Fuel vs electric · UK fleets
Diesel, petrol or electric?
The honest trade-offs for UK fleets — running costs, charging, clean-air zones and tax — so you can match the powertrain to the job.
Diesel & petrol
Combustion
Pros
- Quick to refuel — minutes at the pump, no planning or depot chargers needed.
- Long range as standard, suited to motorway work and rural routes.
- Lower upfront cost, and a wider choice of used stock.
- Proven servicing network — most workshops can handle them.
Cons
- Fuel is the biggest running cost, and prices move with the market.
- Clean-air zones: diesels face daily charges in London ULEZ and other city zones.
- Company car and van tax (BIK) rates climb year on year for combustion engines.
- More moving parts — filters, DPFs, EGRs — so servicing costs run higher.
Battery electric
Electric
Pros
- Cheap to run per mile, especially charging overnight on a depot tariff.
- Exempt from London ULEZ and most clean-air zone charges.
- Low company car tax — BIK rates stay far below combustion equivalents.
- Fewer moving parts — no oil, clutch or exhaust — so maintenance is lighter.
Cons
- Higher upfront cost, though grants and residual values are improving.
- Range and charging depend on infrastructure — depots need chargers installed.
- Charging takes longer than refuelling, so duty cycles need planning.
- Cold weather cuts real-world range; payloads and towing reduce it further.
Most UK fleets end up with a mix — electric for town and depot-based routes where charging is easy, combustion for long-range and heavy work. ZEV mandate rules, BIK rates and clean-air zones are all still moving, so the balance shifts year to year. Our fleet advisor can suggest a mix for your routes, and the fleet desk confirms current pricing and lead times.
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