Read Privacy