Picked up a good load of diesel fuel. Running smooth.

[The motor guy]

Not sure if this is an old wives tale, but I've heard the diesel fuel in the US is fairly inconsistent in quality. Whether it's the cetane that's off or it's a dry load that didn't have the proper amount of lubricity additives added etc. I used to run the stanadyne lubricity formula in every tank, then stopped because supposedly they have atleast 5 percent bio diesel in everything now.

Now with that being said, I could always tell a difference because you could feel the engine running without it and when you used it you could barely feel it. It wasn't ever anything alarming, but yesterday I came home and I was like like man, she's running smooth today, you can't even feel any vibration in the truck. I had just filled up the day before. They put all new pumps in at the local shell station by me and I used to avoid that station at all costs because the truck ran bad everytime I filled up there, but I've started getting fuel again after they updated the pumps. I can't remember if they replaced the tanks too. I think they did.

Anyways, anyone else notice a difference in how their diesel truck runs from tank to tank?

 

[bullwinkle]

Seems like if I used 2-stroke, or Power Service Silver, when I got a diesel good & hot, a long highway run, it really smoothed them out. The ‘82 300D really liked it, that old girl would purr down the interstate!

 

[Kira]

First I've ever heard of diesel being inconsistent.
I'm looking forward to reading what the oil burners among us have to report.

I would assume that diesel is so important to commerce and fire trucks, that it would be consistent except for isolated instances of water contamination.

 

[The motor guy]

First I've ever heard of diesel being inconsistent.
I'm looking forward to reading what the oil burners among us have to report.

I would assume that diesel is so important to commerce and fire trucks, that it would be consistent except for isolated instances of water contamination.

I've heard the fuel quality in Europe is way ahead of us. Diesels are way more popular in Europe.

 

[Jetronic]

Not sure if this is an old wives tale, but I've heard the diesel fuel in the US is fairly inconsistent in quality. Whether it's the cetane that's off or it's a dry load that didn't have the proper amount of lubricity additives added etc. I used to run the stanadyne lubricity formula in every tank, then stopped because supposedly they have atleast 5 percent bio diesel in everything now.

Now with that being said, I could always tell a difference because you could feel the engine running without it and when you used it you could barely feel it. It wasn't ever anything alarming, but yesterday I came home and I was like like man, she's running smooth today, you can't even feel any vibration in the truck. I had just filled up the day before. They put all new pumps in at the local shell station by me and I used to avoid that station at all costs because the truck ran bad everytime I filled up there, but I've started getting fuel again after they updated the pumps. I can't remember if they replaced the tanks too. I think they did.

Anyways, anyone else notice a difference in how their diesel truck runs from tank to tank?

Yes I did, and so did my dpf. on some fuels I could easily run double or even triple the distance between regens. those were the ones were the engine purred the smoothest aswell.

 

[eljefino]

Gas stations generally lease their tanks due to environmental liability so the old tanks easily could have aged out and needed replacement.

IDK where you live but if they're wiffle-waffling between summer and winter blends of diesel you could have gotten some summer stuff. It has less kerosene and is more energy dense.

 

[The motor guy]

Gas stations generally lease their tanks due to environmental liability so the old tanks easily could have aged out and needed replacement.

IDK where you live but if they're wiffle-waffling between summer and winter blends of diesel you could have gotten some summer stuff. It has less kerosene and is more energy dense.

Houston area. Not sure if they even do winter grade fuels down here

 

[loneryder]

Not sure if this is an old wives tale, but I've heard the diesel fuel in the US is fairly inconsistent in quality. Whether it's the cetane that's off or it's a dry load that didn't have the proper amount of lubricity additives added etc. I used to run the stanadyne lubricity formula in every tank, then stopped because supposedly they have atleast 5 percent bio diesel in everything now.

Now with that being said, I could always tell a difference because you could feel the engine running without it and when you used it you could barely feel it. It wasn't ever anything alarming, but yesterday I came home and I was like like man, she's running smooth today, you can't even feel any vibration in the truck. I had just filled up the day before. They put all new pumps in at the local shell station by me and I used to avoid that station at all costs because the truck ran bad everytime I filled up there, but I've started getting fuel again after they updated the pumps. I can't remember if they replaced the tanks too. I think they did.

Anyways, anyone else notice a difference in how their diesel truck runs from tank to tank?

I had a Mercedes diesel that I used power Service silver in every tank. Some times I forgot and you could tell a definitely noisier engine.

 

[k1xv]

I have been running Sunoco diesel here in southern Vermont in the BMW X5. Starts right up in temperatures close to zero and runs smoothly. Its also the cheapest by 25 cents a gallon. Not sure why.

 

[jhellwig]

Gas stations generally lease their tanks due to environmental liability so the old tanks easily could have aged out and needed replacement.

IDK where you live but if they're wiffle-waffling between summer and winter blends of diesel you could have gotten some summer stuff. It has less kerosene and is more energy dense.

There is no winter or summer blend of diesel. There are wildly variable cloud points depending on the refinery in the range -20 or less to +20 degrees. There are also winter additives and some places blend with #1. There are also variable amounts of bio diesel dependent on state and seller and it doesn't always have to be declared.

 

[The motor guy]

There is no winter or summer blend of diesel. There are wildly variable cloud points depending on the refinery in the range -20 or less to +20 degrees. There are also winter additives and some places blend with #1. There are also variable amounts of bio diesel dependent on state and seller and it doesn't always have to be declared.

I just assumed they added kerosene which is #1, something I doubt they do in the south

 

[6.7 CTD]

I have noticed the same as @Jetronic mentioned above. I was intermittently filling up at a different local station and noticed it coincided with more frequent regens; compared to filling up at my usual station. When filling up at my usual station, the DPF does not accumulate soot as quickly and the truck, often times, regens at the 24 hour mark without ever triggering a regen because of DPF soot load. Side note: I do not use any fuel additives.

 

[jhellwig]

I just assumed they added kerosene which is #1, something I doubt they do in the south

Kerosene is not the same as #1 diesel fuel.

 

[The motor guy]

Kerosene is not the same as #1 diesel fuel.

Good point. What was I thinking? Lol

 

[Lyman]

I got fuel so bad I was swapping filters every few days. Good thing it was my company truck or I would have been real upset. Quality is all over the place with deisel.

 

[Chris142]

My truck hates the new R99 stuff. No power and tons of smoke.

 

[The motor guy]

My truck hates the new R99 stuff. No power and tons of smoke.

What's R99?

 

[Chris142]

What's R99?

The new renewal fuel California has. It's terrible

 

[The motor guy]

The new renewal fuel California has. It's terrible

Just what we need, more crap fuel to take out injectors.

 

[Chris142]

Just what we need, more crap fuel to take out injectors.

This stuff