Hi All My Vauxhall Vectra, 04 reg with 58k on the clock and serviced twice so far on 20k and 40k (cam belt changed too) has started to display InSp (or couldbe 1n5p) sign on it's clock. It's due another service on 60k, so I was going leave it for another month or so as it drives very smoothly...What does this sign mean? My service booklet/manual say that if the car is due it's service, it displays a spanner like symbol, which I have seen previously. Thanks