- Feb 26, 2006
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Dear all, I'm driving a 2003 Hyundai Elantra 1.8 DOHC. My question is how far you can go with a full tank of Shell fuel worth RM +-90 ? When i take over the car from my dad i send my car to service. B4 i can run aprox 500-600 km but after sending for service with semi-syn oil the mileage is worsen by 20% .... So i would like to know how can this happen as the foreman can't give a better explanation as b4 my engine oil is store more than 5000 km and as long as 7 months.... Need opinions ... Thank you !