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Did an oil change with Triax Fleet Supreme 15w40 last night,, including the hpop reservoir because I wanted to hear a difference right away if there was one. When I started the truck it was noticeably quieter. It made so much of a difference that I had to check my hydra and make sure it wasn't in the quiet tune. I would describe it as sounding a bit more like a stock truck with split shot injectors. Drove around a lot today and it seemed that the truck might have a slight bit better throttle response. I can't really attribute everything to triax though as she was in need of an oil change. Might have just been the fact that it was new oil.
I think this was the same reason that I saw such a difference with Triax oil in my F350 . Since I have single shot injectors in the f350 they were pretty loud so once I changed over to Triax oil it made a substantial difference in the sound of the engine. My F450 still has split shots but I did notice a difference in the sound of that engine just not as much as the one with single shots. With that said my F450 split shots are running great with Triax as they seemed very tired with Dino oil. I know this could be just from switching to synthetic but the truck definitely runs better and has no problem starting up in the morning like it used to.
Just finished reading the Triax threads. Not hearing many downsides here. Anyone going from 15W40 Dino getting leaks from the switch to the Triax 5W40?
Just finished reading the Triax threads. Not hearing many downsides here. Anyone going from 15W40 Dino getting leaks from the switch to the Triax 5W40?
no leaks yet but only have about 1500 miles on the triax .....
No leaks here. I think that info is pretty old as far as switching from dino to synthetic.
I think that is very old. I read that back when Mobil first started marketing full synthetic oil back in the 70's or 80's, it was almost pure "group IV" PAO base stock which did not play well with seals in the engine, or something to that effect which could cause new leaks. Modern "synthetic oil" is generally some proprietary blend of Group III and Group IV base stock as I understand it, and is not likely to cause leaks that weren't there already.
Well, I guess I'll give it a go next change. It seems like everyone's skipping the 15W40 in favor of the 5W40 which Triax data suggests is better all-around, that right? I'm currently in Southern California so doesn't get below 40, but am planning on hitting Wyoming and Colorado a bunch.
Well, I guess I'll give it a go next change. It seems like everyone's skipping the 15W40 in favor of the 5W40 which Triax data suggests is better all-around, that right? I'm currently in Southern California so doesn't get below 40, but am planning on hitting Wyoming and Colorado a bunch.
I would have gone right to the Triax 5w40 instead of the 15w40 like I did, but I got a really good deal from a local seller and bought 4 gallons of 15w40. I only bought ~2 gallons of the 5w40, which I plan to blend with the 2 gallons of Rotella T6 I have left. That will be after the Triax 15w40 has had a cross country trip towing 10,000 - 12,000 lbs cross country from GA to WA, AZ and back to GA.
The old days of "new leaks" are long gone sir, drain and fill with confidence.
Well, I guess I'll give it a go next change. It seems like everyone's skipping the 15W40 in favor of the 5W40 which Triax data suggests is better all-around, that right? I'm currently in Southern California so doesn't get below 40, but am planning on hitting Wyoming and Colorado a bunch.
Is the 5w40 better for things excluding cold starts? My truck starts like a champ in the low 20s with 15w40 triax. Maybe I missed something in this thread about the 5w40 being better all around.
Is the 5w40 better for things excluding cold starts? My truck starts like a champ in the low 20s with 15w40 triax. Maybe I missed something in this thread about the 5w40 being better all around.
apparently Triax says that the 5w 40 has a better additive package than 15w 40. I am currently running both and I honestly can't tell a difference. The 5w 40 helped out tremendously with my rough cold starts in the morning and the 15 W 40 made my single shots much more quiet. I will buy whatever comes in the gallon jugs next go-round , I did not do so well with the 5 gallon pail. Not to bring back a sore subject from the dead
I think that is very old. I read that back when Mobil first started marketing full synthetic oil back in the 70's or 80's, it was almost pure "group IV" PAO base stock which did not play well with seals in the engine, or something to that effect which could cause new leaks. Modern "synthetic oil" is generally some proprietary blend of Group III and Group IV base stock as I understand it, and is not likely to cause leaks that weren't there already.
I think that was actually Amsoil that did that. The founder just repackaged jet engine oil. Super high temperature tolerance but hell on seals not designed for it.
Virtually all oils use mostly synthetic base stock. Most people don't realize what "synthetic" means and why it's used in production. I made finished blends at Chevron in the early 80's before "synthetic" was really a thing. Petroleum crude, being a natural product from all over the world, is vastly varied in it's chemical structure and reacts very differently to additives when you're trying to blend it. Lots to batches were either re-refined or sold at a discount when blends failed to meet spec because the base stock varied so wildly. The object of synthetic base stocks is to create a consistent chemical structure so your blends hit spec every time. The big variable nowdays is the quality of the additive packages.
apparently Triax says that the 5w 40 has a better additive package than 15w 40. I am currently running both and I honestly can't tell a difference. The 5w 40 helped out tremendously with my rough cold starts in the morning and the 15 W 40 made my single shots much more quiet. I will buy whatever comes in the gallon jugs next go-round , I did not do so well with the 5 gallon pail. Not to bring back a sore subject from the dead
Good to know on the additive package, now that you brought it up I seem to recall reading that awhile back but must have forgot. I found that nosing the truck up behind my 86 f250 with the tailgate down really helped when pouring a 5 gallon pail. I did spill a bit though as I went from hole on top to hole on bottom to early.
On January 13th I inquired to Triax about why they claimed the Fleet Supreme 5w40 was a better oil than the Fleet Supreme 15w40 and this was the answer I received.
Originally Posted by George from Triax
The 5w40 has more PAO, lower pour point and better fuel economy. The VI index is higher on products with lower pour points. Both products would be a great choice though. When at operating temperature, both products are a SAE 40 however, so in that, they are equal.
Thanks,
George
I had to look up PAO, it is an acronym for Poly Alpha Olefin
Originally Posted by Google Search for PAO
Poly Alpha Olefin or PAO is a 100% synthetic base oil stock used in the production of high performance lubricants. PAO's typically have a higher viscosity index than mineral oils and better oxidative stability and are less likely to breakdown.
Now, why they would list both oils as full synthetic and under the same label as Fleet Supreme and include a different blend of additives, I don't know. There is a lot of information including elemental analysis on the oil in this thread, but here is a short snip of some of the facts involved presented by Triax, Rotella and TSC in a table that I created using Excel.
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