Series 3000 Synthetic 5W-30 Heavy-Duty Diesel Oil (HDD)
Maximum Fuel Economy and Excellent Anti-Wear Protection. Engineered for pre-2007 diesel engines in on-road applications as well as all model year diesel engines in off-road applications. Also engineered for all gasoline engines recommending API SL specifications including turbo-charged vehicles. Provides superior wear protection and fuel efficiency.
Product Code: HDD •
Brand: AMSOIL
Product Details
Tech Data
Reviews & RatingRelated Videos
Product Applications Product Application Specs • API CI-4+, CI-4, CH-4, CF-2, CF, SL, SJ
Product Description
Extends Drain Intervals
Maximizes Fuel Economy
Maximum Protection Against Engine Wear
Controls Soot Thickening and Wear
Reduces Oil Consumption and Emissions
Excels in Extreme Temperatures
Service Life
Compatibility HEALTH & SAFETY Click here to view the MSDS Data Sheet for AMSOIL HDD. Keep out of the reach of children. Don't pollute. Return used oil to collection centers.
Diesel Power Challenge
Best for Diesels.Boatload of additive for Excellent TBN analysis between extended oil changes. Item Reviewed: Heavy Duty Diesel & Marine Motor Oils
Would buy over and over!!Great oil. Love it so far!! Item Reviewed: Heavy Duty Diesel & Marine Motor Oils
Great oil again!I use this in my 98 Dodge Ram 2500HD with the 5.9L Cummins 24v engine. It's been great to the engine. Item Reviewed: Heavy Duty Diesel & Marine Motor Oils
Great motor oil for my 6.0 diesel.This motor oil is used in my F250 work truck. I've been using it for around 130,000 miles Item Reviewed: Heavy Duty Diesel & Marine Motor Oils
Motorhome oilGreat lube. Have used in gas and diesel motorhomes Item Reviewed: Heavy Duty Diesel & Marine Motor Oils
Marine 15w40 diesel oilGreat product. I have used this oil in this truck for 20 years. I find it runs as good as the day that I bought it. Item Reviewed: Heavy Duty Diesel & Marine Motor Oils
Recommend this to all Cummins owners2004 Cummins 5.9 300000+ miles still has cross hatch in the cylinders Item Reviewed: Heavy Duty Diesel & Marine Motor Oils
Awesome oilAwesome oil I run 10/30 in my 6.0 powerstroke so smooth and great Item Reviewed: Heavy Duty Diesel & Marine Motor Oils
Great Oil!!!I use this oil in my 2006 Duramax with 180,000 and my 2006 Mercruiser. Oil works great. Item Reviewed: Heavy Duty Diesel & Marine Motor Oils
Diesel Longevity.I've used this product in my '98 Dodge 3500 Diesel 4x4 for 18 years. It has worked excellent for me the whole time. I've tried other products before I tried Amsoil and they failed excessive heat and caused my truck to clatter. Amsoil works flawlessly for extended drain interval and for storage. I plan to continue Amsoil products in the near and distant future exclusively. Item Reviewed: Heavy Duty Diesel & Marine Motor Oils
The best oil on the marketThis oil is amazing i change it every 20 miles i also picked up 3.5 mpg after 1st oil change 10 years ago love it and recommend to every gm diesel owner out there Item Reviewed: Heavy Duty Diesel & Marine Motor Oils
Great products!Been using AMSOIL for over 20 years. Great products! Item Reviewed: Heavy Duty Diesel & Marine Motor Oils
Will always use thisI use it in my Chevy gas trucks one has over 307000 miles on it never been into it 5.3L LS Item Reviewed: Heavy Duty Diesel & Marine Motor Oils
good product.Great oil, I have been running this in my 2500 4x4 dodge diesel for 10 plus years. 302,000 miles on it. Also use it in my Kubota Tractor, run it for 15,000 miles per oil change, change oil filter at 7500. I have sent the oil to lab several times, after 15,000 miles running time, oil always comes back good, never breaks down, good product, Item Reviewed: Heavy Duty Diesel & Marine Motor Oils
