Product Reviewed: Premium Diesel Oils (DEO,DME)
Current Rating: 4.92 out of 5 stars
Votes & Reviews: 284 vote(s) and 373 user reviews.
Reviewed by Richard: 
Use on my stock 2012 duramax with over 100,000 miles. No issues with dpf or other emission systems. With oil analysis, it holds up great for around 15,000 miles.
Reviewed by Tim:
Seems to be good. Use it in my new John Deere X750 garden tractor.
Reviewed by Joseph:
Time will tell. Engine temperature down by 25 to 30 degrees
Reviewed by Dennis:
The Amsoil products ive purchased are all excellent quality..super fast shipping. I have been using many of your products for years. The oil also made the small engine noise the newer diesels have even quieter. Thank you Amsoil!!
Reviewed by Mark:
I ran this in my jeep there's a 3 L Italian motor and I have never had any problems.
Reviewed by Michael:
I travel a lot fishing bass tournaments all over the country pulling a 21 foot bass boat and I immediately noticed a difference when I started using Amsoil in my Ram 2500 diesel. Engine runs quieter and smoother. Can't say enough good things about Amsoil products.
Reviewed by Matt:
I watch my oils pretty close when buying brands. Amsoil Max Duty has the highest rating in wear tests. Seeing as how I plan to keep my truck for many years, this is my oil of choice.
Reviewed by Jeff:
Wouldn't put anything else in my engine!
Reviewed by Nick:
I love your product
Reviewed by Mark:
My truck love the extended 15w 40 I use the 20 50 in motorcycles you can feel the change right away engine just pers
Reviewed by Steven:
Awesome product
Reviewed by Donald:
Have a 2014 Ram Ecodiesel...they have known bearing defects. Use Amsoil to reduce the likelihood I'll need a new engine.
Reviewed by Andres:
Looking forward to 300000 miles plus on my truck
Reviewed by Richard:
Used this for years served me well ,
Reviewed by Michael:
Best diesel oil out there.
Reviewed by Francisco:
I've been using AmsOil since the company started. I use AmsOil on all my motorized equipment. Great Product
Reviewed by William:
Love it
Reviewed by Douglas:
Use on my 17 ram! Wouldn't use anything else !!
Reviewed by Chuck:
Best oil value for my Cummins.
Reviewed by Ronald:
Best diesel oil
Reviewed by Sam:
In my experience and research AMSOIL is the best. The ordering process is fantastic and I always get the product within a few days of ordering.
Reviewed by John:
I like Amsoil it is a excellent oil
Reviewed by Alexine:
I love the product.
Reviewed by Don:
Great tough high performance oil
Reviewed by Lindell:
I use it in my Ford F250 it seems like the mileage went up a little when changing to the synthetic Diesel Oil.
Reviewed by Raymond:
I have a 2006 Dixie Chopper XT 3300 with the 33 horsepower Generac engine this oil excels in high heat continues to hold its viscosity oil still very clean after 100 hours that if I wanted to I could go to 200 hours before Servicing
Reviewed by Jon:
I used this in my kubota m7040 tractor and I'm very pleased with the product. Usually after runnning regular oil in it, after just a couple of hours it will already turn black, but after running 40 hours on the AMSOIL, it is still very clean.
Reviewed by Mac:
Use in my Onan gas generator
Reviewed by Douglas:
Best oil I have ever used!
Reviewed by Michael:
Great Product
Reviewed by Tony:
Awesome
Reviewed by Morgan:
It's doing what I need to so far. The trucks happy so I'm happy, I like I don't have to run any additives with it.
Reviewed by Ronnie:
I use this oil in my 2012 ram very satisfied with this product
Reviewed by Robert:
what I like is that I can use this oil longer than the MFG recommended intervals so in the long run I will save money and reduce oil usage
Reviewed by Kirk:
Great product. I on mi y use Amsoil
Reviewed by Dwayne:
I am a long time user of many Amsoil products and am very happy with all of them. I never worry about wear in my Duramax with Amsoil Max-Duty Synthetic. I was convinced that Amsoil was a far superior lubricant after reading about Amsoil's initial development. This was high-tech before high-tech was common outside of military applications. It took real vision and perseverance to develop synthetic lubricants that are truly affordable.
Reviewed by David:
Been using for about 14yrs in 93 Dodge Ram diesel. Still runs great. Got around 250k miles
Reviewed by Adan:
Use this on my work truck, didnt notice a huge difference in performance, it still is rough but that may be because the truck is a 7.3l diesel, which are not smooth running engines. I did notice slight increase in fuel economy. We drive the truck a lot and no issues.
Reviewed by Adan:
Use it on work equipment, used on kubota diesel zero turn mowers. No issues, low cost for extended service life, reduces downtime and saves money
Reviewed by Andy:
It makes my customers happy and more confident thier engine will last longer
Reviewed by Andy:
This is on customer vehicles and they love it
Reviewed by Winfred:
Doing good so far, just put in back in June. Seems to be doing good.
Reviewed by Terry:
Great product. Still experimenting since installing my by-pass filter system. Oil looks cleaner than before.
Reviewed by Jon:
My Power Stroke runs better with Amsoil - Bottom Line !
Reviewed by Mitchell:
Always prompt shipping. Best oil out there
Reviewed by Mark:
Great stuff
Reviewed by Sean:
I use this on my boat engines and truly stands up to the test!
Reviewed by Douglas:
Really good motor oil for diesel motors, 15/40 durning summer months, 5/30 for winter weather here in Texas
Reviewed by James:
I call this real engine oil, I feel that while running my truck hard that AMSOIL oil protecting my engine internals better then any other engine oil out there.
