Subaru Discussion Forums

Go Back   ScoobyNet > Technical / Subaru Modifications > General Technical
Sign in using an external account
Register Forgot Password?

Welcome to ScoobyNet.com!
Subaru forum
Welcome to the ScoobyNet.com Subaru forum.

You are currently viewing our forum as a guest, which gives you limited access to view most discussions and access our other features. By joining our community, at no cost, you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Registration is free, fast and simple, so please join our community today!

If you have any problems with the registration process or your account login, please contact contact us.

Reply
 
 
 
 
Thread Tools Search this Thread
Old 09 September 2007, 23:35   #1
Shark Man
Scooby Regular
 
Trader Score: (0)
Join Date: May 2004
Location: Ascended to the next level
Posts: 7,500
Default Pink/red deposits on spark plugs.....

I know its not an issue, but I'm curious as I look at countless cars with normal deposits on the plugs, then up pops one with pinkish/red coated plugs, so...

Anyone who has had pink spark plugs please post what fuel brand fuel they were using and what additives (if any). Obviously bear in mind they could be stained from using a previous brand of fuel or additives, so if the car was bought second hand and still has the same plugs or you have switched brands, please state so.


And if anyone knows what chemicle causes the pinkness, feel free to educate me; As one of side studies is finding out which brand fuels contain what chemicles in their additives to boost/maintain octane/combustion cleanliness.

Last edited by Shark Man; 09 September 2007 at 23:40.
Shark Man is offline   Reply With Quote
Old 10 September 2007, 07:41   #2
Butty
Orange Club

 
Trader Score: (2)
Join Date: Oct 2000
Location: MY06 STi Spec D
Posts: 5,246
This is my Scooby.  To set up your own Scooby, go to your user cp, and click 'Edit Settings'.
Default

Probably Manganese from an octane booster.

Nick
Butty is offline   Reply With Quote
Old 10 September 2007, 08:04   #3
[Davey]
Agnostic Fundamentalist
 
Trader Score: (0)
Join Date: Feb 2006
Location: Berkshire
Posts: 3,334
Send a message via MSN to [Davey]
This is my Scooby.  To set up your own Scooby, go to your user cp, and click 'Edit Settings'.
Default

I bought a turbo which had a light pink dusting inside the exhaust turbine housing which I thought was a bit strange!
[Davey] is offline   Reply With Quote
Old 10 September 2007, 09:58   #4
james-wrx
Scooby Regular
 
Trader Score: (0)
Join Date: Aug 2006
Posts: 666
Default

Quote:
Originally Posted by Shark Man View Post
I know its not an issue, but I'm curious as I look at countless cars with normal deposits on the plugs, then up pops one with pinkish/red coated plugs, so...

Anyone who has had pink spark plugs please post what fuel brand fuel they were using and what additives (if any). Obviously bear in mind they could be stained from using a previous brand of fuel or additives, so if the car was bought second hand and still has the same plugs or you have switched brands, please state so.


And if anyone knows what chemicle causes the pinkness, feel free to educate me; As one of side studies is finding out which brand fuels contain what chemicles in their additives to boost/maintain octane/combustion cleanliness.

I ran tesco 99 Ron and had pinky plugs!!
james-wrx is offline   Reply With Quote
Old 10 September 2007, 11:20   #5
JohnD
Scooby Regular
 
Trader Score: (5)
Join Date: Apr 2000
Location: Havering, Essex
Posts: 6,027
Default

V-Power too! although octane booster eg Millers will give a pronounced orange coating.
JohnD
JohnD is offline   Reply With Quote
Old 10 September 2007, 13:09   #6
jasonius
Skippy-di-do-da..!

 
jasonius's Avatar
 
Trader Score: (1)
Join Date: Oct 2004
Location: Half way up
Posts: 4,792
This is my Scooby.  To set up your own Scooby, go to your user cp, and click 'Edit Settings'.
Wink

Optimax-V power + Millers OB=

Click the image to open in full size.

