Close
Car Questions
RepairPal is your advocate for car care advice and guidance

Running Rough

(1999 Hyundai Tiburon)
in Holtsville, NY on July 23, 2009
Hello, My daughter recently purchased her 5speed, 99' Tiby with 58,000 miles and its in fine shape. After her first week of driving it she went to the pump and filled up with regular unleaded. Right now the car is barely running. Could this be a coinsidance and there is another problem or do these 16 valve engines get cranky without higher octane unleaded. Thanks you so much. PS, If it is a fuel issues, is it best to run it through or should I turn the car over and empty the tank? LOL
Displaying 2 answers & 1 comments
Popular Answer
on May 10, 2010
uh anyone still looking at this they only run on 91 and up replace the plugs and fuel filter and it will run right
on July 23, 2009
Every car made to be driven in the USA has to run just fine on 87 regular. It is required by the EPA. Is there a Check Engine Light On? Best to have a good diagnostic tech inspect your car. Are you sure that the gas from the gas station was not dirty. It does happen. Good Luck!
on January 22, 2011
Yep u ride the short buss!!!!!!!!
RepairPal estimates are guaranteed at over 2,000 quality certified locations nationwide. Learn more

Similar Questions

View answers to similar questions from RepairPal's community of auto experts and enthusiasts.
Replace coils , tune up , oil change , fuel pump , master cylinder , valve cover seals . But my car is still idiling ...
Message center rings and has a low idle and sounds a little sputter from the tail pipe but still runs great
Didn't find what you were looking for?