Recent Topics
Let's Talk Porsche 911
by john_pifer - 02/21/20 02:51 AM
CLEARANCE ALERT O'Reilly's Mobil Super Oil
by GMguy84 - 02/21/20 01:27 AM
No more poulan / weedeater at walmart.
by jakewells - 02/21/20 12:44 AM
1991 Land Cruiser FJ80
by CCI - 02/20/20 09:57 PM
Gas price spread
by Chris142 - 02/20/20 09:28 PM
Need an Ecoboost Oil
by kstanf150 - 02/20/20 08:47 PM
2007 sedona
by macdole99 - 02/20/20 08:29 PM
USB-C, USB 3.0, 3.1Gen1, 3.1Gen2 Confusion.
by SubLGT - 02/20/20 08:12 PM
Apple Air Pro 2 tablet, How to send a link by email
by JLawrence08648 - 02/20/20 07:56 PM
Needed A Truck
by MParr - 02/20/20 07:21 PM
Battery Charger/Desulfator
by DBMaster - 02/20/20 06:45 PM
STP 0W-16 found in NC Autozone
by mv6845 - 02/20/20 06:20 PM
Cats
by Anduril - 02/20/20 06:12 PM
Are Onan oil filters now Fleetguard?
by atikovi - 02/20/20 05:57 PM
Car overheating under different conditions.
by MichaelRS - 02/20/20 04:39 PM
2008 CR-V AT Question
by Gebo - 02/20/20 04:18 PM
2019 Sienna
by s2krunner - 02/20/20 04:01 PM
Newest Members
Grennx, coverage, Bubbabighatt, AAIRCraig, Jason454
70763 Registered Users
Who's Online Now
25 registered members (bbhero, avi1777, bachman, deanm11, 5 invisible), 1,101 guests, and 18 spiders.
Key: Admin, Global Mod, Mod
Forum Statistics
Forums67
Topics301,733
Posts5,201,593
Members70,763
Most Online4,538
Jan 20th, 2020
Donate to BITOG
Print Thread
Hop To
Galvanic corrosion #5167113 07/21/19 09:20 AM
Joined: Feb 2011
Posts: 7,643
L
LeakySeals Offline OP
OP Offline
L
Joined: Feb 2011
Posts: 7,643
I'm wondering if this is an example of galvanic corrosion. The brass has turned blue near the steel tank and near the stainless (I think) one way check valve.

[Linked Image]
[Linked Image]


06 Escalade 6.0L LQ9 AWD 170k M1 5w30
03 Maxima 3.5L 170k Maxlife HM 10w30
05 Malibu Classic 2.2 111k M1 5w30
06 Altima 2.5L 167k unk
Re: Galvanic corrosion [Re: LeakySeals] #5167120 07/21/19 09:31 AM
Joined: Mar 2011
Posts: 2,063
S
spackard Offline
Offline
S
Joined: Mar 2011
Posts: 2,063
Looks chemical-related.
From another website:

Equation 1: 4Cu + O2 → 2Cu2O [red to pink]
Equation 2: 2Cu2O + O2 → 4CuO [black]
Equation 4: 2CuO + CO2 + H2O → Cu2CO3(OH)2 [“malachite,” dark green to blue]

Re: Galvanic corrosion [Re: LeakySeals] #5167123 07/21/19 09:34 AM
Joined: Apr 2009
Posts: 733
W
walterjay Offline
Offline
W
Joined: Apr 2009
Posts: 733
That is not galvanic corrosion.

Re: Galvanic corrosion [Re: LeakySeals] #5167144 07/21/19 09:59 AM
Joined: Apr 2015
Posts: 683
M
Mainia Offline
Offline
M
Joined: Apr 2015
Posts: 683
Chemical, and nothing to worry about.


2018 Lowered Hyundai Kona AWD 1.6T
2014 Toyota Rav4 AWD
2005 Honda Civic
Re: Galvanic corrosion [Re: LeakySeals] #5167146 07/21/19 10:00 AM
Joined: Aug 2003
Posts: 14,470
R
Rand Offline
Offline
R
Joined: Aug 2003
Posts: 14,470
thats just normal copper/brass corrosion.

This is the bad stuff.

IMG_20190625_135216.jpg
Last edited by Rand; 07/21/19 10:05 AM.

2019 Jeep Cherokee Trailhawk 2.0T
2020 Hyundai Elantra "Value Edition"
Re: Galvanic corrosion [Re: LeakySeals] #5167168 07/21/19 10:23 AM
Joined: Sep 2017
Posts: 720
M
MasterSolenoid Offline
Offline
M
Joined: Sep 2017
Posts: 720
Op - I'd say NO.

Galvanic Corrosion needs three things to begin:
1) Two different metals
2) They have to be touching
3) Moisture present

There is a whole science behind understanding it.
Therefor, I take it seriously when doing auto & home repairs.
There is also a chart showing how similar (or different) metals are to each other / affecting their rate of galvanic corrosion.

One example: FORD attaching aluminum panels onto steel frames.
They must use a spacer as a separator.


Last edited by MasterSolenoid; 07/21/19 10:34 AM.

2002 Ford Ranger / bought new
2 Wheel Drive
3.0 Liter Engine
- - - - - - - - - - - - - -
Four basic premises of writing:
Clarity, Brevity, Simplicity, and Humanity.
Re: Galvanic corrosion [Re: LeakySeals] #5167487 07/21/19 04:41 PM
Joined: Jun 2003
Posts: 35,265
E
eljefino Offline
Offline
E
Joined: Jun 2003
Posts: 35,265
Doesn't look too different from mine. I wouldn't worry.

https://www.bobistheoilguy.com/forums/ubbthreads.php/topics/5058458/1

Re: Galvanic corrosion [Re: eljefino] #5167896 07/22/19 08:18 AM
Joined: Feb 2011
Posts: 7,643
L
LeakySeals Offline OP
OP Offline
L
Joined: Feb 2011
Posts: 7,643
Originally Posted by eljefino
Doesn't look too different from mine. I wouldn't worry.

https://www.bobistheoilguy.com/forums/ubbthreads.php/topics/5058458/1

I noticed you use a cycle stop valve. Have you ever been to the Terry Love plumbing forum? I asked basic questions over there and the minute they find out I have a monodrive they blame everything on that and they try to sell me a cycle stop valve LOL


06 Escalade 6.0L LQ9 AWD 170k M1 5w30
03 Maxima 3.5L 170k Maxlife HM 10w30
05 Malibu Classic 2.2 111k M1 5w30
06 Altima 2.5L 167k unk
Previous Thread
Index
Next Thread

BOB IS THE OIL GUY® Powered by UBB.threads™