UK Landlord Forum / Life

I currently do all my own repairs, gas safe inspections, marketing etc etc. For this I use a commercial vehicle ( Nissan Navara pick up ). I only have three properties very close to my home and so do very few miles but the Nissan costs me a fortune. I currently account for the truck at 45 pence a mile but this amounts to very little when really I need to keep the truck for emergencies etc. Would it be acceptable to account for the truck at 100 per cent of cost with it being a commercial vehicle ?