97' 850 turbo - Spark Plug question

Post by **MadeInJapan** » 23 Apr 2009, 19:03

mosearch wrote:Robert Bosch received one of the earliest patents on spark plugs. So, without a lot more scientific or empirical evidence, I think it's absurd to assume that Bosch can't make plugs for Volvos.

Not saying that they can't at all...just been on these forums for years and owner of Volvo's for 11. I've just read over and over about the Bosch Plat's having trouble in our cars after awhile. I do personally use the Bosch Copper cores and think they are awesome.

mosearch · Post by **mosearch** » 23 Apr 2009, 20:48

OK. I'll take that as a warning to pay attention and be prepared to replace the lowly Bosch Platinum single-prongs early, when they develop the dreaded mis-fire.

The OEM-"Volvo" (likely NGKs) were in for 30,000 miles, and I only replaced them out or routine; not due to actual failure.

Post by **MadeInJapan** » 23 Apr 2009, 20:50

I'm getting 30+K miles out of my Volvo plugs as well- the Bosch coppers tend to need it a bit earlier, but hey, they're cheap.

Demon · Post by **Demon** » 24 Apr 2009, 11:39

you can use double platinum plugs as well, correct? I mean that's the only one i use. regular platinum burns too quick and earn you less gas.

Post by **MadeInJapan** » 24 Apr 2009, 22:18

I have no idea- I just avoid anything that says platinum on them after reading all of the problems people have had with them.

Post by **DragosGD** » 25 Apr 2009, 00:05

I got OEM spark plugs (8692071) for my S70 T5 '98 for just $29.20 + $10 shipping, from TASCA. These guys are the cheapest !!!!

http://www.tascafordparts.com//index.do