Buyers may be wasting money on diesel cars 27 January 2009 by Parkers Team Diesel models may not be the big money saver you think Initial purchase price outweighs any fuel saving Use Parkers petrol vs. diesel calculator to work it out Hundreds of thousands of drivers choosing diesel new cars could be wasting money instead of saving it, according to research by Parkers. Increases in the cost of diesel at the pump and price rises for new diesel cars are now preventing drivers from saving money by choosing diesel. Many popular models need high six figure mileage to recoup the extra expense and some diesels always cost more than the petrol alternative at current forecourt prices. Several years ago, the price of diesel on the forecourt was within a penny or two of unleaded. But recently the price of diesel has been significantly higher than petrol making it more difficult to save money choosing a new diesel car. Parker's has cut through the confusion with a new calculator that shows whether diesel will save you money.Go to www.parkers.co.uk/cars/petrol-vs-diesel/ and choose the new car you are interested in. Depending on what you have chosen, the calculator will choose a similar priced petrol or diesel alternative from the same range. It will then tell you much of a saving the diesel is likely to make per 1000 miles, and how far the car will have to travel to recoup any premium if the diesel version is more expensive. In a few cases the diesel will be both cheaper to buy and to run, and occasionally no diesel can be found that's cheaper to run than the petrol car selected. On cars where there is parity between the new prices for petrol and diesel models - such as the Jaguar XF - your first tank of fuel will take you further in the diesel model so you start saving money straight away. Petrol model Diesel model Diesel premium Mileage to break even Audi A3 S/back 1.8 TFSI SE S/back 2.0 TDI SE £300 23,719 Audi A4 Avant 1.8 TFSI SE 2.0 TDI (143) SE £1350 88,578 Audi A6 2.8 FSI S Line auto 2.7 TDI S Line auto £750 41,639 BMW 318i SE saloon 318d SE saloon £2690 287,356 BMW 530i SE auto 530d SE auto £355 Diesel auto won’t break even BMW X5 xDrive30i SE auto xDrive30d SE auto £365 25,268 Citroen C4 1.6 VTi SX 5dr 1.6 HDi (110) SX £1500 88,212 Citroen C5 1.8i VTR+ 4dr 1.6 HDi VTR+ £1000 42,372 Ford Focus 1.6 Style 5dr 1.6 TDCi Style 5dr £1000 45,132 Ford Mondeo 2.0 Ghia 5dr 2.0 TDCi 5dr £1650 93,291 Ford S-MAX 2.5 Titanium 2.2 TDCi Titanium £550 21,715 Honda Civic 1.8i-VTEC EX 5dr 2.2i-CTDi EX 5dr £1300 137,278 Honda Accord 2.0i ES GT saloon 2.2i-DTEC ES GT saloon £1800 143,632 Honda CR-V 2.0i-VTEC ES 2.2i-CTDi ES £1300 108,904 Jaguar XF 3.0 V6 Premium Lux 2.7d Premium Luxury £0 0 Mazda2 1.3 TS2 3dr Mazda2 1.4D TS2 3dr £1275 172,391 Mazda6 1.8 TS 5dr 2.2d TS (125) 5dr £979 85,923 Mercedes-Benz C200K SE auto C220 CDI SE auto £1025 172,179 Mercedes-Benz CLS350 CGI CLS320 CDI -£700 Diesel cheaper to buy and run MINI Clubman Cooper (Chili) 1.6D Cooper (Chili) £1160 99,531 Nissan Micra 1.4 Acenta 3dr 1.5 dCi (86) Acenta 3dr £860 52,029 Nissan Qashqai 2.0 Tekna 2.0 dCi Tekna £1400 149,379 Peugeot 207 1.6 Sport 3dr 1.6 HDi (110) Sport 3dr £1100 97,838 Peugeot 308 1.6 VTi S 5dr 1.6 HDI (110) S 6sp 5dr £1500 96,133 Renault Clio 1.2 TCE Dyn 5dr 1.5 dCi Dynamique 5dr £950 76,717 Renault Megane Coupe 1.6 Exp 1.5 dCi (106) Expression £1450 53,702 SEAT Leon 1.4 TSI Stylance 1.9 TDI Stylance £530 54,366 Toyota Yaris 1.3 VVTi-TR 5dr 1.4 D-4D TR 5dr £1000 84,376 Toyota RAV4 2.0 VVT-i XT-R 2.2 D-4D XT-R £1250 74,178 Vauxhall Corsa 1.4 SXi 3dr 1.3 CDTi 90 SXi 3dr £290 33,796 Vauxhall Astra 1.6i Club 1.7 CDTi Club £1285 123,614 Vauxhall Insignia 1.8 SE 4dr 2.0 CDTi SE 4dr £1500 90,850 VW Golf 1.4 TSI SE 5dr 2.0 TDI (110bhp) SE 5dr £970 61,787 VW Passat 2.0T Sport 2.0 TDI 170 Sport £80 4053 Volvo V50 1.6S 1.6D DRIVe S £2315 78,185 * Break even points change daily, as fuel prices fluctuate. For the latest information click here. Tweet Related articles on Parkers Driverless cars: everything you need to know Winter driving - your ultimate guide Parkers car glossary: motoring jargon explained What is ESC (electronic stability control)? What is DSG (direct shift gearbox)?