Over the past year my car's gas mileage has been.

Tiny
NBKRUSE
  • 1998 BUICK REGAL
  • 156,000 MILES

Over the past year my car's gas mileage has been slowly getting worse. Right now its getting 20.3 mpg and the car is starting to chug when I reach appox. 50 mph.
I had the spark plugs replaced last summer. If I replaced the fuel filter and started putting real unleaded gas in, would that fix the chugging? Would a transmission fluid flush help? Any other suggestions?

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Thursday, March 21st, 2013 AT 3:50 AM

1 Reply

Tiny
HMAC300
  • EXPERT
  • 45,785 POSTS

Scanfor codes and check fuelpressure first

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Thursday, March 21st, 2013 AT 2:06 PM

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