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 Post subject: Fuel additives?
PostPosted: Tue Aug 23, 2022 2:51 pm 
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Joined: Tue Jul 26, 2022 1:39 pm
Posts: 3
81 LUV diesel here... What is everybody using for an addtive to the fuel? I have heard that today's diesel fuel is not good for these older diesel engines.TIA


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 Post subject: Re: Fuel additives?
PostPosted: Tue Aug 23, 2022 4:27 pm 
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Addicted to LUV
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Joined: Tue Sep 13, 2005 7:54 am
Posts: 1696
Location: Germantown, TN (right next to ElvisTown)
Glad you're back.

That's really the least of your concerns with this engine. I posted this in response to your last question. I didn't get any response at all.
JoeIsuzu wrote:
Take a look at this topic, I listed some really important maintenance things that should not be neglected –– especially when the history of the truck is unknown.
viewtopic.php?f=20&t=30256&p=219602#p219602

But to try to answer your question -- today's ULSD fuel has been in use since when, 2006? It typically caused old pump seals to leak. That ship has already sailed. :? As far as I kmow, old pumps either leak, or they've already been overhauled. A full overhaul by a competent shop will set you back about $600, if you do the removal and re-installation.

Jack

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JoeIsuzu@IsuzuPup.com
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 Post subject: Re: Fuel additives?
PostPosted: Fri Aug 26, 2022 8:43 pm 
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LUVTruck.com Regular

Joined: Thu Apr 22, 2010 1:19 pm
Posts: 111
Location: North Arkansas
As Jack stated, today’s diesel fuel is a different animal. Sulphur is a lubricant and current diesel fuels have very little sulfur (thus the ULSD designation). Adding lubricity to the fuel is key to your fuel pump’s life. Most additives help in this sense. 2-stoke oil also works well for increasing lubricity although it doesn’t bring much else to the table.

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'81 Luv diesel 4X4 - daily driver


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