Always do.I have gotten great results with the oil. Have gone 40,000 miles on my oil changes. And I am taking baby steps towards 100,000 miles and beyond. Item Reviewed: Heavy Duty Diesel & Marine Motor Oils
GreatFreat Item Reviewed: Heavy Duty Diesel & Marine Motor Oils
I buy over and over againI use in my 2001 F350 powerstroke on pull 35 ft 5th wheel. Item Reviewed: Heavy Duty Diesel & Marine Motor Oils
A full synthetic 15w40 CI4+15w40 AME & a 15micron Donaldson P551018 for my annual oil/filter changes. Item Reviewed: Heavy Duty Diesel & Marine Motor Oils
15/40 Marine Diesel oilBeen using since 2003 in Duramax. Handles all climates. Item Reviewed: Heavy Duty Diesel & Marine Motor Oils
Will definitely only be using amsoilSwitched to amsoil in my 2006 f250 powerstroke. My truck now starts much better, and runs quieter and smoother! Item Reviewed: Heavy Duty Diesel & Marine Motor Oils
I will continue to use this product always.I use this oil in my JD 4720, I am very happy with it, it serves my purpose for what I use it for. Item Reviewed: Heavy Duty Diesel & Marine Motor Oils
Does the job !Only oil I've ever used in my 6.7 Cummins for last 100k aside a rotella hear and there. Also use the amsoil oil filter. Works well together ! Item Reviewed: Heavy Duty Diesel & Marine Motor Oils
Love using the diesel marine in my truck!I've run Amsoil in my 05 Cummins 5.9 for around 200k. And I've used all the different diesel oils Amsoil has to offer from highest of performance to the eco price. But In my leaky 300k plus and climbing work diesel. the marine oil always comes out with just about as much as I put in 10k ago. And the others I would sometimes be up to 3Qt short when drained. Like it's gets so thin that it finds completely new ways to seep out !! But that why I like to order the heavier oil. Lastly my whole truck runs on Amsoil rears,difs,transfer and engine, and I strongly believe that Amsoil is the soul reason why my Cummins runs as good as it does at 310k miles!! Thanks for the spectrum or synthetic lubes to chose Item Reviewed: Heavy Duty Diesel & Marine Motor Oils
OwnerIt does not break down like other oils, doesn't get up, or foam up. Longer time between changes. Item Reviewed: Heavy Duty Diesel & Marine Motor Oils
F350 7.3 diesel.Great product, been using this product for years. Item Reviewed: Heavy Duty Diesel & Marine Motor Oils
This is the only oil I Trust in my TrucksAmsoil heavy duty 15w-40 marine diesel oil has proven to me that it will protect my Cummins engines. I have older high mileage Dodge trucks that get driven on the highway, gravel roads in -15F cold and 100F heat and the lab results from my oil samples have continually came back great. At a minimum I put double the factory recommended mileage on this oil before changing, depending on driving conditions. Item Reviewed: Heavy Duty Diesel & Marine Motor Oils
I will keep using this productReduced engine noise (duramax) Item Reviewed: Heavy Duty Diesel & Marine Motor Oils
Great product been using for many years!I've been using Amsoil diesel and marine for many years I drive 200 miles a day in my Cummins in and out of petroleum refineries 6 to 7 days a week and I work my truck hard! Amsoil has never let me down! This is a great product Item Reviewed: Heavy Duty Diesel & Marine Motor Oils
Great productI have been using Amsoil in my 2003 Chevy Duramax for its entire life with great results. Item Reviewed: Heavy Duty Diesel & Marine Motor Oils
I continue to buy this oilBeen using in my 02 duramax since I bought it in 06 oil stays very clean never black like many diesels Item Reviewed: Heavy Duty Diesel & Marine Motor Oils
