The Stovebolt Site Forums The Shop Area Engine Shop Tiny holes in oil pan

I second the acid flux and 50/50 solder or lead free. If you attempt to braze, it will burn through the thin steel, if you use SilFos or similar Silver/Phosphorus HVAC braze rod, you will have to heat the steel to a dull red and probably burn through. High silver content silver solder may work due to a slightly lower temperature but you will need to use the paste flux designed for steel and dissimilar metals.