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18/02/2023 10:03 am
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If you had a car that the manufacturer suggest using premium fuel, would it be ok to use mid grade and just add octane booster?
2 Answers
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18/02/2023 10:21 am
I do have a car that the manufacturer suggests using premium fuel and I use mid-grade in it with no octane booster. It makes no noticeable difference unless you lean really heavily into the loud pedal in which case you can feel the engine control system pulling back a little.
Modern engine management systems are very good at adapting to different fuel grades but each model car can react differently. If your car really needs the higher octane to run properly you're better off just using the correct fuel with lab-certified octane rating instead of fooling around with aftermarket additives.
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