ULSD vs LSD - PowerStrokeNation : Ford Powerstroke Diesel Forum
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post #1 of 30 (permalink) Old 05-08-2010, 05:14 PM Thread Starter
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ULSD vs LSD

Anybody been driving the same truck long enough to notice the difference in fuel economy?

Three years ago up until a month ago my truck has had nothing changed. When 'regular' diesel was available I was sniffing 20 all the time with 3.55's an auto and 6" on 40's. I changed tires and some other stuff so I cant say what Im getting anymore but the last two years prior to mods Ive been at 15.6- 17 w/Diesel Kleen. Thats a substantial loss just from less lubrous fuel and I think its BS.

Just like all the people who bought flex fuel vehicles(for more $$ to the sticker price) only to find out their fuel economy suffered drastically using it. Lot of smoke and mirrors.

2000 F250 4x4 cc/sb. 6" w/37's and some other stuff.
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post #2 of 30 (permalink) Old 05-10-2010, 01:50 AM Thread Starter
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Re: ULSD vs LSD

Im surprised nobody has anything to add. Doesnt anybody care about their mileage. Thats why I bought the psd in the first place.

2000 F250 4x4 cc/sb. 6" w/37's and some other stuff.
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post #3 of 30 (permalink) Old 05-10-2010, 01:53 AM
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Re: ULSD vs LSD

I lost almost 2mpg with the switch

Dave G

06 F250 Lariat 4x4 leveled on 35s

4 inch flowmaster exhaust
Bulletproof diesel egr delete.
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Performance Machine & Manufacturing Coolant Filter Kit

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post #4 of 30 (permalink) Old 05-10-2010, 05:07 AM Thread Starter
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Re: ULSD vs LSD

I know its probably old hat by now but Im still pissed. The reason it came up from me again is last night I pulled off to fuel and there where three large fueling stations. One a bp, another a citgo, and a marathon. 45 diesel fuel pumps between the 3 stations and not a single one that didnt have some amount of biomass in it. Its like now I cant even get ulsd that pure dino? Its f'n bs.

I suppose some of the people around here didnt have their trucks back when you could get regular diesel and see what mileage was really like.

2000 F250 4x4 cc/sb. 6" w/37's and some other stuff.
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post #5 of 30 (permalink) Old 05-10-2010, 05:13 AM
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Re: ULSD vs LSD

I know its a big no-no, but thats why i run off-road fuel in mine. Its the lsd where i get it at, and i also gain about 2-3mpg running it versus ulsd.

95 CCLB- 238/100s, H2E, termy t500, wipe out pushrods, comp 910s, mbrp exhaust, bdp tunes, and 8" lift
99 ex cab - Rolled 3/10/10
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post #6 of 30 (permalink) Old 05-10-2010, 05:24 AM Thread Starter
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Re: ULSD vs LSD

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Originally Posted by davey99ps View Post
I know its a big no-no, but thats why i run off-road fuel in mine. Its the lsd where i get it at, and i also gain about 2-3mpg running it versus ulsd.
It seems like everything that might help the everyday guy out is a big no-no nowadays. Im seriously considering putting a 500 gal tank in my new shop and running offroad too and dirtying it up for inspection fooling. Im just tired of paying high prices and getting poorer and poorer quality fuel all the time. diesel became lsd fuel then ulsd fuel and now its ulsd and the tiny sticker on the pump says 'this fuel is 5-20 percent bio-mass'. It should just say welcome to 13 mpg! If I could run the offroad lsd and get back up around 20 I wouldnt be bishin all the time. Its almost like they wanna punish us because we DID get decent fuel economy for a couple years.

2000 F250 4x4 cc/sb. 6" w/37's and some other stuff.
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post #7 of 30 (permalink) Old 05-10-2010, 05:27 AM
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Re: ULSD vs LSD

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Originally Posted by TylerDurden View Post
It seems like everything that might help the everyday guy out is a big no-no nowadays. Im seriously considering putting a 500 gal tank in my new shop and running offroad too and dirtying it up for inspection fooling. Im just tired of paying high prices and getting poorer and poorer quality fuel all the time. diesel became lsd fuel then ulsd fuel and now its ulsd and the tiny sticker on the pump says 'this fuel is 5-20 percent bio-mass'. It should just say welcome to 13 mpg! If I could run the offroad lsd and get back up around 20 I wouldnt be bishin all the time. Its almost like they wanna punish us because we DID get decent fuel economy for a couple years.
Yea, i hear ya. Ive never had my tank dipped or anything to check if i was running it. The other nice thing about the off-road fuel is you dont pay the highway tax on it so its like 30cents a gallon cheaper.

95 CCLB- 238/100s, H2E, termy t500, wipe out pushrods, comp 910s, mbrp exhaust, bdp tunes, and 8" lift
99 ex cab - Rolled 3/10/10
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post #8 of 30 (permalink) Old 05-10-2010, 12:21 PM
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Re: ULSD vs LSD

Doesnt pay to run offroad anymore. June 2010 Everything is ULSD.

Dave G

06 F250 Lariat 4x4 leveled on 35s

4 inch flowmaster exhaust
Bulletproof diesel egr delete.
Bulletproof diesel FICM
Performance Machine & Manufacturing Coolant Filter Kit

ECM and FICM tuned by Bill at PHP SCT tunes from Gearhead, Innovative and Wildman
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post #9 of 30 (permalink) Old 05-11-2010, 09:10 AM
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Re: ULSD vs LSD

Most OR has been USLD for quite some time in many regions from what I have seen. I figured it was only old stock that was still LSD.

Don't knock the bio added to USLD it actually greatly helps the negatives of USLD lower lubricity. In fact its likely one of the best thing you can add to lubricate it and it quiets down the clatter as well. Now if they would not jack it up a couple cents to fix what they caused that in and of itself caused fuel to go up from the lowest cost fuel next to old leaded fuel to just below supreme gas fuel which at the time over a 20% price hike over night.

I would love to find some type of buyers clubs that allow you put in money that gives you a decent discount on the fuel as they can make a profit off of having your money for the time period until you use it up on fuel. I use no CC anymore but fuel has me seriously considering going to get one that offers a good % back of fuel purchases.
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post #10 of 30 (permalink) Old 05-12-2010, 05:58 AM
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Re: ULSD vs LSD

i have been adding ashless tcw3 2 stroke oil to my fuel from walmart it seems to help get back some of what was lost due to the switch over

my ride-96 f-350 7.3
D66, IDM mod, HPX line, casserly 2's, custom airdog 2 fuel system, CAI, 3"DP, TW tunes, comp 910's, TE modded *17, custom stack kit w/5" aussies, SD IC, custom traction bars, locker in the rear, CCV nod, SB. con-ofe gutted ebv, gutted pedestal, autometer boost and egt gauges,.I may have left something out
389hp 726tq
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