traindrv

Guy's just been wondering if the the ultra low sulfur fuel will be alright for the older model diesels?

cameroneod

I'd use a lubricant like PowerService.

somis13

the only things are; the U.L.S.D. fuel loosens up old deposits and causes fuel filters to clog fast, within the first few tanks. also your fuel economy will be worse. other wise if you know of a place that still sells #2 fuel give me the address. oh! I have noticed a power loss as well with U.L.S.D.

b4black

It will be fine. Most ULSD complaints have been overblown. Very few filters plugged and very few seals leaked.

No need for lubricants. All diesels already get lubricty additives put in them.

The loss in fuel economy due to less density is very, very small. 1-2% at most. Anything more is not the ULSD's fault.

You likley have been using ULSD for about 6 months now.

infidel

Most likely even longer. Many stations switched over more than a year ago and didn't label it because several tanker loads are required to flush the old higher sulfur fuel from their tanks. I see some places still saying they have the older low sulfur #2, my bet it is really ultra low sulfur diesel but the stations haven't flushed their tanks or just want to attract more business by saying they have something different when they really don't.

gvflinn

I've heard all the horror stories and live in an area that still sells #2 diesel, South Texas. I actually use Mexican diesel, but that's another story. Well,here we go.I am visiting my son in Dallas, Georiga near Atlanta. I've been here almost a month and on my 3rd tank of ulsd took a trip to South Georgia and another day to Athens. I also have a Gear Venders splitter which I use a lot especially with the 22% decrease in rpm when unloaded. I kept the truck/200ctd 4x4 at 60 mph with the cruise as much as possible. On that tank I averaged 24 miles to the gallon, So, what I'm saying I don't see any loss in mileage or performance maybe even a gain. Just my opinion.
I'm also a user of Marvel Mystery Oil and have been in my truck for at least 120,000 miles. It now has 153,000 and still very strong.

displacedtexan

ULSD is still #2, just with less sulfur.

And the best millage I have ever calculated came with ULSD.

proudpapa97

Are you guys talking about putting lubricants directly into the fuel when referencing Marvel Mystery oil???

I have 189,000 on my truck now, wondering if I would benefit at all from adding lubricants ?

ScottN

I'd rather save up for replacing some seals that were about to go anyway, then blow some money on snake oil.