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#4525263 - 09/24/17 09:34 PM Corrosion Test
buck91 Offline


Registered: 04/17/12
Posts: 2449
Loc: West Michigan
So in the spirit of DIY Guy's gun oil test, I'm doing a little mini at-home corrosion prevention test of a couple of garage lubes I had laying around. Unfortunately I did not have room for everything I wanted to test, but many of them HAVE been tested. My goal was to provide a little home comparison information for my own decisions. As such, THIS TEST WILL NOT STAND UP TO RIGOROUS SCRUTINY. Please feel free to enjoy any results but it is nothing more than a quick, diy, at home comparison.

To begin with I took a used front brake rotor (Ford OE part, possibly 80k miles but remarkably little wear), sanded it down by hand with some coarse wet/dry paper and cleaned it off real good with non-chlorinated brake cleaner. There are a few dents and divots which aren't perfect but overall it should do well for this test. I then divided it into eight parts to test the following (In clockwise fashion from the top):

1. PP 5w30
2. Chevron Supreme 10w30
3. Kano Microil
4. Tri-Flow Superior Lubricant, drip bottle
5. Boeshield T9, drip
6. Fluid Film, non-aersol
7. Fluid Film, aerosol
8. Mobil 1 ATF
Added:
9. Super-Lube Silicone Oil, small area on rotor hat
10. Control, the rest of the rotor hat (which was sanded and prepped along with the braking surface)

All samples were applied in the same fashion, by wetting a piece of blue shop towel and "buffing" onto the rotor surface. No further treat was done (no wipe off, no heat treat, ect). I would say that the "buffing" on didn't seem to leave a very heavy coating but felt analogous to how I would wipe down any gun part which didn't specify a "run wet" type of condition (i.e. my glock rails have more oil but my shotgun receiver has about this amount).

At this point in the test, the samples are sitting in a non-climate controlled garage in 90+F daily high temps and high humidity. I have seen tools rust in a few weeks if not wiped down. Unsure the "best" way to progress from here. A good long term test would be to just leave the rotor unmolested for a few months and see what holds up best. This would be a great test for storage applications. Alternatively, I could move it outside into any type of spot ranging from primarily sunny (weather permitting) to shady and damp. It is currently early fall in Michigan, so the weather will be (or should be) rapidly cooling and becoming wetter. Open to input. Pics below.
_________________________
2011 F150 4x4 5.0L
1996 Mustang GT 5spd/ragtop

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#4525265 - 09/24/17 09:36 PM Re: Corrosion Test [Re: buck91]
buck91 Offline


Registered: 04/17/12
Posts: 2449
Loc: West Michigan
Pics of initial setup. Remember this is pretty informal.


_________________________
2011 F150 4x4 5.0L
1996 Mustang GT 5spd/ragtop

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#4525288 - 09/24/17 10:08 PM Re: Corrosion Test [Re: buck91]
SOHCman Offline


Registered: 03/29/10
Posts: 1286
Loc: USA
cool, looking forward to results!
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If you want to do the whole "I'm a complete drop-kick" thing properly, they're the cars you drive, complete with the "doof-doof" sound system, loud exhaust, low profile tires and so on. -B320i

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#4525312 - 09/24/17 10:34 PM Re: Corrosion Test [Re: buck91]
SuperDave456 Offline


Registered: 10/29/08
Posts: 2473
Loc: Dallas, Texas
Sounds like a cool test.
I guess you now get to take 1 pic a month.

Then at the end of 6-12 months you get to do a lot of detailed pics and write up.

If you are really bored you can go longer than 12 months.

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#4525315 - 09/24/17 10:38 PM Re: Corrosion Test [Re: buck91]
JHZR2 Offline



Registered: 12/14/02
Posts: 41805
Loc: New Jersey
Will you keep the blue tape on to try to prevent one section from segregating into another?

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#4525636 - 09/25/17 10:16 AM Re: Corrosion Test [Re: JHZR2]
Kira Offline


Registered: 08/19/10
Posts: 5263
Loc: Champlain/Hudson Valley
Looking forward to the "results" too.

Upon rotating my wheels for the first time I was amazed how much white crud there was.
I used a wire wheel to decrud where rotor and alloy wheel touched.