More orange than pink IMHO.

Will be pulling plugs very soon that have been using only V-power+OB to see if there's any difference. I doubt it as the orange comes from the manganese in the OB, as already said..
jasonius is offline   Reply With Quote
Old 10 September 2007, 15:05   #7
Shark Man
Scooby Regular
 
Trader Score: (0)
Join Date: May 2004
Location: Ascended to the next level
Posts: 7,500
Default

Cheers guys...keep them comming.

The car I had pink plugs on (not a Subaru, not that it makes a difference) was running on Shell 95Ron for the past 4 to 5 tanks. Before that Is anyones guess as I didn't have the car before that (although its only 12months old).

Will get the pics later (looks like my home PC has crashed or the internet is down as I can't remote acesss it, so will have to wait )
Shark Man is offline   Reply With Quote
Old 10 September 2007, 20:28   #8
Fuzz
Scooby Regular
 
Trader Score: (0)
Join Date: Jul 2002
Location: Under your bonnet
Posts: 9,190
Send a message via MSN to Fuzz
Default

Defo Octane booster IMO... eats plugs a little quicker than normal but nothing to worry about.

Andy
Fuzz is offline   Reply With Quote
Old 10 September 2007, 21:17   #9
P1 FEK
Scooby Regular
 
Trader Score: (1)
Join Date: Jun 2006
Posts: 552
Default

How often do the plugs need changing?
P1 FEK is offline   Reply With Quote
Old 10 September 2007, 22:25   #10
JohnD
Scooby Regular
 
Trader Score: (5)
Join Date: Apr 2000
Location: Havering, Essex
Posts: 6,027
Default

Quote:
Originally Posted by jasonius View Post
Optimax-V power + Millers OB=

Click the image to open in full size.

More orange than pink IMHO.

Will be pulling plugs very soon that have been using only V-power+OB to see if there's any difference. I doubt it as the orange comes from the manganese in the OB, as already said..
Those plugs look very dirty! How many miles?
JohnD
JohnD is offline   Reply With Quote
Old 11 September 2007, 00:34   #11
Shark Man
Scooby Regular
 
Trader Score: (0)
Join Date: May 2004
Location: Ascended to the next level
Posts: 7,500
Default

here we go:

Click the image to open in full size.


I've since been told that previous fuel shouldn't make that much difference and that the deposits would be burnt off after several tank fulls of different fuel.


So thats Shell 95Ron....strange as they must have changed it recently as last time I pulled the plugs on my Impreza they were normal (and that also ran on Shell 95ron from the same petrol station) although maybe shell have chnaged their 95ron as well, like they did with opitmax to Vpower? Hmmm
Shark Man is offline   Reply With Quote
Old 11 September 2007, 01:56   #12
Fuzz
Scooby Regular
 
Trader Score: (0)
Join Date: Jul 2002
Location: Under your bonnet
Posts: 9,190
Send a message via MSN to Fuzz
Default

Could be your camera but thats some weird *** looking plugs
Fuzz is offline   Reply With Quote
Old 11 September 2007, 08:24   #13
[Davey]
Agnostic Fundamentalist
 
Trader Score: (0)
Join Date: Feb 2006
Location: Berkshire
Posts: 3,334
Send a message via MSN to [Davey]
This is my Scooby.  To set up your own Scooby, go to your user cp, and click 'Edit Settings'.
Default

Look normal to me? If not a bit "Festive"
[Davey] is offline   Reply With Quote
Old 11 September 2007, 09:47   #14
Shark Man
Scooby Regular
 
Trader Score: (0)
Join Date: May 2004
Location: Ascended to the next level
Posts: 7,500
Default

Yeah, the wear and level of deposits look normal, no eveidence of tracking or arching on the the base either. But that is the actual colour, I kid you not

No real problem, plugs were just inspected to confirm the mixture was ok, the inner cylinders are possibly slightly leaner than the outers at the time the engine was last run. Other than that nothing abnormal, apart from they are pink!

