Max-Duty Synthetic Diesel Oil

Vyscocity Inc provides the finest Max-Duty synthetic diesel oil for businesses and vehicle enthusiasts. Come to us for oil that will keep your engine in top shape. The top tier of AMSOIL protection and performance for diesel engines. Provides 6X more engine protection.

You Need High-Quality Engine Oil

Whether you are the proud owner of your own big rig or a business owner who oversees a fleet of heavy-duty trucks, you understand the importance of an engine that can meet high performance standards. If your engine has problems, it doesn’t matter if every other part of your vehicle functions well.

Engine troubles often begin when one of its many moving parts start to fail, which, in turn, can begin when parts undergo stress and begin to wear. The best way to ensure that everything functions as smoothly as possible is to ensure that your engine parts are properly lubricated with high-quality engine oil, such as AMSOIL’s Max-Duty Diesel Oil 15W-40.

You Need AMSOIL Max-Duty Synthetic Diesel Oil

AMSOIL creates the best synthetic oil with the needs of your vehicle in mind. As an official supplier and retailer, Vyscocity Inc provides a variety of AMSOIL products, including synthetic oils, that you can peruse and purchase online.

If you want a motor oil that will support your diesel engine throughout its lifespan, consider Max-Duty Diesel Oil 15W-40. With its low levels of sulfate, this oil has low emissions and yet can protect your engine under severe stress. It maintains high levels of vyscocity even under extreme temperatures and is able to prevent deposits, reduce corrosion of crucial components, and minimize your engine’s oil consumption.

Due to its outstanding qualities, AMSOIL’s synthetic diesel oil can provide superior protection for your diesel engine, whether you do off-roading or ship freight long distances. If you want to meet emissions requirements, improve fuel economy, preserve horsepower, and extend drain intervals, buy Max-Duty synthetic diesel oil from Vyscocity Inc today.

You Need Signature Series Max-Duty Synthetic Diesel Oil

Whether hauling freight, aggregates, crops, heavy equipment to a job site or towing your boat to the lake, you demand maximum performance from your diesel truck. But severe service quickly takes its toll, increasing heat and inviting harmful sludge formation and wear. AMSOIL synthetic lubricants have been designed to withstand the challenges unique to diesels.  This helps you get thousands of miles of trouble-free service from your truck.

  • Make the most of your Turbo Diesel Truck
  • Help Reduce Maintenance Costs
  • Extend Engine Life
  • Save Time & Money

Signature Series Max-Duty Synthetic Diesel Oil is the most advanced formula offering 6X more engine protection*.  It is compatible with all exhaust treatment devices.  It is available in 5W-30, 0W-40, 5W-40, 15W-40 and now, 10W-30

More Built-in Protection

AMSOIL synthetic diesel oils provide excellent wear protection, delivering the following benefits:

  • Extended engine life
  • Maximum horsepower
  • Improved fuel efficiency
  • Lowered oil consumption and downtime

Keeps Turbos Clean

Signature Series Max-Duty Synthetic Diesel Oil provides protection boosted to the max,delivering up to 60% better turbo cleanliness* and withstanding the extra demands you place on the turbo when pulling heavy loads or updating the tune for maximum horsepower.

*Based on specification standards of CAT C13 2nd ring top land carbon testing

Protects Against Rust

Signature Series Max-Duty Synthetic Diesel Oil provides up to 2X better rust protection.*
*Based on industry standard testing using the NMMA FC-W Rust Test


rust protection chart


AMSOIL lookup guide auto icon

Turbo Diesel Pickup Truck

AMSOIL lookup guide heavy duty truck

Heavy Truck