snake oils?
Lead Driver
Joined: Nov 2005
Posts: 5,212
Likes: 4,215
From: Kaysville Utah
Utah doesn't mandate any Cetane or Wear scar standards. So refineries can get away with using the Federal minimum.
So I don't see any stations in Utah advertising a Premium Diesel. So unlike Texas as mentioned in the video and I believe California also has a premium. There is no premium diesel in Utah.
There are four refineries in Utah, And last I heard, about 70% of their production is shipped out of the state. Fuel is trucked to neighboring states and there is a major pipe into the Northwest.
All the crude oil refined at the local refineries comes from Utah. There is a large oil field in the Uintah basin. That crude has a high parafin wax content and I know they take special procedures to refine it.
In the absence of state standards, about all I can do is inspect my fuel filters and see if they are getting dirty between fuel changes and add a lubricating product just in case.
So I don't see any stations in Utah advertising a Premium Diesel. So unlike Texas as mentioned in the video and I believe California also has a premium. There is no premium diesel in Utah.
There are four refineries in Utah, And last I heard, about 70% of their production is shipped out of the state. Fuel is trucked to neighboring states and there is a major pipe into the Northwest.
All the crude oil refined at the local refineries comes from Utah. There is a large oil field in the Uintah basin. That crude has a high parafin wax content and I know they take special procedures to refine it.
In the absence of state standards, about all I can do is inspect my fuel filters and see if they are getting dirty between fuel changes and add a lubricating product just in case.
Last edited by Painted Horse; Apr 18, 2026 at 09:53 AM.
Trojan Pig
Joined: Mar 2018
Posts: 129
Likes: 82
From: Southern Arizona
Same here in AZ, the diesel is ****e! I'll keep using OptiLube XPD or ArchOil 6500. His whole reasoning for saying to not use them is the possibility of debris. That is a fart in a stiff wind at best.
Lead Driver
Joined: May 2021
Posts: 5,766
Likes: 3,416
From: Uh oh, CA
I wonder if that is the cetane rating for the B20 in CA. From all I read, the R99 sold in CA has a cetane rating of 70 or higher.
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Cargo Master
Joined: Oct 2011
Posts: 2,862
Likes: 765
From: SoCal/Wyoming
53 is for standard diesel. While R99 has a minimum rating of 70, there are a number of articles out there that argue that the ideal cetane rating for a modern diesel engine is somewhere between 45-55 so it all comes down to what study you want to support. My local truck stop sells R99 and I put in Opti-lube which bumps it up another 3 points or so and that would put it way above what might be ideal. I started a thread back when this fuel first showed up around here and so far, I have not noticed anything different in how the truck starts and runs.
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Lead Driver
Joined: May 2021
Posts: 5,766
Likes: 3,416
From: Uh oh, CA
53 is for standard diesel. While R99 has a minimum rating of 70, there are a number of articles out there that argue that the ideal cetane rating for a modern diesel engine is somewhere between 45-55 so it all comes down to what study you want to support. My local truck stop sells R99 and I put in Opti-lube which bumps it up another 3 points or so and that would put it way above what might be ideal. I started a thread back when this fuel first showed up around here and so far, I have not noticed anything different in how the truck starts and runs.
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John in OkieLand
1999 - 2003 7.3L Power Stroke Diesel
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Jul 21, 2025 05:33 PM