From the manufacturer
Better Fuel Economy and Improved Wear Performance
Through the use of Shell’s most advanced technology, Shell Rotella T6 5W-40 synthetic heavy duty engine oil offers enhanced fuel economy capability of 1.5%* that can save money in fuel consumption, without compromising engine protection or durability. *Compared to 15W-40 oils.
Shell Rotella T6 5W-40 full synthetic provides a significantly increased level of protection against harmful engine wear.
Improved Deposit Control and Improved Heat Resistance
The advanced multi-functional dispersant additives in combination with synthetic base oils provide an enhanced level of protection against the effects of soot, dirt and other contaminants in heavy duty diesel engines.
Shell Rotella T6 full synthetic heavy duty engine oil resists breakdown by heat to provide continuous protection throughout the service interval.
Emissions System Compatibility and Outstanding Shear Stability
Advanced low-ash formulation helps control blocking of or poisoning of exhaust after-treatment devices, helping maintain vehicle emission compliance and diesel engine fuel efficiency.
Shell Rotella T6 full synthetic heavy duty engine oil resists viscosity loss through shear and will maintain optimal pressure in your heavy duty diesel engine.
You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).
You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).
If you need to return an item, simply login to your account, view the order using the 'Complete Orders' link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.
We can ship to virtually any address in the world. Note that there are restrictions on some products, and some products cannot be shipped to international destinations.
When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.
Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.