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you will need a magnetic spark plug socket OR use any deep well socket and then a telescopic magnet to lift the plug out of the hole and then use a piece of plastic tuning to attach to the tip of the plug to lower it into the opining, or I did see a video on sticking the plug into the coil and then use that to lower it into the opening or just splurge on buying the proper magnetic socket, easy to do good luck

Orileys auto parts,,,,,,,,,,,,,NGK V-Power Nickel Plug Number ZFR5F-11 Spark Plug - 2262
Part #   2262   Line:   NGK 4.7 out of 5 stars. Read reviews for average rating value is 4.7 of 5. Read 16 Reviews Same page link. 4.7   (16) Write a review Ask a question Fits 2014 JourneySee Application Details Change Vehicle
$4.69

Stay with OEM copper core plugs. The plug number is located on the under-hood sticker. Change every 30k miles. 

looks like 16 mpg in city and 21 interstate    depends on how you drive not to far off i get around 18- 20 in city and 23=26 interstate   which engine and how it is being driven?  and have you changed the spark plugs? 165 k =103 k in miles 3.6 change at 100 k and 2,4 eng every 30 k also you are due for the transmission service as well