annoying black soot on the tail pipes any way to fix this?
Well known byproduct of GDI/GTDI technology. You could switch to a low volatility full synthetic oil, that should help a lot, not having crankcase vapors going out the tailpipe. I believe the MDesign CAI would also work in your favor from all reports.
I was going to switch to royal purple and im also installing my kn typhoon intake 2day ...
Pics & video(s) please after ...
lol ok ...
My tips get dark also, been running purple since the car was new. Has 28k and still gets black.
The black soot that was pretty heavy during the summer months seems to be gone for me. Can't correlate the absence with anything for sure, but it's been 3 weeks of looking with zero soot. Wondering if the condensation is freezing on the pipes and allowing the crap to sail right by.
Rich
I have had essentially no soot in the tailpipe tips since installing the MDesign CAI... I used to have them turn black in a couple of days.
The carbon soot is from fuel. It is related to the stratified burn that takes place during cold start.
And also very likely from WOT as the mixture riches very quicky. It is a phenomenon found on all DI equipped vehicles.
Fuel volatility can likely make it intensify or subside, which explains any seasonal variations in the soot deposits.
Quote from: IHeartGroceries on January 10, 2015, 12:36:05 PM
The carbon soot is from fuel. It is related to the stratified burn that takes place during cold start.
And also very likely from WOT as the mixture riches very quicky. It is a phenomenon found on all DI equipped vehicles.
Fuel volatility can likely make it intensify or subside, which explains any seasonal variations in the soot deposits.
Would adding a splash of e/85 help reduce the soot also? Didn't start mixing until winter blend hit us and am wondering about its effect. Something I won't personally be able to see for months right now.
Rich
Actually, I did read a study which suggested E blends do effectively reduce soot and NOx emissions. Although, for their study, they used E85 exclusively. So, I'll bet you might note a reduction in soot by blending in a couple or three gallons.
Quote from: IHeartGroceries on January 10, 2015, 01:25:27 PM
Actually, I did read a study which suggested E blends do effectively reduce soot and NOx emissions. Although, for their study, they used E85 exclusively. So, I'll bet you might note a reduction in soot by blending in a couple or three gallons.
Thanks for the info!
Rich
Has anyone seen this video regarding black soot buildup. http://www.syntheticwarehouse.com/bypass.htm (http://www.syntheticwarehouse.com/bypass.htm) ,there is a video at the bottom of the page,hope it helps.
Interesting link! Though the solution for DI engines seems to have some type of alcohol in the combustion mix (one of the byproducts being water vapor), it would be interesting to see if the soot is contaminating the oil to any significant degree as well.
I plasti dipped my tail pipes black back in April because I was tired of cleaning them every other day. The dip has held up good to the heat. No fading or bubbling.
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black soot comes from running rich and unburned fuel passing the cats
Amsoil signature 0-30 and E-85 keep my tips shiny.
MDesign CAI stopped mine.
You're using a zero weight motor oil?
E/85? No soot since I've been mixing.
Rich
Quote from: BiGMaC on March 07, 2015, 12:56:50 PM
MDesign CAI stopped mine.
Say what? Mind running that by me
Quote from: IHeartGroceries on March 07, 2015, 12:57:34 PM
You're using a zero weight motor oil?
That oil is great stuff, along with any of the Amsoil ss line.
The "0" is only applicable for the extreme cold so once it's warmed up then it's the same as any 30 weight. It's meant to cover an operating range from very cold to warm incase you are driving in those temps during 1 oil change
Really if the temps were 70 degrees all year you wouldn't need multi viscosity oil
Quote from: FoMoCoSHO on March 07, 2015, 01:06:19 PM
Quote from: IHeartGroceries on March 07, 2015, 12:57:34 PM
You're using a zero weight motor oil?
Yup, 5k intervals.
FoMoCo you are wasting a lot of the that oil with a 5k interval. The base number would still be really high at 5k but I know where you are coming from. It's hard to force yourself to go more than that.
Quote from: ajpturbo on March 07, 2015, 02:48:56 PM
Quote from: IHeartGroceries on March 07, 2015, 12:57:34 PM
You're using a zero weight motor oil?
That oil is great stuff, along with any of the Amsoil ss line.
The "0" is only applicable for the extreme cold so once it's warmed up then it's the same as any 30 weight. It's meant to cover an operating range from very cold to warm incase you are driving in those temps during 1 oil change
Really if the temps were 70 degrees all year you wouldn't need multi viscosity oil
Yup, I want the 0 for fast flow during Ohio winters....we will be keeping the SHO for a while and we all know how much wear occurs during cold starts.
0 is superior for cold starts in any environment IMHO. Faster flow = faster protection
Quote from: ajpturbo on March 07, 2015, 02:51:32 PM
Quote from: FoMoCoSHO on March 07, 2015, 01:06:19 PM
Quote from: IHeartGroceries on March 07, 2015, 12:57:34 PM
You're using a zero weight motor oil?
Yup, 5k intervals.
FoMoCo you are wasting a lot of the that oil with a 5k interval. The base number would still be really high at 5k but I know where you are coming from. It's hard to force yourself to go more than that.
Yeah I know but with DI oil dilution I'm just more comfortable with these intervals.
I'm gonna get my next change tested to see where I'm at.
I'm gonna swap out that tranny fluid at the same time ;)
Quote from: FoMoCoSHO on March 07, 2015, 02:55:00 PM
Quote from: ajpturbo on March 07, 2015, 02:51:32 PM
Quote from: FoMoCoSHO on March 07, 2015, 01:06:19 PM
Quote from: IHeartGroceries on March 07, 2015, 12:57:34 PM
You're using a zero weight motor oil?
