Fewer emissions and superior lubricity all in one oil
Diesel emission standards require the best in diesel engine oil
Diesel emission standards changed in 2007, all with the goal of reducing tailpipe emissions by 95%, and sulfur content in diesel fuel was reduced by at least 97%. When these regulations changed, the effect on diesel-powered vehicles was immediate, forcing manufacturers to include equipment like diesel particulate filters and DEF fluids to meet or exceed the new standards.
Protecting post-2007 diesel vehicles requires top-level engine oils that adhere to the FA4 standards or higher. Older oils can contaminate combustion chambers, fuel injectors, EGR systems, and DPF systems and leave expensive repairs in their wake. But oils like AMSOIL diesel engine oils that meet and exceed FA4 criteria? They not only protect your engine but minimize any effects on your powertrain or emissions system for consistent, long-lasting performance.
Diesel oils will help avoid wear on cylinder liners and piston rings
How AMSOIL diesel oils work for you
Whether you drive a long-distance highway tractor, a farm truck with a 6.7 Cummins, or a Duramax diesel-powered GMC, AMSOIL has a diesel motor oil that suits your application like none other. Combined with an AMSOIL oil filter, internal engine wear from soot and power-robbing deposits from viscosity controlling properties are a thing of the past.
Using one of the three AMSOIL diesel oils will help avoid wear on cylinder liners and piston rings, clean the crankcase of sludge, provide better cold-weather starts, and effectively reduce oil consumption and improve fuel efficiency.
- AMSOIL 100% Synthetic Diesel Oil in 0W-20 and 5W-30
- AMSOIL Heavy-Duty Synthetic Diesel Oil in 10W-30, 5W-40, and 15W-40
- AMSOIL Signature Series Max-Duty Synthetic Diesel Oil in five popular viscosities
Create a Commercial Account to Start Saving
Duramax, Cummins, Caterpillar, Deutz, or Powerstroke, protect your fleet from excessive repair costs due to unnecessary wear with AMSOIL while simultaneously reaping added benefits. Set up a commercial account today to discover bulk order savings, or create a Preferred Commercial account for deeper discounts and better rewards on the products you’re purchasing today.
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Mechanics log in with our Preferred Customer membership and save up to 25% on AMSOIL posted prices.
- Add the PC membership to your order for immediate savings
Independent Service Center Owners
Service customers love AMSOIL, so add it to your shelves. Offer your customers top-quality AMSOIL products for confident, worry-free servicing and discover bulk discounts.
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Signature Series Max-Duty with 6X's wear protection
Delivers more wear protection
Third-party testing shows Signature Series Max-Duty Synthetic Diesel Oil delivers 6X more protection against wear than required by Detroit Diesel’s* standard.II
IIBased on third-party testing in the Detroit Diesel DD13 Scuffing Test for specification DFS 93K222 using 5W-30 as worst-case representation.
*All trademarked names and images are the property of their respective owners and may be registered marks in some countries. No affiliation or endorsement claim, express or implied, is made by their use.
Get your business account for commercial buyer’s
Whether you have one truck or operate a fleet of hundreds of trucks, AMSOIL is an excellent way to lower repair costs from wear and tear. Set up a commercial buyer’s account to receive fleet discounts when you order AMSOIL products.
Get started with aCommercial account for fleet lubricant solutions.
Heavy-Duty Synthetic with 4X's wear protection
Delivers more wear protection
Third-party testing shows Heavy-Duty Synthetic Diesel Oil delivers 4X more protection against wear than required by Detroit Diesel’s* standard.I
IBased on third-party testing in the Detroit Diesel DD13 Scuffing Test for specification DFS 93K222 using 10W-30 as worst-case representation. *All trademarked names and images are the property of their respective owners and may be registered marks in some countries. No affiliation or endorsement claim, express or implied, is made by their use.