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


Registered: 01/31/06
Posts: 2646
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: 4752
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: 3004
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: 554
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: 2441
Loc: Nowthen, MN
+8643218764679 on Kroil.

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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: 12641
Loc: NE,Ohio
if kroil doesnt do it.. you usually need something more impressive... like a torch.
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2017 Jeep Cherokee Trailhawk V6

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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: 8652
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: 7668
Loc: Cincinnati, OH, USA
Seafoam's Deep Creep has worked pretty well for me.
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06 Ram 3500 CTD 4X4(FG Venturi), 93 GMC C3500 6.2, 89 F-450 7.3, 98 XJ 4.0(XG8A), 05 xB(XG3600), 15 Transit 3.7, 03 Merc Grand Marquis 4.6 2V(XG2)

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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: 8536
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: 2449
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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2011 F150 4x4 5.0L
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: 313
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: 4046
Loc: North Carolina
ATF + acetone.
_________________________
"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: 10974
Loc: Idaho
Originally Posted By: rooflessVW
ATF + acetone.
+1
_________________________
"Don't let your preconceived notions get in the way of facts."
Geoff Metcalf

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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: 218
Loc: KS
On fasteners that permit it.. Copious amounts of heat
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1997 Ford Taurus
2007 Honda Ridgeline
2003 Suzuki GZ250
1986 Suzuki Cavalcade
2014 Nissan LEAF (Gone)

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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: 3041
Loc: NJ
I use the WD40 rust penetrant. It's a special kind of WD40.
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Without data you're just another person with an opinion. W. E. Deming

2003 Corolla 250,000 miles
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