Question about 2012 Hyundai Veloster

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Mileage After 1st oil change, gas mileage dropped significantly.

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  • L Way Feb 18, 2012

    2012 Hyundai Veloster



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The factory tends to use lightweight oil,to increase fuel mileage,
not good for the life of the engine,if heavier oil was put in place,mileage could drop,but not much,maybe 1 mpg,are you sure it's not because of
extended warm up times or more idling than usual?

Posted on Feb 18, 2012

  • L Way Feb 19, 2012

    Has to be the oil change. It was immediate, has been consistent, and all other factors are are the same: driving habits, warm-up, idle time, speed/distance, temperature of weather, tire pressure, etc... Mileage dropped 5-7 mpg. I've also, since used only Cheveron gasoline. Mechanics say converter is burning HOT - thus excessive carbon output. But OMG - it's EXTREME!! My tailpipes are TOTALLY black. Definitely running rich. This, and a drop in mileage, can't be normal.



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