Great oil for boatThis 15w-40 Marine oil is all I use in both my 2001 300hp Mercruiser boat engines since 2011. Why you might ask? 1) Only oil that has shown to lubricate the turbo blades on my son's boat diesel super-charger. Item Reviewed: Heavy Duty Diesel & Marine Motor Oils
I would purchase this product againWe have been using this product in our 2004.5 Dodge diesel since 2010. The truck had 110K miles on it when we switched over and added the micro-filtration unit. We now have some 329K miles with about 120K miles of that amount while hauling commercial freight. Now back to my daily driver and still using this oil. Item Reviewed: Heavy Duty Diesel & Marine Motor Oils
Awesome Oil!!!!!Product is great. 8-10,000 miles between oil changes. Price is right. You might as well go with the best. Item Reviewed: Heavy Duty Diesel & Marine Motor Oils
I will always use AmsoilIt helps my 7.3 powerstroke start better since the injectors are oil fired it will start when 0 degrees without being plugged in Item Reviewed: Heavy Duty Diesel & Marine Motor Oils
Great OilOil is like a lot of things where the positive traits are hard to quantify. You just have to know it's good and working. I run it in a Ford 6.0 so it has to be good. Item Reviewed: Heavy Duty Diesel & Marine Motor Oils
I WOULD BUY THIS PRODUCT AGAIN AND AGAINI'VE BEEN USING AMSOIL SINCE 2004 AND I JUST LOVE THESE PRODUCTS. IN MY OPINION AMSOIL IS THE BEST OIL OUT THERE NOTHING COMES EVEN CLOSE. I HAVE A 2002 TOYOTA SIENNA WITH 570.000 MILES YES YOU SAW IT RIGHT 570K MILES AND THAT THING JUST KEEPS ON GOING AND GOING, IT JUST DOESN'T WANT TO QUIT. STILL ORIGINAL ENGINE AND TRANSMISSION. PEOPLE TOLD ME TO GET RID OF IT BUT I TELL THEM IT'S NOT THE TIME YET IT STILL RUNS LIKE A CHAMP AND EVERYTHING IS WORKING ON IT. I USE AMSOIL PRODUCTS ON MY OTHER CARS AS WELL AND A FEW OF MY FRIENDS GOT HOOKED ONCE THEY TRY IT AND THEY NEVER WENT BACK TO THE OIL THEY USED TO USE. THANK YOU AMSOIL FOR YOUR GREAT PRODUCT, KEEP UP THIS AWESOME WORK AND I WISH THAT AMSOIL TO BE AROUND FOR THE NEXT 100 YEARS. Item Reviewed: Heavy Duty Diesel & Marine Motor Oils
Truck&TractorAll we use in all our truck&tractor, Item Reviewed: Heavy Duty Diesel & Marine Motor Oils
Great productI have been using this oil sense I bought my 07 Dodge Ram diesel new 12 years ago. I go 15k between oil changes. I'm glad I started using this Oil and the by-pass system when I did. I have 250k on my truck now and plan to go another 250k. Amsoil has been great every time I place an order as well. Item Reviewed: Heavy Duty Diesel & Marine Motor Oils
I use Amsoil in all my truck gear boxes and diffsHave been using heavy duty diesel marine synthetic motor oil in my duramax work truck for last 70,000 miles. Seems to have superior protection and less breakdown under heavy loads and extreme conditions. Item Reviewed: Heavy Duty Diesel & Marine Motor Oils
Great dependable LubricationMotor oil Item Reviewed: Heavy Duty Diesel & Marine Motor Oils
1989 305cid Chevy goes 351,000.This vehicle I drove everyday for work. Change the amsoil 15-40 marine/ diesel every 7,000 to 9,000 miles. Chose the 15-40 because of the drastic temp changes in Texas. The transmission gave up motor still strong didn't want to put any money in it sold it to a friend. Amsoil is an amazing product. Well worth the money. Item Reviewed: Heavy Duty Diesel & Marine Motor Oils
I use this oil all winter longI run this oil all winter long,every winter Item Reviewed: Heavy Duty Diesel & Marine Motor Oils
7.3 diesel vanI use this oil in my 7.3 liter van for the fact that it does great in the cold weather that I get into. I travel a lot in the northern states and it always turn over. Item Reviewed: Heavy Duty Diesel & Marine Motor Oils
