The Problem
Poor Fuel Economy Is Usually a Symptom of Something Else
A sudden or gradual increase in fuel consumption isn't just an inconvenience — it's usually a sign that the engine isn't running as efficiently as it should. Several completely different faults can cause the same outcome: the engine burning more fuel than necessary.
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Before assuming there's a fault, consider whether your driving pattern has changed — more short journeys, more town driving, or cold weather all affect consumption. But if nothing has changed and you're using noticeably more fuel, a fault is likely.
Why It Matters
Don't Guess — The Wrong Fix Costs More
⚠️ This symptom could mean several different things
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Multiple different faults can cause increased fuel consumption — the cause determines the fix
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The most likely cause varies significantly by vehicle make, model, fuel type and mileage
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Fixing the fault often saves more in fuel costs than the repair itself
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Poor economy faults rarely improve on their own — they tend to gradually worsen
Your Personalised Report Includes
What's Causing It — Specific To Your Car
The exact cause depends on your make, model, year, mileage and full symptom picture. Your MotorLoom report identifies the most likely faults for your specific vehicle — ranked by probability.
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Your Personalised Diagnosis Includes:
Most likely cause of the increased fuel consumption for your exact vehicle
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Whether there are other symptoms likely developing alongside this
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UK repair costs — independent garage vs main dealer
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What to check yourself before booking a garage
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Questions to ask a mechanic before authorising any work
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Full MOT risk assessment
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Specific to your exact vehicle · Delivered in under 60 seconds
Personalised Diagnostic Report
Find Out Exactly What's Wrong
Tell us about your vehicle and symptoms. We'll identify the most likely causes and tell you what it should cost to fix — before you go anywhere near a garage.
Likely causes ranked by probability for your car
UK repair costs — independent garage & main dealer
Urgency rating — safe to drive or act now?
MOT risk assessment
Word-for-word questions to stop garages overcharging
Printable report to take with you
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One-time · No account needed · No subscription
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