[reggit]

Hmm,

Before I got the bi-fuel, I had a dual-fuel Vauxhall Corsa - I used to switch that to petrol about once a year so it didn't go stale.

With the Volvo I find I have to chuck £10 in the tank every few months. I don't do a particularly high mileage, and was blaming the warm up cycle of a comparatively large engine, mine switches after about 3/4 mile.

Looks like a theme is developing ...