Skip to Main Content
Close Icon

Main Menu

Begin typing to search, use arrow keys to navigate, Enter to select.
Your order may take longer than normal to arrive, and some products may be unavailable. We are working hard to overcome supply-chain issues and freight-carrier delays. Learn more.
Roll over image to zoom in

Series 3000 5W-30 Synthetic Heavy Duty Diesel Oil

Product code : HDDQT-EA

Available While Supplies Last
AMSOIL Series 3000 5W-30 Synthetic Diesel Oil is discontinued and available while supplies last. For a serious upgrade, try Signature Series Max-Duty 5W-30.

Recommended for applications specifying API CI-4+ and prior specifications
Extends drain intervals and maximizes fuel economy
Controls soot-thickening and wear
Reduces oil consumption and emissions
Excels in extreme temperatures
Try Signature Series Max-Duty 5W-30 for a serious upgrade

Available While Supplies Last
AMSOIL Series 3000 5W-30 Synthetic Diesel Oil is discontinued and available while supplies last. For a serious upgrade, try Signature Series Max-Duty 5W-30.

Recommended for applications specifying API CI-4+ and prior specifications
Extends drain intervals and maximizes fuel economy
Controls soot-thickening and wear
Reduces oil consumption and emissions
Excels in extreme temperatures
Try Signature Series Max-Duty 5W-30 for a serious upgrade

Series 3000 5W-30 Synthetic Heavy Duty Diesel Oil



Delivers extraordinary lubrication in both diesel and gasoline engines found in commercial, fleet and personal vehicles. Withstands the stress of heat to resist thermal breakdown, oxidation and sludge formation. Wax-free with a broad viscosity range that provides exceptional cold-weather starting and high-temperature protection.

See the Product Data Bulletin for full details.


EXCELLENT PROTECTION AGAINST ENGINE WEAR

  • Reduces ring wear, cylinder bore polishing, oil consumption and valvetrain wear
  • Helps lower maintenance costs and downtime
  • Delivers excellent engine protection over extended drain intervals

VISCOSITY CONTROL

  • Controls soot-thickening and wear
  • Retains viscosity after high-temperature service for continued dependable protection and excellent fuel economy
  • Reduces oil consumption and emissions

EXCELS IN EXTREME TEMPERATURES

  • Provides outstanding protection and performance in hot and cold temperature extremes
  • Resists thermal (heat) breakdown, oxidation and sludge formation better than conventional oils
  • Stays fluid down to -47°C (-53°F) for improved cold-temperature oil flow, reduced bearing wear and easier starting

See the Product Data Bulletin for full details.

Series 3000 5W-30 Synthetic Heavy Duty Diesel Oil



Series 3000 5W-30 Synthetic Heavy Duty Diesel Oil

  • 5 star rating
    Long live my Diesel and Amsoil.
    By  Hop,  a  Verified Buyer  from  Index, Washington  on  June 08, 2022
    I’ve owned my 1998.5 Dodge Ram 3500 Dually since 2000 and, although I tried Kendall Super D3 in the beginning, I wasn’t quite pleased with it and the availability of it. So I changed to Amsoil and I have never looked back. I now have 366,000miles on my truck and it still runs smooth as silk with no engine problems whatsoever. I also run Amsoil gear oil in the front end, reared, transmission, and transfer case. I change the oil on an extended mileage plan in conjunction with my mechanic and I simply could NOT be more happy with this product. Combined with an Amsoil Bypass filter system my truck will very probably outlast me!!!
    Bottom Line
    Yes, I would recommend this to a friend.
    Was this review helpful?
  • 5 star rating
    Great Oil
    By  JIM,  a  Verified Buyer  from  Sun City, AZ  on  May 24, 2022
    I have used this oil for many years. Changing once a year, approximately 12,000 miles. My truck continues to run like new with 257000 miles on the clock
    Bottom Line
    Yes, I would recommend this to a friend.
    Was this review helpful?
  • 4 star rating
    Liked it way better before the prices went sky high
    By  HERB,  a  Verified Buyer  from  Orlando,fl  on  May 17, 2022
    It use to cost me about the same for 3 gallon oil change as I paid for a five quart one, not so nowadays
    Was this review helpful?
  • 5 star rating
    the only oil for my boat
    By  JOHN,  a  Verified Buyer  from  sunshine coast, BC  on  May 15, 2022
    just had the valve cover off my Cummins Marine 5.9. pristine at 1000 hours. Amsoil products are the only oils in all my power equipment.
    Bottom Line
    Yes, I would recommend this to a friend.
    Was this review helpful?
  • 5 star rating
    1977 Ford 1600 tractor
    By  PAUL,  a  Verified Buyer  from  clinton, oh  on  April 25, 2022
    So far so good Time will tell
    Bottom Line
    Yes, I would recommend this to a friend.
    Was this review helpful?
  • 5 star rating
    Great oil for my 2006 DMAX LBZ
    By  RUSS,  a  Verified Buyer  from  South Louisiana   on  April 18, 2022
    Been using this oil since first oil change.
    Bottom Line
    Yes, I would recommend this to a friend.
    Was this review helpful?
  • 5 star rating
    BEST OIL FOR MY CUMMINS 8.9 DIESEL PUSHER EVER
    By  DAREDEVILLEGEND,  a  Verified Buyer  from  TAMPA BAY AREA, FLORIDA  on  April 17, 2022
    The AMSOIL for my diesel is AMAZING. I would never use anything else. Thank You for such a GREAT Product :-) God Bless Bob
    Bottom Line
    Yes, I would recommend this to a friend.
    Was this review helpful?
  • 5 star rating
    Diesel engine oil
    By  R.G.,  a  Verified Buyer  on  March 20, 2022
    Love many different Amsoil products. Diesel engine oil works great in my Tractor
    Bottom Line
    Yes, I would recommend this to a friend.
    Was this review helpful?
  • 5 star rating
    A Great Synthetic Oil
    By  SHERMAN,  a  Verified Buyer  on  February 16, 2022
    I've been using Amsoil Synthetic Oil for many years and my diesel engines just keeps lasting.
    Bottom Line
    Yes, I would recommend this to a friend.
    Was this review helpful?
  • 5 star rating
    Great Oil
    By  GEORGE,  a  Verified Buyer  from  NC  on  January 06, 2022
    AMSOIL products are always reliable and ship quickly. Packaging is durable and clean. They've even sent me free bottles of firearm cleaner in which worked so well I purchased them on top of my usual oil orders.
    Bottom Line
    Yes, I would recommend this to a friend.
    Was this review helpful?