olds is just trying to make you do more work than needed. get methanol or lighter fluid, (naphtha), clean the foam, let it dry then put air filter oil on it, stick it back on the engine. the reason i like methanol is that the foam has oil in it, its a petroleum base to use a water base to clean it just doesn't make since. just my idea, iam NOT telling people to do it my way. its just my idea.