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Old 10-19-2017, 01:51 PM   #13
TKat13
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Join Date: Jun 2004
Location: DFW
Posts: 2,803
Re: Why is my Mach1 getting such horrible gas mileage??

Quote:
Originally Posted by thatyellowmach1 View Post
The car runs smooth, sometimes it will idle a little low. Over the summer I cleaned and regapped the spark plugs. My car has 75,000 miles on it, should they be replaced? And I will check the dip stick and get back to you if it smells like gas or not. Thanks for the help!
I never clean and gap... always gap and replace with new. (gap mine because I require a tighter gap over stock with my setup) But if your car is mostly stock, then just replace with new. I like NGKs. Less than 3.00 each.
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Darrell
Black '04 Mach 1
Track Times (bone-stock w/drs):60 ft - 1.90 | 1/8 - 8.67
(100 shot,E85,4:10s,Street tire):60 ft - 1.67 | 1/8 - 7.88
New build - 750rwhp; not track tested (yet)
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Tuned by Manny @ HPP
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