Of course I have no way of knowing where your leak is but I just soldered a leak in my ( Mitsubishi's) radiator. A little investigating revealed the core was copper. I simply cut away a small section of fins to reach the hole and used a small propane torch and flux core plumbing solder......gently heated the area around the hole until it was hot enough to melt the solder and ran a little over the hole/area. Fast, easy, cheap and worked great. I was going to try Bar's Leaks but had the solder on hand and wanted to get it done and knew it would work. I too have used Bar"s Leaks in the past for small automotive leaks with success.