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Old 05-17-2012, 01:07 PM   #1
GinGerRaGe410
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Autolite 103 installed.

Just did my usual oil change(Ford motor craft semi), And also put in auto lite 103 copper. I notice a small difference. The engine does sound and feels "easier". The idle and acceleration seem to be alot smoother.I dont know if it is new part syndrome lol or it really does seem like the response time is a little better as well?


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Old 05-18-2012, 10:43 AM   #2
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I just put them in mine also and the idle is a million times smoother .
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Old 05-18-2012, 11:43 PM   #3
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just so you know autolite 103's are copper. copper has very high volts. but super weak they will go out real quick. i work at a parts store.
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Old 05-19-2012, 01:09 AM   #4
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AP103 are the same just platinum
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Old 05-19-2012, 09:57 AM   #5
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Quote:
Originally Posted by Blaz3 View Post
just so you know autolite 103's are copper. copper has very high volts. but super weak they will go out real quick. i work at a parts store.
Most of us that switch to copper plugs are aware of their longevity.. They are pretty cheap so we dont mind swapping them out more often, not to mention its a pretty easy job on a focus.
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Old 05-19-2012, 09:59 AM   #6
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Good point they are cheap
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Old 05-20-2012, 08:21 PM   #7
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There's a huge sparkplug thread somewhere on here, I think they said the Autolite's ended up being the best.
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Old 05-21-2012, 08:16 AM   #8
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I didn't notice any smoothnes change, but I wasn't listening for it. Tach is worthless in this vehicle anyway - give me something accurate!

I did notice a MPG bump though - so that is awesome...
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Old 05-21-2012, 10:42 AM   #9
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What plugs did you had before putting autolite 103's ???
I have the 104's and it's great. Never had the 103's.
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Old 05-21-2012, 12:10 PM   #10
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103s are typically good for forced induction, I run 104s.
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