I carefully sprayed the rotor-to-wheel mating surfaces with 5-56 in order to stave off such corrosion.
I'll tell you how that works when next I rotate.

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#4525709 - 09/25/17 11:55 AM Re: Corrosion Test [Re: buck91]
Rolla07 Offline


Registered: 11/05/11
Posts: 4740
Loc: MTL, CANADA
Outside in winter will be a test id like to see!
_________________________
2007 Corolla Red Pearl 155k miles
PP 0w20 & ST 4967


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#4525844 - 09/25/17 02:21 PM Re: Corrosion Test [Re: buck91]
billt460 Offline


Registered: 03/30/15
Posts: 4416
Loc: Glendale, Arizona
Brake rotors are a good test medium. They really LIKE TO RUST! When I wash my vehicles, by the time I get them dried off, the rotors are covered with a nice light coat of rust. Just from sitting there for 15 minutes after rinsing the wheels. I swear, you can actually watch them rust, sitting in the driveway. I've never seen anything made from metal rust so fast in my life!

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#4525877 - 09/25/17 02:53 PM Re: Corrosion Test [Re: buck91]
Linctex Offline


Registered: 12/31/16
Posts: 6178
Loc: Waco, TX
Use a misting bottle to apply uniform, light moisture occasionally.
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(Re:VOA)"it's nearly impossible to actually know the particular additives that are in there at what concentrations."

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#4525892 - 09/25/17 03:06 PM Re: Corrosion Test [Re: billt460]
Kamele0N Offline


Registered: 02/09/15
Posts: 2051
Loc: Slovenia
Originally Posted By: billt460
Brake rotors are a good test medium. They really LIKE TO RUST! When I wash my vehicles, by the time I get them dried off, the rotors are covered with a nice light coat of rust. Just from sitting there for 15 minutes after rinsing the wheels. I swear, you can actually watch them rust, sitting in the driveway. I've never seen anything made from metal rust so fast in my life!


Next time when you will buy new discs...try to buy OEM/quality ones...

ATE Pagid etc tend to rust less then cheapo no name ones wink
_________________________
2011 Hyundai i30 1.4 CVVT Shell Helix Ultra 5w40
1997 Toyota Landcruiser KZJ95 3.0 TD various 10w40

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#4525921 - 09/25/17 03:37 PM Re: Corrosion Test [Re: Kamele0N]
billt460 Offline


Registered: 03/30/15
Posts: 4416
Loc: Glendale, Arizona
Originally Posted By: Kamele0N
Next time when you will buy new discs...try to buy OEM/quality ones...


All of my rotors ARE OEM. I've never changed them. They came with the vehicle.

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#4526316 - 09/26/17 12:36 AM Re: Corrosion Test [Re: buck91]
Popsy Offline


Registered: 05/10/15
Posts: 896
Loc: Frogland / Brittany
I only buy corrosion resistant rotors when possible (generally not available for rear rotors unfortunately). I put ATE Powerdiscs on my old Fiat, they aren't rusting, and they somewhat improved the feeling when braking smile
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96 Barchetta, Motul 300V 5W40 | 98 Barchetta, Quartz 9000 energy 5W40
05 Forfour 95, SHU 0W40 (gf's car) | 10 Colt Ralliart, 300V 0W40

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#4526816 - 09/26/17 02:59 PM Re: Corrosion Test [Re: buck91]
AMC Offline


Registered: 10/17/10
Posts: 893
Loc: South Eastern, CT
Cool test!

Here are the results: 1st place: Boeshield
2nd place: Fluid film liquid
3rd place: fluid film aerosol
4th place: Tri-flow
grin2
_________________________
11 Chevy Silverado - PP 5w-30
10 Ford Focus - QSAD 5w-20
14 Yamaha Super Tenere - Delo 15w-40

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#4526818 - 09/26/17 03:02 PM Re: Corrosion Test [Re: AMC]
SatinSilver Offline


Registered: 01/24/08
Posts: 10182
Loc: OH
Any pictures please??? Thank you.

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#4526820 - 09/26/17 03:03 PM Re: Corrosion Test [Re: buck91]
billt460 Offline


Registered: 03/30/15
Posts: 4416
Loc: Glendale, Arizona
Here ya' go. One of the best....... WD-40.

http://www.brownells.com/.aspx/lid=10700...t-Preventatives

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