Maximize the performance and longevity of your diesel engine with Mercury 15W-40 Diesel Oil Gallon. This high-quality oil is specially formulated to provide superior lubrication and protection for your diesel engine, ensuring smooth operation and reliable performance.

Key Features:

• Precision-formulated for diesel engines
• Exceptional lubrication to reduce engine wear
• Enhances engine efficiency and longevity
• Ideal viscosity for diesel applications
• Convenient gallon-sized container for easy use

Invest in the health of your diesel engine with Mercury 15W-40 Diesel Oil Gallon. Enjoy peace of mind on the road or on the water with a well-lubricated and dependable engine. Upgrade your oil today for a smoother and more reliable ride.

Shipping:

• Orders are processed and shipped out within 24-48 hours. (No order will be fulfilled on Sundays or Mondays)

• FREE local pickup is available in Woodbridge, Virginia (Choose option at checkout.)

Returns: 

• We have a 30-day return policy, which means you have 30 days after receiving your item to request a return.

• To be eligible for a return, your item must be in the same condition that you received it, unworn or unused, with tags, and in its original packaging. You’ll also need the receipt or proof of purchase.

• To start a return, you can contact us at hello@boatandrvparts.com. Please note that returns will need to be sent to the following address: 13270 Minnieville Road, Woodbridge Virginia 22192, United States

• If your return is accepted, we’ll send you instructions on how and where to send your package. Items sent back to us without first requesting a return will not be accepted.

• You can always contact us for any return questions at hello@boatandrvparts.com.

Damages and issues

• Please inspect your order upon reception and contact us immediately if the item is defective, damaged or if you receive the wrong item, so that we can evaluate the issue and make it right.

Exceptions / non-returnable items

• Certain types of items cannot be returned, Such as custom products (such as special orders or personalized items). We also do not accept returns for hazardous materials, flammable liquids, or gases. Please get in touch if you have questions or concerns about your specific item.

• Unfortunately, we cannot accept returns on sale items or gift cards.

Exchanges

• The fastest way to ensure you get what you want is to return the item you have, and once the return is accepted, make a separate purchase for the new item.

Refunds

• We will notify you once we’ve received and inspected your return, and let you know if the refund was approved or not. If approved, you’ll be credited and notified with store credit within 10 business days.

• If more than 15 business days have passed since we’ve approved your return, please contact us at hello@boatandrvparts.com.