CITROEN C5 RCRHRH II HDi 2.0L RHR (DW10BTED4) DOHC 16v Turbo Diesel Direct Inj. 4cyl 100kW Hatchback FWD [09/04 - 01/08]. XTRA COOL GOLD is suitable for use in all vehicles not requiring anti-freeze protection, both petrol and diesel.