ULSD Lubrication Question
Posting Guru
Joined: Jun 2006
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I think it comes down to a matter of trust. Experiance has taught me to trust our fuel (BP Premier), fact is, I trust it more than the additives.
Now I understand those who have less control over their fuel source might just trust the additives more than their fuel.
A few posts back I saw mention of EGR valve engines needing fuel additives, does anyone have any evidance to support this? We see some pretty gunked up ones after not so many miles on here, do we really know that fuel additives reduce this or is it possible that over use of some fuel additives may actually promote the gunked up mess?
Now I understand those who have less control over their fuel source might just trust the additives more than their fuel.
A few posts back I saw mention of EGR valve engines needing fuel additives, does anyone have any evidance to support this? We see some pretty gunked up ones after not so many miles on here, do we really know that fuel additives reduce this or is it possible that over use of some fuel additives may actually promote the gunked up mess?
Hotshot
Joined: Aug 2006
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From: Whittier, CA
Posting Guru
Joined: May 2003
Posts: 1,990
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From: Middleburg, FL
It's my opinion that the gunked up EGR valves are caused primarily by the stock crank case ventilation system and location of the EGR valve itself. The CCV system puts a very fine mist of oil into the air intake. Couple that with the fact that the EGR valve is located right near the front of the intake manifold where air enters the intake and you have a recipe for problems. The oil misted air hits the EGR valve, mixes with the carbon/soot brought in when the EGR valve opens, and you get the messy goo deposits on the valve that eventually cause it to fail. It's a poor design. As a result, I don't think the use of fuel additives will have a large impact on the longevity of the valve one way or the other. I think doing a CCV reroute (which I haven't done as of yet) will actually solve a lot of the EGR valve issues.
Hotshot
Joined: Aug 2006
Posts: 17,400
Likes: 319
From: Whittier, CA
Here is another reference. See the Powerstroke reference manual linked in this post:
https://www.ford-trucks.com/forums/s...48&postcount=1
It's a 50mb download, but is a great part number reference that all Powerstroke owners should have handy. Look at page 126 for a Ford recommendation of an additive for EGR health. Sorry, I could not find a smaller file to reference.
Posting Guru
Joined: May 2003
Posts: 1,990
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From: Middleburg, FL
Thanks for the info Bill. Never can have too much info. Rep points headed your way.
For what it's worth, I've used a fuel additive since my second tank of fuel. However, I use it primarily for the cetane boost and fuel system lubrication (based on things I've read through the years regarding LSD/ULSD fuel). 61k miles later and no EGR issues. However, I don't idle much and don't do short trips, which I think plays into the picture as well regarding EGR valve health.
For what it's worth, I've used a fuel additive since my second tank of fuel. However, I use it primarily for the cetane boost and fuel system lubrication (based on things I've read through the years regarding LSD/ULSD fuel). 61k miles later and no EGR issues. However, I don't idle much and don't do short trips, which I think plays into the picture as well regarding EGR valve health.
Posting Guru
Joined: Jun 2006
Posts: 2,096
Likes: 0
It's my opinion that the gunked up EGR valves are caused primarily by the stock crank case ventilation system and location of the EGR valve itself. The CCV system puts a very fine mist of oil into the air intake. Couple that with the fact that the EGR valve is located right near the front of the intake manifold where air enters the intake and you have a recipe for problems. The oil misted air hits the EGR valve, mixes with the carbon/soot brought in when the EGR valve opens, and you get the messy goo deposits on the valve that eventually cause it to fail. It's a poor design. As a result, I don't think the use of fuel additives will have a large impact on the longevity of the valve one way or the other. I think doing a CCV reroute (which I haven't done as of yet) will actually solve a lot of the EGR valve issues.
Reportedly International wanted to use a more robust EGR valve operating mechanism on the VT365/6.0 but Ford did not want another module to operate it. International tried it Fords way for two years, gave up and went to the better valve on their VT365.
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