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  #1  
Old 01-26-2010, 04:58 PM
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Timmer2009 Timmer2009 is offline
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Change your spark plugs lately?

My 09S just hit 42K miles.

Cold startup would produce a few misfires. Every once in a while I would get a Check Engine light for multiple misfires. Much like my old MG's, I would feather the throttle a bit until things smoothed out. Low RPM's under load would also produce a few misfires so I would always run in Sport mode around town.

I found the OEM NGK plugs on Amazon for $11.00 each. After I installed them my cold starts smoothed out. Running around town no longer requires the Sport mode. She pretty much runs like the day I bought it.

The plugs I pulled out looked great. No deposits, etc.

So ... if you experience some of the things I mentioned, change your plugs
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Old 01-26-2010, 08:17 PM
STi2Mini STi2Mini is offline
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How often should they be replaced on a MINI in general? 60K miles?

Does anybody have a guide as to what should be replaced at each interval? I'm more of a DIY kind of guy and would rather not keep taking my MINI to the stealership.
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Old 01-26-2010, 08:48 PM
pre shrunk pre shrunk is offline
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My owners manual states 60k for plug change on my '07 mcs. I'm curious if the '09 mcs w/42k has cleaned or replaced the air filter & what kind of driving conditions is normal for it ?
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Old 01-27-2010, 04:52 AM
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Timmer2009 Timmer2009 is offline
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Driving conditions

I drive 150 miles round trip to work every day (70 to 80 MPH). I use a DDM air intake system and keep it cleaned and oiled properly. Change my oil every 5000 miles. I also use Chevron fuel system cleaner every 10K and use 93 octane Sunoco gas on most fuel ups.

I like to play with this car when I can. I do not beat on it hard, but drive it like it is supposed to be driven. I manually shift it quite a bit keeping the revs to over 3K before shifting.

I think my manual stated every 50K to change to plugs.
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Old 06-29-2010, 03:07 PM
matma92ser matma92ser is offline
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Quote:
Originally Posted by Timmer2009 View Post
I found the OEM NGK plugs on Amazon for $11.00 each.
What search term did you use? I see plenty of NGKs on Amazon but can't seem to find the correct one.
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Old 06-29-2010, 08:02 PM
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Porthos Porthos is offline
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Quote:
Originally Posted by Timmer2009 View Post
My 09S just hit 42K miles.

Cold startup would produce a few misfires. Every once in a while I would get a Check Engine light for multiple misfires. Much like my old MG's, I would feather the throttle a bit until things smoothed out. Low RPM's under load would also produce a few misfires so I would always run in Sport mode around town.

I found the OEM NGK plugs on Amazon for $11.00 each. After I installed them my cold starts smoothed out. Running around town no longer requires the Sport mode. She pretty much runs like the day I bought it.

The plugs I pulled out looked great. No deposits, etc.

So ... if you experience some of the things I mentioned, change your plugs
Jeezuz 42k on an 09 holy crap I don't even have that on my 07. If you want your MINI running great and are a performance freak every 10 to 15k would be a good idea but its not really worth it unless you rack your car a lot.
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Old 07-01-2010, 05:29 PM
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Timmer2009 Timmer2009 is offline
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Finding the NGK plug on Amazon

Search for the number that is on the plug - Mine was ILZKBR7A-8G

I have found out that there were some defective plugs out there. I have not chaged these out as of 56K and it is still running great. Finally able to put gas in with Techron since I have moved to Georgia.

Don't have to drive so far to work either anymore.

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Old 07-02-2010, 08:26 AM
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callahan00 callahan00 is offline
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I have an 2008 R56 with JCW tuning kit with 46500 miles. My commute is about 58 a day plus it is the primary car driven on the weekends.

I change the oil every 75000 miles, Seafoam every 5000. My plugs are due to be changed at around 56,000 [every 2nd oil change per the recomended interval with the JCW kit]. I bought the extended maintenace plan which will pay itself and maybe even get some od the cost back.[but that is another thread]
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Old 07-02-2010, 04:47 PM
gregsmini gregsmini is offline
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Quote:
Originally Posted by callahan00 View Post
I have an 2008 R56 with JCW tuning kit with 46500 miles. My commute is about 58 a day plus it is the primary car driven on the weekends.

I change the oil every 75000 miles,
I hope that a typo
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Old 07-02-2010, 04:47 PM
 
 
 
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