<strong>Yahoo Message Number: 80706</strong>Our coach is a 38' 2004 Intrigue with the Cummins ISL400 engine. I was under the assumption it did not have a coolant filter. In a recent email to the previous owner about what antifreeze was used he mentioned changing of the coolant filter. <br/>I have looked all over in the engine compartment and cannot locate it. <br/>Can someone point me in the...