850 spark plug ?

jurg7 · Post by **jurg7** » 17 Jul 2010, 09:47

hello

great forum....working on the sons 850 (97)...bought some spark plugs
ngk bkr6eix and when comparing them for length with the volvo plugs installed in the car they are approx 1/8 " longer..is this just do to the electrode design?? nothing to worry about

thks
jurgen

Post by **pkc303** » 18 Jul 2010, 09:50

I'm told they run best on the Bosch copper. We have a 97 850, and the cheaper Bosch seem to be what the Volvo's like. http://www.ipdusa.com/version.asp?strPa ... V_ID=11461

I'm pretty sure they should be the same size as the ones you are pulling out.

kahf2008 · Post by **kahf2008** » 18 Jul 2010, 10:10

Hi, there is a website eeuroparts.com ot fcpgroton.com if you want to check the prices for oem spark plugs. there is a set of 5 for 25$. good luck

Post by **polskamafia mjl** » 18 Jul 2010, 11:52

pkc303 wrote:I'm told they run best on the Bosch copper. We have a 97 850, and the cheaper Bosch seem to be what the Volvo's like. http://www.ipdusa.com/version.asp?strPa ... V_ID=11461

+1 OEM or Bosch Copper, the fancy plugs don't run well.

pafro · Post by **pafro** » 19 Jul 2010, 06:11

Hi, what engine?
Please use only the Volvo Plugs if you have a turbo model.
I tried all the others and had either problems or the plugs where useless after 10k miles

BlackThunder · Post by **BlackThunder** » 08 Aug 2013, 16:51

polskamafia mjl wrote: +1 OEM or Bosch Copper, the fancy plugs don't run well.

I know this is an old, and possibly well worn topic, BUT on FCP Euro's website they have different plugs listed. The last time I changed my plugs I used the copper ones. Are those now the "Bosch Super"?

Also, what would be the benifit or detraction of using the step up "Bosch Platinum" plugs?

This is going into a 1997 NA 850.

Thanks,

Dustin

Post by **Pauloil** » 08 Aug 2013, 19:37

platinum aren't made for our cars.

BlackThunder · Post by **BlackThunder** » 08 Aug 2013, 21:18

Yeah, I have heard that, but why? They just don't last as long? Cause mis-fires? I'm just trying to understand this better, that's all.

Dustin

Post by **erikv11** » 08 Aug 2013, 22:35

The problem reported with Bosch platinum plugs is misfires; I don't know why.

BlackThunder · Post by **BlackThunder** » 09 Aug 2013, 13:00

OK, thanks. So the "Bosch Supers" are the regular Bosch Copper?