Why is there black soot build up on Ecoboost tail pipe?
01-01-2012, 06:14 PM
#1
Why is there black soot build up on Ecoboost tail pipe?
I have noticed that almost every 3.5L
Ecoboost engine creates soot in the exhaust tail pipe. I was wondering why because my other trucks never did that, even after 90,000 miles. I know it has to be normal because all the 3.5L ecoboost engines do that. But I can't imagine that is a good thing. What does the combustion chamber look like.
Ecoboost engine creates soot in the exhaust tail pipe. I was wondering why because my other trucks never did that, even after 90,000 miles. I know it has to be normal because all the 3.5L ecoboost engines do that. But I can't imagine that is a good thing. What does the combustion chamber look like.
01-01-2012, 07:31 PM
#3
Senior Member
Search is your friend.
THere are many, many threads on this topic.
THere are many, many threads on this topic.
01-01-2012, 07:37 PM
#5
Originally Posted by gone postal
Search is your friend.
THere are many, many threads on this topic.
THere are many, many threads on this topic.
Im looking for some answers more common with the 3.5L ecoboost.
01-01-2012, 08:17 PM
#6
Senior Member
From "The Best Octane for the Ecoboost Thread" by DieselDawg
Originally Posted by EBinMT
2) Premium fuels usually have more detergents as well. most applications this will have no real benefit as regular grade usaully has more than enough detergent, but if you have seen the black soot in the EB tailpipe this may be a good investment.
personally I prefer a mid grade from my local Exxon. I used to deliver Exxon fuels and know that station has only a Regular and Premium tank. Their Mid grade is the same price as the regular and is a 50/50 blend of premium and regular. so I am getting a little better octane and more detergent for the same price.
Actually there are "Top Tier" fuel providers that supply fuel with higher than minimum EPA standards fo detergents in fuels...those Top Tiers suppliers put the same detergent formulation in every grade (for the most part).
As for the "black soot", I think it is more from the fact that the Ecoboost does not have an EGR (mechanical) and uses the engines own characteristics :
This EcoBoost truck engine also features twin independent variable camshaft timing, or Ti-VCT, to help save fuel. Ti-VCT provides extremely precise variable – yet independent – control of timing for intake and exhaust valves. Ti-VCT also reduces emissions, especially in situations when the throttle is partially open.
***http://media.ford.com/article_displa...le_id=33260***
This means it will run a bit rich to reduce NOx for emissions
Originally Posted by EBinMT
2) Premium fuels usually have more detergents as well. most applications this will have no real benefit as regular grade usaully has more than enough detergent, but if you have seen the black soot in the EB tailpipe this may be a good investment.
personally I prefer a mid grade from my local Exxon. I used to deliver Exxon fuels and know that station has only a Regular and Premium tank. Their Mid grade is the same price as the regular and is a 50/50 blend of premium and regular. so I am getting a little better octane and more detergent for the same price.
Actually there are "Top Tier" fuel providers that supply fuel with higher than minimum EPA standards fo detergents in fuels...those Top Tiers suppliers put the same detergent formulation in every grade (for the most part).
As for the "black soot", I think it is more from the fact that the Ecoboost does not have an EGR (mechanical) and uses the engines own characteristics :
This EcoBoost truck engine also features twin independent variable camshaft timing, or Ti-VCT, to help save fuel. Ti-VCT provides extremely precise variable – yet independent – control of timing for intake and exhaust valves. Ti-VCT also reduces emissions, especially in situations when the throttle is partially open.
***http://media.ford.com/article_displa...le_id=33260***
This means it will run a bit rich to reduce NOx for emissions
01-01-2012, 09:59 PM
#7
I have noticed that almost every 3.5L
Ecoboost engine creates soot in the exhaust tail pipe. I was wondering why because my other trucks never did that, even after 90,000 miles. I know it has to be normal because all the 3.5L ecoboost engines do that. But I can't imagine that is a good thing. What does the combustion chamber look like.
Ecoboost engine creates soot in the exhaust tail pipe. I was wondering why because my other trucks never did that, even after 90,000 miles. I know it has to be normal because all the 3.5L ecoboost engines do that. But I can't imagine that is a good thing. What does the combustion chamber look like.
My 5.0L does the same thing.............but less with 93 octane
Trending Topics
01-01-2012, 10:05 PM
#8
Soot is a byproduct of direct injection. On my 2010 Speed3, the soot permanently stained the chrome tipped exhaust pipes black in just 15,000 miles. Which is amazing because I ran that car through that wash at least once a week. Many people on the MazdaSpeedForums were literally painting their pipes black to make
them look more palatable.
them look more palatable.
01-01-2012, 10:27 PM
#9
So this is nothing to be concerned about in the longrun. Basically it wont affect the performance or longevity of the engine? For me $43,000 is a big investment, I don't have $$$ growing on my tree out back. This truck has to last me years like my Nissan Titan. So far Im 110% satisfied with my Ecoboost.
01-01-2012, 10:34 PM
#10
So this is nothing to be concerned about in the longrun. Basically it wont affect the performance or longevity of the engine? For me $43,000 is a big investment, I don't have $$$ growing on my tree out back. This truck has to last me years like my Nissan Titan. So far Im 110% satisfied with my Ecoboost.
