Fuel Filter/Oil Changes?
Cargo Master
Joined: Dec 2007
Posts: 2,196
Likes: 120
From: Carstairs Alberta
Good clarification. My point was that with fuel pressure it may run fine with much less than the 45psi min but damage is happening so audible/Soto performance may be too late. Not sure what the 6.7 is like but our 6.0 there is nothing to warn us when pressure is minimal except aftermarket gauges.
Laughing Gas
Joined: May 2005
Posts: 1,082
Likes: 1
From: Illinois
Good clarification. My point was that with fuel pressure it may run fine with much less than the 45psi min but damage is happening so audible/Soto performance may be too late. Not sure what the 6.7 is like but our 6.0 there is nothing to warn us when pressure is minimal except aftermarket gauges.
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Cargo Master
Joined: Jul 2008
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I couldn't have stated that better. Thats why I participate in discussions and ask questions. Ultimately, that's why I am a supporter of FTE. I signed up for a 3 year subscription. There is a wealth of knowledge here and it wouldn't be what it is without the management that FTE and its members present.
Super Moderator
Joined: Aug 2003
Posts: 25,479
Likes: 742
From: Isanti, MN
Originally Posted by 720deere
Nearly a year ago we got confirmation from Ford insiders that the oil life monitor does not have the ability to analyze the oil
1st post, long time lurker, recently joined as an FTE member. I work for Ford btw and my name is Paul.
The 6.7L is more efficient from a base engine design perspective. Migrating to the CGI block material from grey iron results in much less cylinder bore distortion as well. DPF regeneration impact on oil has also been reduced significantly by using fewer "active" DPF regen cycles (post injection) in favor of "passive" regen.
The end result is far less fuel in oil dilution under most operating conditions. Extended idle and low speed stationary power applications can accelerate fuel in oil percentages over time to some extent. Truck operation at moderate highway speeds will keep this in check.
The oil life monitor/systems programming is designed such that it monitors the engines operating parameters (temp, speed, engine load, frequency of dpf regen events, etc.) and adjust oil change intervals accordingly. Some of our fleet development vehicles such as FP&L have reported >9K miles before the oil monitor activated. Note that these fleet test vehicles, along with the others we have across the country have an oil analysis performed after every oil change in most cases.
During engine development it was determined that DSI (down stream injection or 9th injector) was less desireable for a number of factors for this engine program. Refinement of the active/passive regeneration strategy, eliminating the complexity of having another low pressure fuel system to manage, improved engine efficiency and the cost were just a few of the variables.
My intent is to post from time to time when the opportunity presents itself and learn what I can to help make our products better in the future. Please know that I only frequent FTE once a week or so when workload permits and athough unfortuneately I'm unable to respond to every question or concern on the forum regarding the 6.7L or Super Duty, I will try to provide relevant information when/where I can (such as above) within the guidelines of the company. Typically I've found that hearing direct feedback from multiple owners on a particular topic/thread provides a good overview of what the good the bad and the ugly is.
Thanks for your time, have a great day!
-Paul
Disclaimer: I work at Ford, and this is my own opinion and is not the opinion of Ford Motor Company.
The 6.7L is more efficient from a base engine design perspective. Migrating to the CGI block material from grey iron results in much less cylinder bore distortion as well. DPF regeneration impact on oil has also been reduced significantly by using fewer "active" DPF regen cycles (post injection) in favor of "passive" regen.
The end result is far less fuel in oil dilution under most operating conditions. Extended idle and low speed stationary power applications can accelerate fuel in oil percentages over time to some extent. Truck operation at moderate highway speeds will keep this in check.
The oil life monitor/systems programming is designed such that it monitors the engines operating parameters (temp, speed, engine load, frequency of dpf regen events, etc.) and adjust oil change intervals accordingly. Some of our fleet development vehicles such as FP&L have reported >9K miles before the oil monitor activated. Note that these fleet test vehicles, along with the others we have across the country have an oil analysis performed after every oil change in most cases.
During engine development it was determined that DSI (down stream injection or 9th injector) was less desireable for a number of factors for this engine program. Refinement of the active/passive regeneration strategy, eliminating the complexity of having another low pressure fuel system to manage, improved engine efficiency and the cost were just a few of the variables.
My intent is to post from time to time when the opportunity presents itself and learn what I can to help make our products better in the future. Please know that I only frequent FTE once a week or so when workload permits and athough unfortuneately I'm unable to respond to every question or concern on the forum regarding the 6.7L or Super Duty, I will try to provide relevant information when/where I can (such as above) within the guidelines of the company. Typically I've found that hearing direct feedback from multiple owners on a particular topic/thread provides a good overview of what the good the bad and the ugly is.
Thanks for your time, have a great day!
-Paul
Disclaimer: I work at Ford, and this is my own opinion and is not the opinion of Ford Motor Company.
If you want to read a lot of great info about these engines, do a search for all posts by user "pbruckne".
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Cargo Master
Joined: Jul 2008
Posts: 2,584
Likes: 62
Thanks for bringing that post back, Tom.
This is a bit off-topic but pbruckne, vloney, cheezit (et al), bring a totally different level to the information here on FTE. I realize there are certain aspects they can't directly or completely comment on, but when the opportunity presents itself where they can provide quality information to "debunk" the myths out here, or otherwise set us straight, I know everyone else here on FTE would join me in a "thank you". I would hope that they have some behind-the-scenes workings with Rick, too.
This is a bit off-topic but pbruckne, vloney, cheezit (et al), bring a totally different level to the information here on FTE. I realize there are certain aspects they can't directly or completely comment on, but when the opportunity presents itself where they can provide quality information to "debunk" the myths out here, or otherwise set us straight, I know everyone else here on FTE would join me in a "thank you". I would hope that they have some behind-the-scenes workings with Rick, too.
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