I wonder what colour o2 sensors are


But seeing I'm very nosey at what fuel suppliers put in their fuel, I'd like to investigate what it is, how it affect the flame fronts and colorific values etc.

Last edited by Shark Man; 11 September 2007 at 09:50.
Shark Man is offline   Reply With Quote
Old 11 September 2007, 22:19   #15
jasonius
Skippy-di-do-da..!

 
jasonius's Avatar
 
Trader Score: (1)
Join Date: Oct 2004
Location: Half way up
Posts: 4,792
This is my Scooby.  To set up your own Scooby, go to your user cp, and click 'Edit Settings'.
Default

Quote:
Originally Posted by JohnD View Post
Those plugs look very dirty! How many miles?
JohnD
~12k (car @24k), posted them up on here when changed and although it was said they were tired looking and needed changing all seemed well.

The first (OEM) set I put up on here were similar, although had more metallic deposits on them, which may have been due to them being in from new, or so I was told..!

Will be pulling current set soon, so will also be comparing them..
jasonius is offline   Reply With Quote
Old 12 September 2007, 11:28   #16
Scoobyspanners
Scooby Regular
 
Trader Score: (0)
Join Date: Sep 2004
Posts: 290
Default

http://www.autolite.com/pdf/PlugTips.pdf

Colour looks ok to me, but gaps are way to big!! Off the top of my head cant remember what gaps to set on new plugs, but a search of site or a Google will let you know what gaps to set on the new ones...........
Scoobyspanners is offline   Reply With Quote
Old 12 September 2007, 11:45   #17
Shark Man
Scooby Regular
 
Trader Score: (0)
Join Date: May 2004
Location: Ascended to the next level
Posts: 7,500
Default

Gaps are 1.02mm as per manufacturer's specs. A tad on the tight side for a modern n/a engine but the CR is 10.9:1, so it expected.

Cheers for the link.
Shark Man is offline   Reply With Quote
Old 14 September 2007, 22:09   #18
jasonius
Skippy-di-do-da..!

 
jasonius's Avatar
 
Trader Score: (1)
Join Date: Oct 2004
Location: Half way up
Posts: 4,792
This is my Scooby.  To set up your own Scooby, go to your user cp, and click 'Edit Settings'.
Default Latest plugs

Just changed these after 11k (engine done 33k):

Click the image to open in full size.

Click the image to open in full size.

To me these look better than the previous 2 sets I've removed (@12k & 24k), the latter of which is shown earlier in this thread.
jasonius is offline   Reply With Quote
Old 12 July 2014, 20:15   #19
kev mac
Scooby Regular
 
Trader Score: (0)
Join Date: May 2003
Location: croydon
Posts: 35
Default pink plugs

i use tesco 99 octane, and have used the halfors twin pack with injector cleaner in first tank full then booster 2nd tank full, just changed plugs 2day and the center core is red but rest is a normal darker sooty color, plugs are PFR6B, changed them as car had a lack of boost made no differance tho still lack of power... any 1 got any ideas y this is had subaru garage look at it and they could find nothing dont no how good the garage is tho, kinghams south croydon.. would luv suggestions anyony, cheers kev mac
kev mac is offline   Reply With Quote
Old 12 July 2014, 20:15
 
 
 
Reply

Tags
additives, colour, deposit, deposits, millers, orange, petrol, pink, plug, plugs, power, red, shell, spark, tesco


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off
Forum Jump



All times are GMT +1. The time now is 22:17.


Important - Opinions expressed are not necessarily the opinions of ScoobyNet or any individuals directly or indirectly involved in this website or the companies and individuals associated with it. No responsibility is taken or assumed for any comments or statements made on this or any associated or relating bulletin board. Your personal information will be kept private except to comply with applicable laws or valid legal reasons.
Email Backups

LinkBacks Enabled by vBSEO 3.5.2 © 2010, Crawlability, Inc.