Yup, 5k intervals.
FoMoCo you are wasting a lot of the that oil with a 5k interval. The base number would still be really high at 5k but I know where you are coming from. It's hard to force yourself to go more than that.
Yeah I know but with DI oil dilution I'm just more comfortable with these intervals.
I'm gonna get my next change tested to see where I'm at.
I'm gonna swap out that tranny fluid at the same time ;)
Waste or not... makes me feel better... high compression and turbos = performance. but also increased blowby... I never go longer than 5K between changes and my dealer has no problem doing that on my prepaid 70K mile maintenance agreement. It is also very dusty here which also spurs me on. I take them the Amsoil signature... They do the rest.
Quote from: BiGMaC on March 07, 2015, 03:06:14 PM
Quote from: FoMoCoSHO on March 07, 2015, 02:55:00 PM
Quote from: ajpturbo on March 07, 2015, 02:51:32 PM
Quote from: FoMoCoSHO on March 07, 2015, 01:06:19 PM
Quote from: IHeartGroceries on March 07, 2015, 12:57:34 PM
You're using a zero weight motor oil?
Yup, 5k intervals.
I hear ya, but you would be surprised by an oil analysis. The group IV/V synthetic base stock oils are basically indestructible and the old oil change intervals don't apply anymore...LOL I'm just saying. I do the same thing and change at 5K but I just say this because some don't know that you can go more...I know but I choose to waste so I'm not sure what's wrong with me.
FoMoCo you are wasting a lot of the that oil with a 5k interval. The base number would still be really high at 5k but I know where you are coming from. It's hard to force yourself to go more than that.
Yeah I know but with DI oil dilution I'm just more comfortable with these intervals.
I'm gonna get my next change tested to see where I'm at.
I'm gonna swap out that tranny fluid at the same time ;)
Waste or not... makes me feel better... high compression and turbos = performance. but also increased blowby... I never go longer than 5K between changes and my dealer has no problem doing that on my prepaid 70K mile maintenance agreement. It is also very dusty here which also spurs me on. I take them the Amsoil signature... They do the rest.
Of course this thread was started by theOP to ask about sooty tailpipe tips, not oil... Back on track...
I can't think of a way in which grade might effect tailpipe emissions anyway. Volatility might.
I haven't seen the shiny of my tailpipes in months. I've just accepted them as blacked out now. Lol
Dirty car, clean tips.....
Show off.
I do typically blend between E15 and E20, I've never noticed a difference.
Funny story...
I didn't realize the inner section of the outlets were polished literally for the first year of ownership. They were solid black the day I took delivery and I never knew otherwise. Lol
Base fuel is Shell 93.
I wonder if that makes a difference?
Glad I found this thread because the black tips are driving me nuts on both my wifes XSport and my SHO.
The next oil change will be with the Amsoil 0w and I'm also going to polishing the tips with Mothers and adding a good coat of wax. Its amazing how bad they can get in the winter and how hard it is to clean them.
The soot on my pipes has not been there since going with a small e/85 mix. Something I used to wipe clean daily, I haven't had to do once in 6 months now. Now it's only done to get dirt off.
Rich
MDesign CAI stopped mine... strange but true.
I cleaned the tips on my SHO for the first time in perhaps 10 months or so...since last spring. About 7K miles driven in that time. Many of those miles with a mild E blend (15 to 17ish). Have to admit, it was less severe than when I polished them up before, between purchase date and last spring, when I wasn't blending E.
Definitely reduced the soot. But didn't eliminate on my SHO.
Strangely since ive installed the meth kit the only time i get black soot is after the wife has had her out for a couple days and i know she purposely keeps it out of meth range(and boost for that matter)
ive tried everthing to no avail soot soot n more soot
Quote from: TTSport15 on June 30, 2015, 08:01:38 AM
ive tried everthing to no avail soot soot n more soot
Added a little E85? Meth kit? MDesign intake?
With a tune these engine run a little rich by design. No way except meth to prevent it.
Just another note about MDesign. Makes no sense at all to me, but I clearly have had less soot since installing about 4 months ago. I Would not believe it if I did not experience it. I Don't understand at all.....but there is a clear correlation between the install and less soot.
Quote from: TSS on June 30, 2015, 11:08:59 AM
Just another note about MDesign. Makes no sense at all to me, but I clearly have had less soot since installing about 4 months ago. I Would not believe it if I did not experience it. I Don't understand at all.....but there is a clear correlation between the install and less soot.
maybe more/less air to change the AFR? That's is pretty weird.
Quote from: glock-coma on June 30, 2015, 12:06:21 PM
Quote from: TSS on June 30, 2015, 11:08:59 AM
Just another note about MDesign. Makes no sense at all to me, but I clearly have had less soot since installing about 4 months ago. I Would not believe it if I did not experience it. I Don't understand at all.....but there is a clear correlation between the install and less soot.
maybe more/less air to change the AFR? That's is pretty weird.
Had the same experience. I did begin to see soot again as the less corn/nonoxygenated summer fuel became available again. It is still less, but fuel blend has an effect
Switched from store brand "synthetic" to penzoil platinum around the same time our winter blends of gas arrived. Have noticed extreme decrease in tip carbon. Not sure of it was the oil or ethanol but I want to test out ethanol. 14 x sport. Any ideas how much e85 to blend in with the e10 from the pump?
This calculator may help
http://www.georgebelton.com/E85Calculator.php (http://www.georgebelton.com/E85Calculator.php)
Untuned, probably should not go above E18-20 final ratio.