Well, going from the RealMPG section of this site, today's fuel prices from petrolprices website, and your 6k miles per annum.
A 1.2 puretech petrol will average 39mpg. That's 154 gallons of fuel, todays price is 120ppl (5.45 per gallon) = £839 on fuel per annum.
The 1.6 blue HDi 120 diesel will average 51mpg. 118 gallons of fuel, current cost 122ppl (5.54 per gallon) = £654 on fuel per annum
So the diesel would cost £185 per annum less in fuel. Or roughly a saving of £550 over 3 years
No idea if the diesel car needs Adblue, extra cost if it does. A single EGR failure or if the DPF starts to get clogged, and all those savings vanish.
In addition, the diesel car costs roughly £1k more than the equivalent petrol car.
If the legislation continues to move the way it is (against diesel) then you may well find in a few years that the car is unsellable to a considerable part of city dwellers, if a diesel. So diesels won't hold their value so much.
All told, for your annual mileage, I'd go petrol. Keep it simple, less likely to be clobbered by future legislation and pollution taxes.
|