Washington, March 21--The Roosevelt strategy in the automobile labor crisis is to arrange a truce to last until the Wagner Bill is acted upon by Congress, observers believed tonight.

The administration knows the auto- mobile manufacturers will not voluntarily agree to any program permanently satisfactory to the American Federation of Labor. The feud between the automotive industrialists and the labor executives is too deep for that. Furthermore, the Weirton Steel Corporation case and other similar company union fights have made it obvious that a dispute revolving around this issue never is really settled by an employes' election.

Nevertheless, the administration goal is an agreement by both sides to hold government-supervised election in the automobile plants to decide which union the majority of the workers favor