Excellent for my needsAfter taking professional training for oil analysis it occured to me this was a suitable option. I have a diesel truck that gets infrequent use and having a 14 tbn gives me comfort in fighting acidity while in storage. Item Reviewed: Heavy Duty Diesel & Marine Motor Oils
Quieter 7.3 Hoping for excellent analysisI've got a strong running 7.3 with 292,000+ on the clock. Have been using another oil with excellent UOA reports and getting close to 10k on oil changes. Decided a while back it was time to see what this Marine Amsoil was all about. Immediately noticed my injectors were much, much quieter. Will be sending a sample in for testing in about 2000 miles and see how things compare. Item Reviewed: Heavy Duty Diesel & Marine Motor Oils
Best heavy duty oil for cold climatesI use this in my turbocharged Subaru during the cold months. It has loads of zinc and phosphorus so it protects the turbo, and its high viscosity index provides great cold start protection as well as high temperature protection in the turbo bearings. My motor and turbo have over 80,000 miles on them and are still running like new. Item Reviewed: Heavy Duty Diesel & Marine Motor Oils
Love it!Does what it says it does, went from running my oil from 5,000 miles to 20,000 miles. Saves money and time , engine temp runs cooler when under a heavy tow going up a grade, oil doesn't smell burnt when doing a change easier start up in cold whether with not having the truck plugged in. Extremely satisfied with this product! Item Reviewed: Heavy Duty Diesel & Marine Motor Oils
YesI change oil every 15k and I think is still good. 350 ml Bluetec Item Reviewed: Heavy Duty Diesel & Marine Motor Oils
Happy with productsHas improved the performance , better fuel economy ,easier starting saves money from not having to change oil.I also use cetane boost and injector cleaner Item Reviewed: Heavy Duty Diesel & Marine Motor Oils
I would buy this product again.I feel that it is a superior product. Item Reviewed: Heavy Duty Diesel & Marine Motor Oils
I have this oil to thank for my Dodge Cummins long life.I run an Amsoil bypass filter system and I am religious about changing filters and doing oil analysis. My old "rig" has always started well in winter and I only have to add oil when I change my filters. Item Reviewed: Heavy Duty Diesel & Marine Motor Oils
Bought for winter use.Works good when dealing with interior Item Reviewed: Heavy Duty Diesel & Marine Motor Oils
Definetly buy againI use amsoil in everything I own! Works great in my 06 duramax,01 powerstroke and Canam defender side by side. Peace of mind for sure!! Item Reviewed: Heavy Duty Diesel & Marine Motor Oils
I only use this oilI use this oil for my 1999 Ford F250 7.3 liter diesel. This oil has very good longevity. For a diesel I change this oil about every 10,000 miles. It cuts down on oil change intervals. I am sure it could go much longer. Item Reviewed: Heavy Duty Diesel & Marine Motor Oils
Best oil on the marketI have been using this oil in my Sequoia, Continental, and motorhome for 15 years. Tell me what other oil lasts 25 k in a gas engine? Item Reviewed: Heavy Duty Diesel & Marine Motor Oils
Series 3000I cannot say enough about this oil. My truck starts easier, runs better, and probably gets better fuel economy. I "push" Amsoil on all my friends because I believe in it so much. Item Reviewed: Heavy Duty Diesel & Marine Motor Oils
Big RedAmsoil is the only oil, grease and lubes that have been used in our 2001 F-250. It now has 210,000 miles with no use of any oil. This is our second diesel truck that we have use only amsoil. The other truck had 300,000 when we sold it. It did not use any oil either. Item Reviewed: Heavy Duty Diesel & Marine Motor Oils
