Spark Plugs & More
04-03-2009, 05:02 PM
#1
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Join Date: Aug 2008
Location: Nova Scotia
Posts: 116
Spark Plugs & More
My 04 GT is creeping up on 100,000KM and I was wondering if I should change the plugs...
If So...
Should I stick with Ford Plugs or go with another brand?
Some say you should always stick with your factory brand plugs
And of course
Others swear by aftermarket plugs
Also, is there any other maintenace that should be done at 100,000?
If So...
Should I stick with Ford Plugs or go with another brand?
Some say you should always stick with your factory brand plugs
And of course
Others swear by aftermarket plugs
Also, is there any other maintenace that should be done at 100,000?
04-03-2009, 05:34 PM
#2
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Join Date: Feb 2008
Location: Northumberland County
Posts: 108
wouldn't hurt to do your fuel filter and air filter if you don't have an aftermarket one. As for plugs, from what I hear stick with the Motorcraft factory plugs. I used champions when I did mine, and havent had any issues at all. Can't go wrong with factory though.
Last edited by 20gt00; 04-03-2009 at 05:41 PM.
04-03-2009, 06:41 PM
#6
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Join Date: Jan 2005
Location: Ontario
Posts: 17,778
Stock plugs are good,you will get some longtivity out of them when sticking with them.Or if you want to go with copper plugs,AutoLite 764's are also recommened for our 4.6L for the best performance,but they will be needed to be changed more frequently.
04-03-2009, 07:18 PM
#7
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Join Date: Aug 2008
Location: Nova Scotia
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I will change the fuel filter (ford), plugs (ford) and coolant (prestone)
I am going to leave the diff fluid till I get my new gears
When I change the coolant I guess I should flush it as well right?
With something like Prestone SUPER FLUSH as the coolant that is in the car might be original as I am the second owner and the car is 5 years old
I am going to leave the diff fluid till I get my new gears
When I change the coolant I guess I should flush it as well right?
With something like Prestone SUPER FLUSH as the coolant that is in the car might be original as I am the second owner and the car is 5 years old
04-03-2009, 08:50 PM
#9
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Location: Cochrane, Alberta
Posts: 1,310
If you're running original plugs at 100,000km's I'd say change them. From my experience (I know its not a Mustang) but I had a 00' F150 4.2 V6 that had 120,000km's on it before the plugs were changed and what a difference new plugs made in fuel economy. I also did fuel and air filter and that also helped a lot so I'd recommend those as well.
