i get off road sulfer at times this does not harm a tier two motor right, it just stinks.

would a 80% diesel and 20% vegetable oil be  a good call, it polutes less.

tell me your thoughts - brian

A call to the engine manufacture would be in order.Web links and e-mails to them would be in ones best interest.Somewhere in this forum I read of a person in Ca.had real problems over tier 2 engines.I believe it made acpa notes as well.