I just did mine today, and I can notice a better ideling. Also my plug had a
green color to them, with some red mixed in? Anyone? Also one of the plug I
took out the porcelian was cracked on the electrode side. I know this wasn't
done during removal, because the cracked off area had the red and green
stuff on it. So I would definetly reccomend a change. Felt funny changing my
plugs at 6200 miles though...
Josh
http://dakota.jumpautos.com
>Date: Sun, 21 May 2000 09:33:58 -0500
>From: "Henry Hagemeier" <jhhagemeier@Msn.com>
>Subject: RE: DML: want better gas milage for your 4.7?
>I just did it yesterday. All you have to do is remove the Top Hat and a
>couple of bolts under the hat that hold the coolant lines in place. Then
you
>can then move the lines just enough to get to the two plugs under the
lines.
>I put in the Autolite APP5224's and it seems to run cleaner at low to mid
>range. Also the factory plugs do not have anti-seize. I am glad I changed
>them at 16K miles and did not wait longer, I could tell the threads were
>very dry while removing the plugs.
>Henry Hagemeier
>San Antonio
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