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#4049698 - 03/26/16 07:08 PM Best Penetrating Oil for Rusted Automotive Fasteners?
SubLGT Online   content


Registered: 01/31/06
Posts: 2513
Loc: Idaho
I have been using PB Blaster for dealing with moderately rusted automotive fasteners and rusted joints and splines. So far so good.

But are there better products out there, that every DIYer should have?

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#4049700 - 03/26/16 07:14 PM Re: Best Penetrating Oil for Rusted Automotive Fasteners? [Re: SubLGT]
Wolf359 Online   content


Registered: 04/27/12
Posts: 3460
Loc: MA
Kroil.

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#4049701 - 03/26/16 07:17 PM Re: Best Penetrating Oil for Rusted Automotive Fasteners? [Re: Wolf359]
JC1 Offline


Registered: 11/29/08
Posts: 2333
Loc: Oshawa, Ontario Canada
Mix of ATF and acetone.
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#4049704 - 03/26/16 07:19 PM Re: Best Penetrating Oil for Rusted Automotive Fasteners? [Re: Wolf359]
mehullica Offline


Registered: 08/19/09
Posts: 518
Loc: Modesto,CA
Originally Posted By: Wolf359
Kroil.
+100


Edited by mehullica (03/26/16 07:19 PM)

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#4049718 - 03/26/16 07:31 PM Re: Best Penetrating Oil for Rusted Automotive Fasteners? [Re: SubLGT]
KD0AXS Offline


Registered: 11/13/12
Posts: 2312
Loc: Nowthen, MN
+8643218764679 on Kroil.
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2000 John Deere 425-Rotella T6

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#4049726 - 03/26/16 07:45 PM Re: Best Penetrating Oil for Rusted Automotive Fasteners? [Re: SubLGT]
Rand Offline


Registered: 08/20/03
Posts: 11970
Loc: NE,Ohio
if kroil doesnt do it.. you usually need something more impressive... like a torch.
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#4049739 - 03/26/16 08:03 PM Re: Best Penetrating Oil for Rusted Automotive Fasteners? [Re: mehullica]
spasm3 Offline


Registered: 05/30/10
Posts: 7715
Loc: North Carolina
Originally Posted By: mehullica
Originally Posted By: Wolf359
Kroil.
+100


Kroil is the best i've used.
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#4049745 - 03/26/16 08:09 PM Re: Best Penetrating Oil for Rusted Automotive Fasteners? [Re: SubLGT]
bullwinkle Offline


Registered: 10/09/04
Posts: 6826
Loc: Cincinnati, OH, USA
Seafoam's Deep Creep has worked pretty well for me.
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#4049746 - 03/26/16 08:10 PM Re: Best Penetrating Oil for Rusted Automotive Fasteners? [Re: Wolf359]
Astro14 Online   content


Registered: 10/10/10
Posts: 7819
Loc: Virginia Beach
Originally Posted By: Wolf359
Kroil.


+1
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#4049750 - 03/26/16 08:11 PM Re: Best Penetrating Oil for Rusted Automotive Fasteners? [Re: SubLGT]
buck91 Offline


Registered: 04/17/12
Posts: 2299
Loc: West Michigan
Was never willing to pay the premium for kroil, finally broke down and bought a can last year. It really does seem significantly more effective than the pb blaster I used to use.

Liquid wrench works well, too. Not quite as effective as kroil.
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1996 Mustang GT 5spd/ragtop

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#4049772 - 03/26/16 08:36 PM Re: Best Penetrating Oil for Rusted Automotive Fasteners? [Re: SubLGT]
ejes Offline


Registered: 01/11/16
Posts: 281
Loc: Kansas
Kroil (Aerokroil) here as well. Have tried others (PB, WD-40, Liquid Wrench, etc.), but Kroil has always worked better.

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#4049780 - 03/26/16 08:42 PM Re: Best Penetrating Oil for Rusted Automotive Fasteners? [Re: SubLGT]
rooflessVW Offline


Registered: 12/24/11
Posts: 2842
Loc: North Carolina
ATF + acetone.
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"Zed's dead baby, Zed's dead."

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#4049788 - 03/26/16 08:47 PM Re: Best Penetrating Oil for Rusted Automotive Fasteners? [Re: rooflessVW]
CT8 Offline


Registered: 10/09/14
Posts: 9291
Loc: Idaho
Originally Posted By: rooflessVW
ATF + acetone.
+1

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#4049821 - 03/26/16 09:32 PM Re: Best Penetrating Oil for Rusted Automotive Fasteners? [Re: SubLGT]
DerbyDave Offline


Registered: 10/27/15
Posts: 181
Loc: KS
On fasteners that permit it.. Copious amounts of heat
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#4049858 - 03/26/16 10:25 PM Re: Best Penetrating Oil for Rusted Automotive Fasteners? [Re: SubLGT]
Leo99 Offline


Registered: 03/30/14
Posts: 2261
Loc: NJ
I use the WD40 rust penetrant. It's a special kind of WD40.
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