As long as diesel doesn't go up disproportionately as more people switch over - basic laws of supply and demand dictate that as more people switch away from petrol supply will be greater and it may become less price sensitive (I can live in hope!).
Get a gas conversion!
that started happening about 5 years ago
10 years time we'll be buying battery and hydrogen powered cars
I switched from an mkII fr tdi to a mkII cupra purely for the fact that standard diesel is 10-12p per litre more than standard petrol where i live, and as i don't do many miles it made sense for me to switch over.