Wot refrigerant was used it the escorts cosworth
All so i will ask at work to day for you . as we do air for a liveing but big stuff running on R407C AND R410A and retor fitting the old R22 units i will see wot i can find out for you . when you need it preshering/vacing/gasing up my work mate has the kit to get on to a car a/c so i should be abull to help you out there mart