Spark plug change at 89k

pruettfan · 11-26-2010, 06:10 PM

Today I decided to change the plugs in my 2006 330i. Chances are it will be summer at the time I turn 100k and they are due so I had some time and nice weather so figured what the heck. Used the DIY on the site and it walked me through perfectly. Anyway the visual inspection of the plugs shows all it well and based on the visual alone one would think I would not notice a difference in performance once they were changed. In fact I did, fairly substantial in terms of acceleration and a small amount on idle. I will see if I get a difference in mpg which I suspect see a slight improvement. My point is that I think going the full 100k on the plugs might be stretching them a bit. Not sure what the magic number should be but for those with about 2 hours to kill and a car getting close to time for new plugs you may want to go for it sooner rather than later.

Tom

bmw6953 · 11-27-2010, 09:10 AM

I agree 100K is way to long. I changed mine at 85k, but I will change them every 30k from now on. I plan on pushing the car atleast to 250k.

Denny347 · 11-27-2010, 11:05 AM

Good to know. I'm at 72k and I was thinking about changing them.

11-26-2010, 06:10 PM	#1
pruettfan Brigadier General 1622 Rep 3,402 Posts Drives: 2017 M2, LBB, DCT, Exec Join Date: Jul 2009 Location: Chandler, AZ iTrader: (0)	Spark plug change at 89k Today I decided to change the plugs in my 2006 330i. Chances are it will be summer at the time I turn 100k and they are due so I had some time and nice weather so figured what the heck. Used the DIY on the site and it walked me through perfectly. Anyway the visual inspection of the plugs shows all it well and based on the visual alone one would think I would not notice a difference in performance once they were changed. In fact I did, fairly substantial in terms of acceleration and a small amount on idle. I will see if I get a difference in mpg which I suspect see a slight improvement. My point is that I think going the full 100k on the plugs might be stretching them a bit. Not sure what the magic number should be but for those with about 2 hours to kill and a car getting close to time for new plugs you may want to go for it sooner rather than later. Tom
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11-27-2010, 09:10 AM	#2
bmw6953 Second Lieutenant 23 Rep 257 Posts Drives: 2006 325i Join Date: Oct 2008 Location: california iTrader: (0)	I agree 100K is way to long. I changed mine at 85k, but I will change them every 30k from now on. I plan on pushing the car atleast to 250k.
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11-27-2010, 11:05 AM	#3
Denny347 Major 347 Rep 1,076 Posts Drives: 2008 M3 E90 Join Date: Aug 2010 Location: Indianapolis, IN iTrader: (0)	Good to know. I'm at 72k and I was thinking about changing them.
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