*** Discontinued September 2019 ***
Designed to Outperform Conventional Diesel Oils. Exceeds both 10W-30 multi-grade and SAE 30 straight-grade viscosity requirements. Provides outstanding performance in pre-2007 diesel engines in on-road applications as well as all model-year diesel engines in off-road apps. Also recommended for gasoline
engines requiring API SL or previous specifications.
Package sizes include:
1-Gallon Bottle
1-Gallon Bottles (case of 4)
30-Gallon Drums
55-Gallon Drums
AMSOIL ACD is recommended for diesel engines, gasoline engines and other applications that require any of the following worldwide specifications:
• API CI-4+/CH-4/SL, CF, CF-2
• Global DHD-1
• ACEA A3/B3, E3, E5
• JASO DH-1
• Mack EO-M, EO-N
• Detroit Diesel 93K214
• Caterpillar ECF-1a, ECF-2
• Cummins CES 20076/20077/20078
• Volvo VDS-3/VDS-2
• Mercedes Benz 228.1/228.3/229.1
• MAN 271/3275
• MTU Type 2
• Ford WSSM2C921-A
AMSOIL Synthetic 10W-30/SAE 30 Heavy Duty Diesel Oil (ACD) is formulated with premium synthetic base oils that exceed both 10W-30 multi-grade and SAE 30 straight-grade viscosity requirements for outstanding performance in modern and older diesel engines. Unlike conventional SAE 30 motor oils, AMSOIL ACD has a naturally high viscosity index and does not contain paraffin (wax). It has a
-33°F pour point and qualifies for SAE 10W, making it an all-season multigrade lubricant with a wide operating temperature range. AMSOIL ACD is formulated without viscosity index (VI) improvers. This shear-stable formulation is designed to stop viscosity loss and associated bearing and cylinder bore wear. AMSOIL Synthetic 10W-30/SAE 30 Heavy Duty Diesel Oil contains premium additives with a high 12 TBN to neutralize acids from blow-by, exhaust gas recirculation (EGR) and high-sulfur diesel fuels. It protects against damaging piston deposits, ring sticking and sludge.
AMSOIL, the leader in automotive synthetic lubrication, produced the world's first API qualified synthetic motor oil back in 1972. Trust the extensive experience of AMSOIL The First in Synthetics® to do the best job protecting your equipment.
Where these viscosity grades are specified, AMSOIL Synthetic 10W-30/SAE 30 Diesel Oil (ACD) provides outstanding performance as a straight-grade SAE 30 for
older two- and four-stroke diesels and as a multi-grade SAE 10W-30 in modern four-stroke diesels as well as gasoline engines. AMSOIL ACD is ideal for use in a wide variety of light and heavy-duty applications, including agriculture, off-road construction, trucking, mining, industrial (pumps and generators) and personal automotive or commercial transportation. It is recommended for use with low or high sulfur diesel fuels in standard, turbocharged or supercharged engines, all off-road engines and pre-2007 on-road engines.
• SAE 10W-30 performance without VI improvers
• Cost-effective replacement for conventional oils
• Excellent shear stability
• Outstanding wear protection
• Superior protection over a broad range of operating temperatures
• Extended service life with oil analysis
AMSOIL ACD is compatible with conventional and synthetic motor oils, however, mixing AMSOIL ACD with other oils will shorten the
oil life expectancy and reduce the performance benefits. AMSOIL does not support extended drain intervals where AMSOIL ACD has been mixed with another product.
Aftermarket additives are not recommended for use with AMSOIL ACD.
AMSOIL Synthetic 10W-30/SAE 30 Heavy Duty Diesel Oil (ACD) is recommended for extended drain intervals in engines that are unmodified and in good operating condition.
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.
• Severe Service - Up to 15,000 miles or one year, whichever comes first, or longer based on 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.
Note: Extended drain intervals are not recommended when using biofuels containing >10% ethanol or 5% biodiesel (B5). Follow OEM drain intervals or extend drain intervals with oil analysis.
This product is not expected to cause health concerns when used for the intended application and according to the recommendations in the Material Safety Data Sheet (MSDS).
Click here to view the MSDS Data Sheet for AMSOIL ACD.
Keep out of the reach of children. Don't pollute. Return used oil to collection centers.
| TYPICAL TECHNICAL PROPERTIES Synthetic 10W-30/SAE 30 Diesel Oil (ACD) | |
| Kinematic Viscosity @ 100°C, cSt (ASTM D445) | 10.6 |
| Kinematic Viscosity @ 40°C, cSt (ASTM D445) | 69.0 |
| Viscosity Index (ASTM D2270) | 141 |
| Cold Crank Simulator Apparent Viscosity @ -25°C, cP (ASTM D5293) | 5975 |
| Pour Point °C (°F) (ASTM D97) | -37 (-35) |
| Flash Point °C (°F) (ASTM D92) | 230 (446) |
| Fire Point °C (°F) (ASTM D92) | 250 (482) |
| Noack Volatility, % weight loss (g/100g) (ASTM D5800) | 6.4 |
| High-Temperature/High-Shear Viscosity @ 150C, 1.4x10-6s-1, cP (ASTM D5481 | 3.4 |
| Four Ball Wear Test (ASTM D4172B @ 40 kg pressure, 75°C, 1200 rpm, 1 hr), Scar, mm | 0.40 |
| Total Base Number | 12.0 |
Product Name: Heavy Duty Diesel & Marine Motor Oils
Current Rating: 4.93 out of 5 stars
Votes & Reviews: 27 vote(s) and 91 user reviews.
Reviewed by Flint: 
it's a good product but I don't like the gallon jug design. They're hard to pour.
Reviewed by Leslie:
Have used this oil in my Duramax since it finally broke in at 70,000, I now have 255,000 on it and every oil test came with 50% oil life after 10,000. I do a lot of short trips along with really long trips towing.
Reviewed by Corey:
Makes changes a snap in my duramax. The 2 1/2 gallon jug fills her to the top of the stick. Great product and easy to order too
Reviewed by Jeremy:
2004 dodge Cummins Great oil Truck runs awsome
Reviewed by Billy:
I have used amsoil in my 2003 dodge ram 3500 the oil, performs very well has always checked good with an oil analysis 222,000 miles without ant oil related problems towing horse trailers and now a 36ft 5th wheel
Reviewed by Yaremchuk:
Very good quality.
Reviewed by Kenneth:
Boatload of additive for Excellent TBN analysis between extended oil changes.
Reviewed by Brandon:
Great oil. Love it so far!!
Reviewed by Andrew:
I use this in my 98 Dodge Ram 2500HD with the 5.9L Cummins 24v engine. It's been great to the engine.
Canada
United States
Best Oil for my 7.3!
The ONLY oil i use in my 2002 F350 7.3 Powerstroke. I get 25,000 miles between oil changes!