Triax Fleet Supreme 5W-40 API CK-4 Full Synthetic Heavy Duty Diesel Engine Oil | Moly Boron Friction Modified | Extended Drain (5 Gallon)

I decided to go out on a limb and purchase this oil for my 2022 RAM 1500 EcoDiesel. I was paying $150 for 9 quarts of Mopar OEM 5W-40 oil and just was so tired of spending that money every 2 months. Plus the powertrain warranty was up at 100k and I said screw it. No i'm sure you've all heard the horror stories of the Ecodiesels. Before anything else, let me clarify. I purchased the truck brand new and has been completely trouble free. I average about 28mpg, with a 33 gallon tank, or 830ish miles of crusing range doing 75MPH. CP4 pump has not failed yet but I think by driving over 800 miles a week, it keeps it well oiled. Now as for the oil, It was really hard to believe that hard cold starts would disappear. That I can confirm. I'm down in Texas and its been cold, in the 40s and 30s, and it starts right up without any issue. Compared to the OEM oil, it would take a couple turns to crank over. Another thing I noticed is the oil temps run higher. Range with the OEM oil was around 206 vs now around 219. I have not noticed a real significant increase in MPG, still getting around the same 27 to 28 mpg. Truck does run smoother. Idle is a lot more quiet and not as "clunky." So far I've driven about 1300 miles with this oil and it has not even turned a spec black. Oil level has remained the same. Overall, I have been extremely impressed so far. I'm sure its not gonna kill the motor not using the correct "MS-12991" oil spec recommended but this has blown the OEM oil out the park. Oil is oil (in my opinion) but to each is own, just thought I would share my experience so far. Happy driving!

The absolute best oil for PowerStroke. High moly content quiets lifters and injectors. Not an oil in any big box because it is for professional trucks.

My 2000 7.3 EX has never sounded this smooth, and not making laggy hiccups when switching to/from high idle tune. I didnt take it for a drive yet, but ran thru gears to listen to the pull after up-to-temp and Im already impressed. There is an obvious difference and I've run all the top brands.

GREAT OIL HOWEVER I WISH THEY WENT BACK TO THE 5 GALLON BUCKET ON MY FIRST ORDER WITH NEW 5 GALLON DESIGN IT NEVER MADE IT TO ME DUE TO BEING DAMAGED ON TRANSIT AND STILL WAITING ON REFUND A FEW WEEKS LATER SECOND ORDER MADE IT BUT WAS LEAKING NEVER HAD A ISSUE WITH THE BUCKETS

I have a 2016 ram 2500 Cummins that I bought at 27,400 miles. Starting at about 40k miles, I started using this Triax Fleet Supreme. I started with 8k mile oil change intervals, and started sending off oil samples to Blackstone Labs every oil change. Blackstone has continually raised my oil change intervals from 8, 10, 12, 14 and currently about to perform a 16k mile oil change and send that for labs too. Blackstone consistently reports that the oil continues to hold up. This truck is basically only driven on the weekends or long trips, but is almost always towing something in the Rockies on the long trips, so there is definitely some "above average" usage on the motor, when does get used. I ran Mobil1 on one of my intervals because this Triax wasn't available for whatever reason. Blackstone reported very similar results to the Triax.

Been using this oil for a few years now in my 05 6.0 powerstroke excursion, runs quieter and ever since I started using this I have never had a stiction problem again.

Very interesting packaging, wish it had a push button dispenser for dispensing into smaller containers or funnel in engine. Something sorta like laundry detergent lid, maybe if the threads are right in a detergent bottle one could swap it on.

Great oil for my 6.7, F450. Have used this oil now for about 3 years and has a great life, even though I changed every 4,000 miles or so.