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2012 3.8 Spark Plug Replacement

StealthyKDM

Hasn't posted much yet...
Joined
Jan 20, 2018
Messages
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Location
Carson Ca
Genesis Model Type
1G Genesis Sedan (2009-2014)
I will be changing out,(what I assume to be) the OEM spark plugs on Saturday. There is a video on YouTube that I will go off of, but no where in the manual does it tell the specific type of plug. What have you used when you replaced the plugs?
I'm thinking on getting NGK iX iridium spark plugs.
 
Will it make a difference if I chose the cheaper NGK?
The main difference in the available NGK plugs for the 2012 3.8 GDI is how long they last. Buying a less expensive, shorter life NGK plug speced for your car should be fine....... just won't last as long.
 
How did you 2012 spark plug replacement go? i have a 2012 w/116k miles and need to change my out.... did it yourself or dealership? estimate cost?
 
Lowest cost per plug I see is $12 at RockAuto. So I would expect a dealer's fee to be in the $300ish range to change a set.
 
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Will it make a difference if I chose the cheaper NGK?
Everything I read says that different metals wear out at different rates. Scotty Kilmer points out that the older copper spark plugs worked fine but were worn out at 20,000 miles because COPPER IS A SOFT METAL. So they experimented with nickel and platinum. Guess what ? Iridium is the toughest and hardest of all those metals, much harder than platinum. SO, when plugs are difficult to change, they use the iridium plugs. Some are claimed to last 200,000 miles. Your result may vary.
 
Either way, get them from RockAuto, they're way cheaper than getting them from the parts store or dealership. They also have ruthenium plugs which last the longest, possibly longer than your car will depending on the mileage.
 
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