While India has successfully front-loaded its E20 (20% ethanol, 80% petrol) rollout ahead of schedule, there are questions over mileage drops and potential engine wear in older, non-compliant vehicles ...
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How to fix P0171 code

P0171 is a diagnostic trouble code that means the engine’s air-to-fuel mixture on Bank 1 is too lean, with too much air ...
Before hybrids became the norm, these four cars showed just how quickly the technology was evolving.