1999 S70 T5 Tune-up - Spark Plugs

wllewis · Post by **wllewis** » 23 Dec 2003, 09:19

This is a pretty dumb question, but what spark plugs should be installed in a 1999 S70 Turbo 5? In the owner's manual it specifies a Champion RC8PYP spark plug, but according to the Champion representative, that spark plug is only available in European and Champion said to use RC12PYP. No big deal except that the 8 and 12 refer to a heat measurement and the 12's will burn hotter than the 8's which makes me nervous about installing them. Furthermore, I have read articles saying that platinum is not recommended for a turbo engine, but the Volvo recommended RC8PYP are platinum? Any help, ideas or shared experiences with spark plugs in turbo engines would be appreciated.

Post by **matthew1** » 23 Dec 2003, 09:56

Nothing evokes so much opinion, yet means so little in the end, as spark plug debate. I've read Bosch-or-die, I've read Follow-the-owners-manual-or-die, and I've even read a guy who swears by NKG, which are usually recommended for Japanese cars. Yet somehow all of their cars ran ok.

Me, I use Bosch -- I think. It's been about 2 years since I put them in, so I need to replace mine now that you mention it. I'm going to revisit this debate with you

.

I can't remember my rationale behind my Bosch (non-plats I think) decision. I'll do some research in the next week or so and get back to ya.