1988 Ford Motorhome on Biodiesel

I'm a 70 year old disabled person and just got myself a ford motor home year 1988. It as a 2500cc engine and onlu done 33000 miles. Could some one tell me if it's safe to run this on bio diesel it as a lucas cav pump. Please let me know. In my last van i put £10 Diesel and £12 bio diesel and that was fine.