Car Clinic: After clearing petrol out of my diesel car's fuel system, should I pay for optional additive?

Car Clinic: I put petrol in my diesel car...


When I put petrol in my diesel Audi A5, Fuel Doctor drained the tank. I declined to pay £20 for an additive to prevent “dangerous fumes..."
Eco engines are among the most polluting according to new emissions index

Eco engines are among the most polluting according...


A new independent ratings system for vehicle emissions suggests that cars marketed as having some of the cleanest petrol engines available...
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Letters of the week, January 10


This week: Land Rover Defender, keyless ignitions, signalling, street lighting and new year's motoring resolutions
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Magic per gallon: the exciting cars you can afford...


With prices at the pumps tumbling, car buyers can afford once again to go for excitement over fuel economy.
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Christmas cheer for drivers: cut-price petrol falls...


Good news for the millions of motorists who will be driving home for Christmas this year: petrol prices have fallen to under £1 a litre, the lowest...
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Letters of the week: October 18


This week; the price of fuel, the emissions scandal, hydrogen filing stations, dazzling dipped headlights and, as ever, cyclists
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One Audi owner's tale of oil misery


After 10 years, two continents and tens of thousands of miles, the time had come to part with my trusty Renault Scénic
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Letters of the week, March 8


This week: drug driving, the fuel debate and tiny indicators
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Do pollen/intake vehicle filters remove harmful exhaust...


Q. I am worried about exhaust fumes from other vehicles entering the cabin of my BMW 3-series and Jaguar S-type. Will the pollen/intake filter remove...
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Does the fuel on sale at British forecourts have to...


Q. When our VW Golf had a recent service, the garage found a minor problem with erratic acceleration. The technicians asked us where we bought our...
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News: Shropshire garage thought to be best in UK for...


A small independent garage in rural Shropshire is thought to be selling Britain’s cheapest petrol, undercutting far bigger supermarkets...
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Fuel prices: How cheap is your local garage?


Nominate your local garage and its price for a litre of unleaded. The cheapest will win our prestigious Golden Pump award later in the week