This is the best oil ever!I use this oil in my Master Craft boats and it keeps them working perfectly year after year after year. Item Reviewed: Heavy Duty Diesel & Marine Motor Oils
Diesel oilHave used this oil for years, would not use anything else in my diesel truck Item Reviewed: Heavy Duty Diesel & Marine Motor Oils
Diesel Marine Oil 15W-40I've used AMSOIL products for years. I have an 2004 F350, 6.0 liter and this is the only oil I run. Amsoil keeps the engine clean and long lasting. Also use AMSOIL in my 2007 Expedition. Both vehicles have close to 200,000 or more than. Still running strong. Item Reviewed: Heavy Duty Diesel & Marine Motor Oils
Always use this productRun these fluids in all vehicles Item Reviewed: Heavy Duty Diesel & Marine Motor Oils
THE ONLY oil to useMy diesel will use nothing else! Item Reviewed: Heavy Duty Diesel & Marine Motor Oils
First product I've tried results look promisingDaily driver ,200000+ miles runs like new Item Reviewed: Heavy Duty Diesel & Marine Motor Oils
I would buy products againIt great oil and keep engine running life Item Reviewed: Heavy Duty Diesel & Marine Motor Oils
amzoil.15/40.diesel1995.dodge.2500.12.valve.5/9.cummings.diesel.only.500.miles.since.change.have.notice.better.fuel.efficiency Item Reviewed: Heavy Duty Diesel & Marine Motor Oils
Very pleaded with purchaseWorks perfectly Item Reviewed: Heavy Duty Diesel & Marine Motor Oils
The value of a Classic.Greetings, Item Reviewed: Heavy Duty Diesel & Marine Motor Oils
Excellent product!I've been using Amsoil 15W-40 Heavy-duty Diesel and marine oil in my 2006 Silverado 2500HD for 10 years now. Oil and filter change intervals average around 12,000 to 18,000 miles. Item Reviewed: Heavy Duty Diesel & Marine Motor Oils
15W40 Heavy Duty Diesel OilI have an 06 Dodge with the Cummins. These 'older' diesels required a CI4+ oil. There is much debate in the oil world about the qualities of the newer oils vs the older ones - specifically that the old CI4+ oils had more detergents in them, which the older engines liked better. Even though the newer oils are backwards compatible, they apparently do not have the same detergents in them. This has been the only CI4+ rated oil I can still find. Its the only oil I use in the Cummins. Item Reviewed: Heavy Duty Diesel & Marine Motor Oils
15w40 he diesel oilUsed this oil for 27 years and never had a oil leak or any engine failure. Put 300,000 miles on Dodge TURBO Cummins, check but never had to adjust valves. Only oil I will use. Item Reviewed: Heavy Duty Diesel & Marine Motor Oils
AwesomeBeen using this on 7.3 heui truck oil shearing monsters. I'm at 9k and been pushed to 15k for next oil analysis definitely a efficient product and same $$$$ on oil changes.. Item Reviewed: Heavy Duty Diesel & Marine Motor Oils
The best oil.I maintain seven vehicles so changing oil could be a full time job. I use Amsoil because it is the best oil made and the best filter in the industry. My twin sons just became 16. For their birthday I had them learn how to change the oil in their trucks by converting them to Amsoil . This oil seems to be better suited to my older VW Jetta than the other Diesel oils. I use less of this oil. My car has nearly 300,000 miles and has always used about 4 oz of oil every 500 miles. With this oil that amount is cut in half. Item Reviewed: Heavy Duty Diesel & Marine Motor Oils
I use this product in my Dodge diesel and my boatI also use the motorcycle kit for oil and filter changes in my Harley Davidson Item Reviewed: Heavy Duty Diesel & Marine Motor Oils
