Green fuels have been blamed for almost cutting Salisbury and Exeter off from rail services to London.
South Western Railway has been forced to run a reduced timetable after biofuels used to cut carbon emissions clogged up train engines’ fuel filters.
Many diesel-powered trains have been run on biofuels as part of a push towards net zero in recent years.
Biodiesel is a renewable, biodegradable fuel manufactured domestically from vegetable oils, animal fats, or recycled restaurant grease.
But it is understood that engines were blocked by algae, which forms “organic growths” in train fuel tanks. The algae forms if biofuel sits unused for a period of time and is not treated with chemical additives.
OK, nice idea, doesn’t work then. Next!