My 2004 1500 Nomad developed a small oil leak coming from the gasket on the top of the engine. The mechanic said he would have to remove the engine to replace it. It's a pricey repair. My question is, since it is such a small leak is there a recommended sealant I could add to the motor oil that may stop the problem?

The mechanic told me this is a common problem with the 1500.