Help! Decreased gas milage after major tuneup
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Junior Member
Joined: Dec 2001
Posts: 22
Help! Decreased gas milage after major tuneup
I had a 60k tuneup recently for my '96 I30. I averaged before the tuneup around 23 mpg, but after it's only 19.6 mpg. What could be the causes? Any info will be appreciated. Thanks.
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