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Plugs at 40k or 60k?

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Old 12-15-2017 | 12:03 PM
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Question Plugs at 40k or 60k?

43k on my car. I couldn't find a clear answer online about this. I saw a graphic in a Porsche PDF that made no clear indication if plugs were at 40 or 60 on the hideous timeline they came up with.


I'm looking to sell the car in spring and want to know what maintenance should be done before I post it.


Already did oil myself. Last thing I did was get a window repaired and they did an inspection but didn't say anything about any upcoming maintenance.
 
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Old 12-15-2017 | 04:24 PM
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We bought our '08 with 27K on it and changed the plugs at 30K. Couldn't tell any difference and it now has 51k. still drives the same. Porsche recommends 30K for wife's Macan. Seems too soon as most Toyotas I've owned state about 90K. I've done them at 90K and noticed no difference. However, I don't track the 911 and maybe those that do need to change them more often.
 
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Old 01-27-2018 | 08:01 AM
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at 38K miles few of the coils facing the rear has hairline cracks so decided replaced the plugs since the labor get to them is already there. IMO they could last another 5-10K. Noticed a big difference in performance after replacing both coils and plugs.
 
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Old 01-29-2018 | 05:19 AM
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yea 40k should be good..porsche uses bosch platinum spark plugs toyota uses iridium so they can go 90k on those plugs
 
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Old 01-29-2018 | 08:56 AM
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Thanks for the input.


Surprisingly not much needs to be done from what I'm seeing. I also considered gearbox flush but most people say it's not needed at this mileage, and even when they did do it, didn't notice a difference.


Probably just going to replace front tires, pads all around, and brake flush, then list it.
 
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Old 01-29-2018 | 03:30 PM
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Originally Posted by sober_owl
yea 40k should be good..porsche uses bosch platinum spark plugs toyota uses iridium so they can go 90k on those plugs
Why wouldn't Porsche use the iridium if they last that much longer?
 
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Old 02-04-2018 | 02:38 PM
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Originally Posted by Johnny DB
Why wouldn't Porsche use the iridium if they last that much longer?

Because its actually not true.

Platinum would actually last the longest at 100K+ miles. Porsche is not using that in our cars.

Iridium is good for 60K+ miles. Again, not used in our cars for OEM.

The bosch 4 electrode FGR5KQE0 used in the 997 is a copper plug. They can go 30K+ miles (although mine looked fine).


Porsche specs their parts to meet their performance specs. Copper is technically a better material at removing heat (more conductive) than either platinum or iridium.

Mike
 
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Old 02-05-2018 | 11:40 AM
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Originally Posted by bhvrdr
The bosch 4 electrode FGR5KQE0 used in the 997 is a copper plug. They can go 30K+ miles (although mine looked fine).


So technically I do need plugs?


I'm just trying to eliminate every little thing the tire-kickers are going to get on me when I sell the car...
 
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Old 02-05-2018 | 11:48 AM
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Yes, the porsche maintenance schedule calls for them on your car at 40K miles according to some of the schedules and at 36K miles according to the other schedules.
Either way you're due...

https://gaudinporschelv.com/images/d...11_987-997.pdf

https://pictures.dealer.com/porscheo...4b90d785c2.pdf
 
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Old 02-25-2018 | 09:19 AM
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I change mine every 4 years (weekend driver, 36k on a 2009 C2S)
My concern about going longer is that I have read here that some folks who kept the plugs for 40 k on "garage queens" or "weekends drivers" had some of their plugs "stuck" with lots of troubles removing them.
Not sure if that is true or something I think I read somewhere .
I hope I am not perpetuating some mis information
 
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