 Put a bottle of K-Seal in it because that could save that sensor because oil usually doesn't affect those sensors like coolant does. So if it's using any amount of coolant, put a bottle of K-Seal in it, especially with that small amount, that should seal that up. But the fact that those things are dying so fast, it makes you probably think you guys got something else going on. But our hunch is that that's getting polluted and that's causing you a lot of these problems. But there is further diagnosis that you could do to make sure all those circuits are correct.