WOW! this stuff really works!! rust buster

A friend at the local GM dealership dropped off a free can of rust penetrant a wile back for me to try out. with serious doubts I finally got around to trying it out last week on a 3/8 bolt that was rusted into a cast iron block, and even with my utmost caution I had twisted off the top of the bolt. I sprayed it down with this product and left for the weekend. this morning when I came in I easily removed the broken remains with vise grips. it came out so easily I'm sure I could have used regular pliers.
I've used PB Blaster, kroil, ATF and acetone, and quite a few snake oil mixtures in a can, but I've NEVER seen one that worked like this stuff. I'm stocking up, as anything that works this good is bound to be taken off the shelf soon.
GM Rust Penetrant and inhibitor (heat valve lubricant). part # 188862627

Cheers,
Russ

 

X2. Worked on a frozen heat riser for a 235 Chevy. I use it on every bolt on or near an exhaust system or stubborn ones.

A bit pricy at $10+ a can. And my local dealership (Knapp in Houston) keeps a modest stock.

Mike

 

True it might be a bit pricy but if a guy only uses it when he really needs to and for what it is intended for a can should last a while and make life easier. I'll have to hit the local GM dealer and see if they stock it.

 

Can you use it on a Ford? or will it turn to glue?
Thanks, i wrote down the part nuber and will get some, $10 for something like that ios cheap, i've seen kroil for $27 a can.

 

I think it's OK to use on a Ford but it will cost you twice as much for the same results.

 

This stuff has been around for many years. I worked a a Chevy dealership in the early 70's and it was available then. I forgot about it, thanks for the reminder!

 

I've been using Kroil lately.. great stuff but doesn't seem to be that much better than SeaFoam deep creep, PB Blaster, etc. I'll try this stuff out..... thanks for the heads up.

 

Well, I work in a Chevrolet/Buick dealership, and the local Ford dealership buys it from us, so I guess Fords are too stupid to know the difference.

I've used it for years on tough cases, and it's been my experience that if it doesn't work, it's time for the torches.