1995 850 wagon NA 180K miles
Seems to be varied views on the plugs. I need to do a change: Plugs, wires, cap and rotor... The only variable seems to be 'which plugs'? FCP offers several types, etc..
What do you all suggest?

 

Go with bosch or OEM

 

I spent the cash to get Iridiums and regretted it...go OEM.

 

oem / genuine volvo...

iridium is wrong temp range as boxpin found out.

(how long did they last you?)

 

Bosch for Non-turbo, Champion for Turbo. Just looked it up in my Volvo Owner's Book. People here complain about using plugs not endorsed by Volvo.

 

just changed my plugs today too,was gonna do wires too but 130$$$ wtf,, is that right? 130 bucks for wires. And how would I know if I need wires? Car starts fine and drives good, is there a test to determine the voltage that runs thru it?

 

I had the iridiums in for a week. I was getting high rpm misfires and was baffled. Had several people recommend going to OEM and changing the gap to .026. Problem solved. Runs great.

 

oem.............

 

ive been running autolite iridiums for 6months and have been somewhat satisfied, though it seems recently to be running a lil rougher, wires cap and rotor are all new. Im gonna switch back to oems

 

130 for plug wires? hope that comes with lube! Try here:

http://www.fcpgroton.com/product-exe...ategory_id/111


or if you want OEM, try here:
http://www.ipdusa.com/Volvo-850/Filt...-242-658-1047/

 

thats pretty much what i expected. I've heard of people running them for a week or 2 and pulling them out to find no electrod left at all... Its nice when they cost 10 dollars a pop and they last a week... Im shocked that you've had them last for 6 months shelby. let us know if new ones help your running issues.

Also nice find with IPD selling the OEM wires for 50ish dollars... better then FCPs price even... (too bad they dont do free shipping over a set price though)

 

yeah ive never had any misses with them, but my temp gauge at running temps is a little higher then it was before

 

I am not so sure it was the Iridiums or the gap since I did not regap the Iridiums I just swapped for OEM with a .026 gap.

 

you arent sup[posed to regap iridium plugs anyway, IIRC...

 

lol very well played sir.

I'm in the market for plugs too. OEM is just not exciting but will do

Ok, i understand that these crazy firestorm spark plugs would be bad for the auto industry so they'll never be produced. But Sooooo want ! http://www.youtube.com/watch?v=abwXApkLhbc

PLASMA IGNITION! bwahaha! http://www.okadaprojects.com/usa/products.htm
impressive but $$$ not even offered for anything other than Beemers, or scoobydoos

 

Put in new Champion spark plugs 2-3 months ago. Didn't gap at the time, because couldn't find the gapping tool in my garage. My CEL had come one a couple of weeks ago (Knock Sensor code). Re-opened the plugs on the weekend. Found them all at .043 gap. Broke one, put in the new Champions ones, after gapping correctly to .026. CEL went away. Car's running does not feel any different though.