yooper
SILVER Star
Toyopeen (Toyota High Performance Penetrating Lubricant is the official name) blows PB Blaster away. Kroil does too. I have a VERY rusty FJ62 and I go through a LOT of penetrating oil. I've used just about every brand on the market, and my current technique is to use some brake or carb cleaner to blast away grease and dirt followed by alternating applications of Kroil and Toyopeen. It's like magic. Kroil penetrates better but the Toyopeen is very slippery. Previously stuck nuts and bolts turn off amazingly easy and smooth. I've broken off very few bolts since I started the combination technique.
You can get Kroil by mail order: http://www.kanolabs.com and Toyopeen at the dealer: part number 00530-1PL00

You can get Kroil by mail order: http://www.kanolabs.com and Toyopeen at the dealer: part number 00530-1PL00