i30 Owners Club
FUEL ISSUES & ECONOMY => PETROL => Topic started by: Wolvreen on August 29, 2023, 19:36:39
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Hi,
I have a 1.6 petrol i30 automatic. It’s done 93k miles. A few years ago my car changed from 36 mpg to 26 mpg. The only thing I can think of is a faulty O2 sensor or dirty injectors. Would these be flagged up on the OBD with alarms?
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Is that mpg per the onboard read out or have you calculated by monitoring fuel refills, full tank to full tank?
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Calculating from refills.