ChiCho55AMG

Its time to change the spark plugs , which one I should get ? The Original Mercedes or another ? I Know about the " NGK IFR7D10 " & " NGK IFR6D10 " . Which one is better and whats the difference between the 2 ? Anyone get any idea ?

GatorMB

Hey Chico,
I was faced with this last year @ tune-up time.
Mercedes oem plug is Iridium which is supposed to last 100,000 miles.
I serviced cars for a living at one time in my life and can say anytime you mate metal to aluminum for more than 25,000 miles at these temperatures your asking for trouble.
I went with a double platinum NGK/Nippendenso/Bosch and plan to change every 2 years.
The plugs were half the expense and work just as well. use a bit of anti-seize and don't overtourqe.

Gator

ChiCho55AMG

There is big list of spark plugs that works fine in our cars , I had many choices in front of me regarding the brand , all of them are great ... But I think I made the best choice

BigdblU

which is?

legofc

Which ones did you choose CHICHO ??

tw2

I will be looking at NGK laser iridiums when the time comes.

ghiaguy

ChiCho's avatar knows but he's not telling either

legofc

hahaha

ChiCho55AMG

Denso IK20
NGK IFR6D10
NGK BKR6EIX-11

legofc

Which one of these 3 did you choose ?

ChiCho55AMG

U will be good with any of these , I went with the First one

ChiCho55AMG

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Quant

iTrader: (1)

recently installed NGK IFR6D10, from my research they are perfect for stock 55 na cars. car felt great after install