View Full Version : Best penetrating oil EVAR

07-30-2012, 06:24 PM


I've never seen penetrating oil work this good. Just sprayed a rusty ass turbo down (putting in a new CHRA) and it was sizzling as the rust ran down in rivulets :hyper:

There was so much rust on the bolts the damn wrench didn't even want to fit, came off like butter with a brass brush after letting it sit for a minute.

Just ordered me a few aerosol cans for home use on exhaust bits. :)

That is all.

07-30-2012, 06:37 PM
You just now finding out about Kroil? Poor soul ;)

07-30-2012, 10:21 PM
Kroil is the shit - all I use for releasing bolts.

07-30-2012, 10:34 PM
I think we had a thread posted about this at one time. 50 percent acetone and 50 percent ATF was supposed to be the best. 2nd Kroil. I will still use Kroil the citris smell makes it nice to use in the garage.

07-30-2012, 11:28 PM
I need to get myself some Kroil. I find that PB Blaster works good, and I have some special funky blend I bought from Napa that works good too.

07-30-2012, 11:31 PM
I have never used Kroil, I may try it sometime.

07-31-2012, 12:14 AM
All I have is WD-40 and a small torch, I'll have to get some of this stuff.

07-31-2012, 06:44 AM
Holy misleading thread title... :D

07-31-2012, 01:57 PM
Jelly - Asians

Lube - White people

Url- Black people

The Captain
08-01-2012, 12:47 AM
Astroglide. Best penetrating lube EVAR.

08-01-2012, 01:15 AM
Yep, I've been using AeroKroil and their Penephite for a while. It is amazing stuff!

08-01-2012, 05:48 AM
Yeah, I've been using it for a couple years now. A co-worker recommended it and it has been awesome.

08-01-2012, 11:30 PM
Going to have to find some of this stuff.

08-04-2012, 05:40 AM

08-04-2012, 03:55 PM
I have never heard of the Kroll - I'll have to get some - as I do not find PB-Blaster to be anything better than Liquid Wrench or WD-40 - all of which seem to require much soaking time..

By far - the best stuff I ever found was "Manifold Heat Control Valve Solvent" - which I bought from either Mopar or GM car dealers. This stuff consisted of graphite particles suspended in some sort of a petroleum base. It had a foamy action - and especially if heated to boil it in, it would loosen the toughest of bolts. No longer available though - as cars no longer have exhaust manifold heat control valves.

No matter what you use - heat really helps - so long as the bolt is far enough away from the fuel system.

08-04-2012, 04:57 PM
^ Or plastics/rubber.

I nearly lit one of my rear bushings on fire...

08-05-2012, 07:28 PM
I hear it works great for an engine soak too.