Reviewed by Sam:
Change oil once a year or 5000 miles
Reviewed by John:
Changed from a leading brand, this beats all others
Reviewed by Mark:
The best oil period.
Reviewed by Ron:
I have been using this oil in my Dodge ram p/u since I bought it in 02. It had 60 k miles on it then. Now has 350,000 miles.
Reviewed by Virgil:
use in my Dodge Cummins turbo-hope for a lot of miles !
Reviewed by Kenny:
Great product
Reviewed by Fritz:
Engine oil.
Reviewed by David:
I have used this oil for the past 11 years and by far it is the best that I've come across
Reviewed by Mike:
Great prices
Reviewed by Mike:
Great products
Reviewed by Ryan:
The only oil I will use. Great product
Reviewed by Charles:
yes
Reviewed by Charles:
yes
Reviewed by Charles:
great oil
Reviewed by Mike:
I use this product in my 13 Frieghtliner with a DD15. 60-70000 km between oil changes. My DD15 does burn or lose any oil, as a matter of fact I don't have to add a drop. My oil pressure is higher before a service then regular brands overall. I can't rave enough about this oil.
Reviewed by Hilton:
Great oil switching my whole family over to it
Reviewed by Byron:
Great oil for my power stroke.
Reviewed by Dale:
Great oil use it every time.looks new when I change it
Reviewed by Al:
Customer is well pleased with the product!
Reviewed by Fred:
Does a great job
Reviewed by Peter:
Love Amsoil products. I run their lubricants in every oil reservoir in my truck. I don't have a temp gauge on my crankcase oil, but in my transmission, changing to Amsoil brought the temp of the oil down a measurable 10 degrees. that is significant.
I find their products well worth the money, their filters well built, and they ship promptly. It's not a hard decision to make.
Reviewed by Richard:
Great product great customer service
Reviewed by Doug:
I have used Amsoil in my gas vehicles and loved it this is used in my 6.0 Powerstroke will be my first time in my diesel so far it's been 3 months and truck is working great I will reorder for my next oil change and have a better feel for the product
Reviewed by Cheryl:
Great prduct
Reviewed by Arturo:
As advertised ,Great products . Fast shipping
Reviewed by Tom:
First time switching from Shell conventional. I used Amsoil flush before hand and installed the Amsoil bypass filter. The only noticesble difference is that of lower okl pressure. I'll check the oil cleanliness in a few weeks.
Reviewed by James:
The best oil in the business! Keeps my 2004 6.0 running strong. Still running original injectors, high pressure oil pump and head gaskets. I run it 10k with OEM oil filter changes every 5k. Nothing else goes in my trucks!
Reviewed by Dan:
A piece of mind, know I'm protected
Reviewed by Kelly:
Changed oil at 12000 miles with some heavy towing. Had the oil tested and the results came back excellent, going to change again ant 15000 miles and have tested to see where i go next.
Reviewed by Joe:
I exclusively run this in my Titan XD I with the 5.0 Cummins. Great results so far
Reviewed by Jorge:
I use on a Diesel generator.
Reviewed by Ty:
This oil has given my 7.3 '97 power stroke new life. Easier to start on cold mornings.
Reviewed by Robert:
Like I said ,when you run with the best ,you can forget about the rest AMSOIL # 1
Reviewed by Steven:
I use this product in my 2014 Dodge Ram 3500, I love the mileage between oil changes, my filter is hard to replace, I've not burned one drop of oil & my truck runs great! I have used it since my truck was brand new, with great results to date!!!!
Reviewed by Steven:
I use this product in my 2014 Dodge Ram 3500, I love the mileage between oil changes, my filter is hard to replace, I've not burned one drop of oil & my truck runs great! I have used it since my truck was brand new, with great results to date!!!!
Reviewed by Justin:
Oil stays clean for a long period, oil analysis tests great! By far my oil of choice!
Reviewed by Lance:
Best diesel motor oil on the market! Have tried others and would never go back!
Reviewed by Donald:
Best diesel oil
Reviewed by Matt:
Great oil. So much better then full synthetic and dinosaur oil.
Reviewed by Ron:
This is the best oil I've used.
Reviewed by McLovin:
The best oil i have ever used and will continue to use in every vehicle i own.
Reviewed by Duane:
The proof is in the results. I tested the Rotella T6 from dodge and had higher than averages in Iron, copper and silicone. With the amsoil all of those are back within spec on the 1st run of amsoil. I ran the amsoil 500 miles longer than the Rotella. My second batch of amsoil is in the engine right now with 2000miles on it.
Reviewed by BG:
Great Product
Reviewed by NDBuffalo:
Great service with a great product. No better way to protect my L5P !
Reviewed by Joe:
Keep up the great work
Reviewed by Hunty:
Good winter oil
Reviewed by Airman:
So far so good for the oil. The best oil on the market as I am concerned and especially for my Diesel Heavy Duty F-450. Like the other products purchased as well.
Reviewed by Mongo:
Been using this since the original oil was changed out. When I get the chance to talk of how I feel about what is required to make a Diesel engine to be environmentally compliant, (which I'll hold my opinion). No matter how long or short a conversation is, the one question asked of me is what oil am I running? After answering Amsoil, their response is usually, I'm running the best, or if someone is another brand loyalist, their response is it's one of the leading oils out there!
After reading and watching videos on Amsoil, it was a simple choice!
Reviewed by CTown:
By far the best
Reviewed by Big A:
I run this oil in my 2002 Dodge Cummins. I've been running amsoil for the past seven years now. My truck couldn't be happier.
Canada
United States
Great Diesel Oil
This oil is the finest quality I have ever run into. That is why it is in all our Diesel trucks.