You might not need as much home heating oil to heat your radiators, but if you rely on it to heat your water for a bath or shower then you’ll definitely still ned to top up with home heating oil in the spring. Make sure you are using your oil most effectively for this. There should be a setting on your boiler which will allow you to use the oil to heat only the water, and if you need the heating on for a shorter period of time you can adjust the programme settings to reflect this.
Don’t forget to edit the timer settings too, as the time you spend at home in the spring differs due to holidays, school term breaks or bank holiday weekends.