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Your order may take longer than normal to arrive. We are experiencing extremely high demand and freight carriers are experiencing delays nationwide. LTL shipments are most severely affected.

Series 3000 5W-30 Synthetic Heavy Duty Diesel Oil

Product code : HDDQT-EA

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

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
    Great product
    By  KENNETH,  a  Verified Buyer  from  Maryville tn.  on  November 06, 2021

    Describe the issue

    Love this product great price to. Going to switch all my vehicles over to amzoil.
    Bottom Line
    Yes, I would recommend this to a friend.
    Was this review helpful?
  • 5
    Diesel oil
    By  Rod,  a  Verified Buyer  from  MI - Michigan  on  November 01, 2021

    Describe the issue

    Fast shipping high quality product
    Bottom Line
    Yes, I would recommend this to a friend.
    Was this review helpful?
  • 5
    Great high quality product
    By  Rod,  a  Verified Buyer  from  MI  on  October 19, 2021

    Describe the issue

    Fast shipping great quality!
    Bottom Line
    Yes, I would recommend this to a friend.
    Was this review helpful?
  • 5
    Awesome
    By  MATTHEW,  a  Verified Buyer  on  October 17, 2021

    Describe the issue

    Fast shipping great product
    Bottom Line
    Yes, I would recommend this to a friend.
    Was this review helpful?
  • 5
    15w-40 Diesel/Marine OIl
    By  BEN,  a  Verified Buyer  from  Tulsa  on  September 16, 2021

    Describe the issue

    I have used this oil for many, many years in my 1985 Mercedes Benz 300SD Turbo Diesel and my 1951 John Deere Model R diesel tractor engine with excellent results. Zero failures
    Bottom Line
    Yes, I would recommend this to a friend.
    Was this review helpful?
  • 5
    Series 3000 - 5w-30
    By  BEN,  a  Verified Buyer  from  Tulsa  on  September 16, 2021

    Describe the issue

    This is the best oil for my 2004 John Deere X495 diesel tractor, the pony motor on my 1951 John Deere Model R diesel tractor and all my smaller 4 cycle gasoline engines. Been using it in these applications for years and years with excellent results and zero engine failures.
    Bottom Line
    Yes, I would recommend this to a friend.
    Was this review helpful?
  • 3
    Oil life
    By  ROBERT,  a  Verified Buyer  from  Edgewater,(Maryland)   on  September 13, 2021

    Describe the issue

    This oil seems to break down at approximately 125 hours. The oil turned black and got really thin. This caused my oil pressure to drop 7-10 lbs. I’m going to give it one more try before I witch brands. This oil is being used in a Cummins 5.9QSB that is in my boat and they recommend 250 hour oil changes. This oil will never make it that long. Thank you for your time.
    Bottom Line
    Yes, I would recommend this to a friend.
    Was this review helpful?
  • 5
    The only oil i will use in my truck
    By  SCOTT,  a  Verified Buyer  from  Houston  on  September 05, 2021

    Describe the issue

    I have used amsoil in my 5.9 cummins for 11 years now. 230k miles and performs like it is new.
    Bottom Line
    Yes, I would recommend this to a friend.
    Was this review helpful?
  • 5
    GMC Duramax 6.5 LBZ (2007)
    By  TED,  a  Verified Buyer  from  Colorado   on  August 25, 2021

    Describe the issue

    Run this in my 2007 pre-DEF engine since new. First ran for 15K and then tested results with SOAP analysis—results were excellent. Now run the oil at least 30K miles, changing filters every 15K. Good MPG and cold wx starts to 0 degrees F. Highly recommend for towing and tough engine use conditions.
    Bottom Line
    Yes, I would recommend this to a friend.
    Was this review helpful?
  • 5
    Great diesel oil for pre-dpf engines
    By  ALEK J,  a  Verified Buyer  from  NC  on  July 30, 2021

    Describe the issue

    I've been using this oil nearly exclusively for the past 15 years in my 2006 Duramax. I average 35,000 miles between oil changes and monitor every 10-12k miles when I change the filters. Amsoil has always provided great protection for my engine. The high TBN lets me use the oil longer than any conventional oil and my truck is running great with 256,000+ miles. Great oil, I'll continue to use it.
    Bottom Line
    Yes, I would recommend this to a friend.
    Was this review helpful?