Hard to ChooseI never really know if I'm choosing the best product for my applacation. Wish Item Reviewed: Series 3000 Synthetic 5W-30 Heavy-Duty Diesel Oil (HDD)
Excellent Oil=Long running pickup!I have a 2005 Dodge 3500 with a 5.9L diesel. From the first time I changed the oil or had it changed, I have been using Amsoil 5w-30 with the Amsoil Filter. The truck now has over 435,000 miles and just keeps going! I do a lot of Freeway driving all across the West, sometimes pulling a stock trailer. Amsoil products keeps it going. I average about 25-28 MPG, and do about 35K-40K miles per year. Thanks for keeping me on the road! Item Reviewed: Series 3000 Synthetic 5W-30 Heavy-Duty Diesel Oil (HDD)
Perfect winter oilThis is my winter oil for my 1998 Dodge Ram 5.9L diesel. Use this oil with my Amsoil bypass system.....change to it in November (from 15-40). Have been using this as winter oil for many years with absolutely no issues, truck starts well whether plugged in or not. Item Reviewed: Series 3000 Synthetic 5W-30 Heavy-Duty Diesel Oil (HDD)
Good oil!Was having some stiction issues with my 7.3. Was recommended this product by an oil specialist. Never heard of Amsoil before I used it. Seemed like my engine loved it as I could tell that it started right up and seems to have restored any loss of power. Stiction seems to have gone away even in cold start ups. Will exclusively use this product. Item Reviewed: Series 3000 Synthetic 5W-30 Heavy-Duty Diesel Oil (HDD)
GREAT product!!This review is based on a van that I no longer have. I used Series 3000 in that van for years... I believe 3 years?? Perhaps 4. At the time that it suffered a rollover and was "totaled", the engine oil pressure (a major indicator of bearing wear) was exactly as high as when the van was new to me. Item Reviewed: Series 3000 Synthetic 5W-30 Heavy-Duty Diesel Oil (HDD)
Excellent OilI've been using Series 3000 5w-30 in my 2005 Ram 2500 with Cummins engine for 5 years now. I change it once a year, every 20,000 miles (without sampling...vlimd faith). Truck had 140k miles when I bought it and first put in Amsoil....it now has 240k and runs perfectly. I will always use Series 3000. Item Reviewed: Series 3000 Synthetic 5W-30 Heavy-Duty Diesel Oil (HDD)
Excellent product!!16 plus years in gas and diesel engines, no regrets!! Item Reviewed: Series 3000 Synthetic 5W-30 Heavy-Duty Diesel Oil (HDD)
I will keep buying this everytime I change my oilThe only oil I have ever used that frees up extra horsepower Item Reviewed: Series 3000 Synthetic 5W-30 Heavy-Duty Diesel Oil (HDD)
I believe in Amsoil productsI have been using Amsoil lubrication in all of my cars, trucks, tractors and compressors since 1974. I am very happy with the results I have had with Amsoil - higher mileage, better cooling due to less friction and longer oil change schedule. Item Reviewed: Series 3000 Synthetic 5W-30 Heavy-Duty Diesel Oil (HDD)
Only the best!I've used Amsoil for over 40 yrs. starting with my 1st VW diesel around 1973 and never had a worry. Item Reviewed: Series 3000 Synthetic 5W-30 Heavy-Duty Diesel Oil (HDD)
Jack Sandow, CEO, "Aquatic Research South", Waycross, GAI wouldn't crank up my 2001 Powerstroke 7.3 diesel without Series 3000 in the crankcase !! It's amazing protection, and allows me to only change oil when needed. The auxillary remote filtration system I purchased from Amsoil allows me years of worry-free protection !!!! NOTHING better !!!! Item Reviewed: Series 3000 Synthetic 5W-30 Heavy-Duty Diesel Oil (HDD)
Jack Sandow, CEO, "Aquatic Research South", Waycross, GAI wouldn't crank up my 2001 Powerstroke 7.3 diesel without Series 3000 in the crankcase !! It's amazing protection, and allows me to only change oil when needed. The auxillary remote filtration system I purchased from Amsoil allows me years of worry-free protection !!!! NOTHING better !!!! Item Reviewed: Series 3000 Synthetic 5W-30 Heavy-Duty Diesel Oil (HDD)
