You could also use red Hi-Tack gasket adhesive. It sprays on and tacks up when it cures, similar to the hylomar sealer mentioned above, but being a spray on may make it easier to apply and in thinner coats. We use it to station head gaskets, intake manifold gaskets, water jacket plate gaskets, fuel pump seals, water pump gaskets, oil pan gaskets, etc on diesels as well as other various around most lubricant/coolant/fuel exposed surfaces. Not sure about steering fluid or ATF's but would be fine against petroleum based fuels. Use it liberally on threaded fittings when teflon tape or pipe sealant wont do. It's resistant to most any fluid inside of an engine and doesn't harden either. Stuffs cheap, think we sell it at $4 a can