AMSOIL Synthetic Heavy Duty Diesel & Marine Motor Oil is a premium diesel oil that provides excellent performance in all types of diesel engines where highly effective control of wear and deposits is vital. Engineered with heavy-duty dispersant/detergent additives, its Total Base Number (TBN) of 12 neutralizes acids and controls soot thickening from exhaust gas recirculation (EGR) and blow-by to protect against corrosion, cylinder bore polishing (wear), varnish and sludge deposits. AMSOIL 15W-40 Diesel Oil resists heat and breakdown better than conventional petroleum oils for long-lasting performance and protection.
AMSOIL, the leader in automotive synthetic lubrication, produced the world's first API qualified synthetic motor oil in 1972. Trust the extensive experience of AMSOIL The First in Synthetics® to do the best job protecting your engine.
Extends Drain Intervals
AMSOIL Synthetic Heavy Duty Diesel & Marine Motor Oil can extend drain intervals far beyond those recommended for conventional petroleum oils. Its unique synthetic formulation and long-drain additive chemistry deliver maximum engine protection, cleanliness and performance over extended drain intervals, reducing vehicle maintenance and waste-oil disposal costs.
Controls Soot and Wear
AMSOIL Synthetic Heavy Duty Diesel & Marine Motor Oil is heavily fortified with detergent/dispersant additives and is naturally resistant to soot. It is designed to keep soot particles suspended independently and prevent them from aggregating to form larger, wear-causing particles. Viscosity increase is minimized and soot-related wear is reduced.
Reduces Oil Consumption and Emissions
AMSOIL Synthetic Heavy Duty Diesel & Marine Motor Oil has lower volatility than conventional petroleum oils. Oil consumption and emissions are minimized due to less vapor passing into the combustion chamber. Lower volatility helps AMSOIL 15W-40 Diesel Oil retain its viscosity after high-temperature service for continued dependable protection.
Excellent Cold-Flow Properties
AMSOIL Synthetic Heavy Duty Diesel & Marine Motor Oil eases cold-weather starting (down to -44°F) and provides vital startup lubrication to help prevent engine wear. AMSOIL Synthetic Heavy Duty Diesel Oil outperforms conventional 15W-40 petroleum oils and minimizes the impact of cold-weather operation.
AMSOIL Synthetic Heavy Duty Diesel & Marine Motor Oil is engineered for use in a wide variety of light- and heavy-duty applications, including over-the-road trucks, off-road construction, marine engines, farm equipment, mining, industrial (pumps & generators) and personal automotive or commercial transportation. It is excellent for use with low- or high-sulfur diesel fuels in standard, turbocharged or supercharged engines, including diesels equipped with EGR systems.
AMSOIL Synthetic Heavy Duty Diesel & Marine Motor Oil is recommended for diesel engines, gasoline engines and other applications that require any of the following specifications:
AMSOIL Synthetic Heavy Duty Diesel & Marine Oil is compatible with conventional and synthetic motor oils. Mixing AMSOIL motor oils with other oil, however, will shorten the oil's life expectancy and reduce the performance benefits.
AMSOIL does not support extended drain intervals where oils have been mixed.
Aftermarket oil additives are not recommended for use with AMSOIL motor oils.
AMSOIL Synthetic Heavy Duty Diesel and Marine Motor Oil is recommended for extended drain intervals in unmodified, mechanically-sound vehicles or equipment as follows:
Diesel Engine Service
Three times (3X) OEM* recommendation, not to exceed 50,000 miles/600 hours or one year, whichever comes first. Drain intervals may be extended further with oil analysis.
Gasoline Engine Service
Two times (2X) OEM* recommendation, not to exceed 15,000 miles or one year, whichever comes first.
*Operating conditions and drain intervals for severe and normal service are defined by the OEM. Refer to your owner's manual.
OUR REFUND AND EXCHANGE POLICY…
eCaribbeanonline.com is guided by the Trade Policy Laws of Caricom Free Trade Agreement. While each seller's return policy may vary, eCaribbeanonline will ensure that "fair trade" is at play according to our policy guideline, stated below and will remain as the overarching regional governance policy.
As the buyer, you are required to review the Seller's Return Policy before purchasing an item for the first time from any store. Our stores will make every effort to provide the correct item and the best quality; we require that you as the buyer check all received items (for defects, colour, sizes etc) immediately upon receipt. If for any reason you are dissatisfied with any item purchased, our 24-hour support team is more than willing to assist you to ensure 100% customer satisfaction.
Should you change your mind about the product(s) you purchased via eCaribbeanonline, please be guided by the Return and Refund policy of that specific store for information on their respective policy.
All exchanges, returns and refunds must be returned to our eCaribbeanonline offices and shall be subject to the following conditions:
i.We require you to notify us via our “Problem with order” or “Return or Replace” button, on your order’s profile, within three (3) days of delivery of purchase.
ii. eCaribbeanonline members returning items purchased by walk-in, must provide one (1) form of identification, that corresponds with your receipt, upon return of an item.
iii. All returned items must meet the following requirements:
…And must be presented with the original tags/labels attached.
iv. The returned item(s) must not be swimwear, underwear, earrings, cosmetics or stock clearance items.
v. If you request a refund for errors not due to eCaribbeanonline.com, the purchase price (excluding delivery charges for online) will be refunded to you using the original payment method, once the returned item has been received and confirmed that it meets conditions i.- iv. Above. You are responsible for any costs associated with returning the item including any currency conversion costs.
vi. If you request an exchange for errors not due to eCaribbeanonline.com, an additional delivery charge (for online exchanges) will be charged to you using the original payment method or another one specified by you, once the returned item has been received and confirmed that it meets conditions i.- iv. Above. You are responsible for any costs associated with returning the item including any currency conversion costs.
vii. If you request an exchange for errors due to eCaribbeanonline.com, no additional delivery charge (for online exchanges) will be charged to you, once the returned item has been received and confirmed that it meets conditions i.- iv. Above. We will be responsible for any costs associated with altering and returning the item including any currency conversion costs.
Shipping costs can only be refunded on faulty items.
If an item is faulty, wrongly described or different from the sample shown, then eCaribbeanonline will meet its legal obligations to you, which may include refunding the purchase price and delivery charges, or providing a replacement product, provided the item is returned within one week of delivery and with proof of purchase without damage.