Series 3000 5W-30 Heavy Duty Diesel oilI've been using using this product in my 2001 Ford Excursion 7.3L Diesel. Change every 15,000 miles . 288,000 miles so far ! High pressure oil actuates the fuel injectors on this engine. Still on original injectors. I believe the full synthetic oil has helped extend the life of the injectors. Several of my friends have had to replace their injectors on similar Ford diesels. Looking to put 500k miles on my Excursion. Amsoil products in transmission and rear end as well. Item Reviewed: Series 3000 Synthetic 5W-30 Heavy-Duty Diesel Oil (HDD)
improved fuel economySince i have used this product i have noticed improved fuel economy in my 3.0 diesel engine. This product has a very high film strength and good lubricity. I will watch the performance as time passes.. Item Reviewed: Series 3000 Synthetic 5W-30 Heavy-Duty Diesel Oil (HDD)
Series 3000 5W-30 for the 6.0 Powerstroke engineI have experienced quite a few problems with the 6.0 Powerstroke engines and I can say that my 6.0 runs like a top after switching to this oil. As far as I am concerned this is the only oil that I will ever put back into this machine - it has made a noticeable difference, especially in cold weather. I was skeptical at first but this oil was made with the 6.0 in mind. The standard 15w-40 oils tend to get sheared down by the High Pressure Oil Pump meaning they are 15W-40 when you put it in the engine but it is not 15W-40 when it comes back out. Where the Series 3000 oil goes in at 5W-30 and comes out at 5W-30. Item Reviewed: Series 3000 Synthetic 5W-30 Heavy-Duty Diesel Oil (HDD)
Series 3000 5W-30 Synthetic Heavy Duty Diesel OilI have been using this oil for over 5 years now and I would not change for any other brand. Amsoil is easy to work with and they ship fast. Great company. Item Reviewed: Series 3000 Synthetic 5W-30 Heavy-Duty Diesel Oil (HDD)
180,000 miles with Amsoil series 3000I BOUGHT A USED 2007 DODGE DURANGO LIMITED WITH A 4.5 L GAS ENGINE IN 2007. IT HAD 18,000 MILES ON IT AND NOW HAS 190,000 MILES. I HAVE USED THE SERIES 2000 OIL ITS ENTIRE LIFE, CHANGING EVERY 10,000 MILES. IT DOES NOT USE ANY OIL IN A 10,000 MILE INCREMENT. Item Reviewed: Series 3000 Synthetic 5W-30 Heavy-Duty Diesel Oil (HDD)
Chevy dieselI have used this product for years. I keep my vehicles for many years so important to keep wear under control. When my trucks hit 45000 miles I switch to Amsoil 3000 and have gotten longevity on all with no major engine trouble. Never had to plug my vehicles in, in cold weather. And I've had to travel upstate NY in very cold weather. Item Reviewed: Series 3000 Synthetic 5W-30 Heavy-Duty Diesel Oil (HDD)
Reviewed by Chip: update after 9k milesUtterly boring, reliable oil. 12 quarts + EaO80 filter + 9.1k miles = no oil burned + analysis came out excellent :-) Item Reviewed: Series 3000 Synthetic 5W-30 Heavy-Duty Diesel Oil (HDD)
Reviewed by Chip : excellent oilI'm lazy - changed the main bearings this morning with the crank still in place. Along with a new oil pump, oil pickup, 6 quarts HDD + EaO15, I'm good for at least a year. Item Reviewed: Series 3000 Synthetic 5W-30 Heavy-Duty Diesel Oil (HDD)
Reviewed by Ryan Scott: the best multipurpose oilWith some research I found out that series 3000 is a very high end oil in terms of what goes into it (read robust additive package). Item Reviewed: Series 3000 Synthetic 5W-30 Heavy-Duty Diesel Oil (HDD)
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Very good quality.