|
|
|
Last time I replaced plugs in my '95 850 NA w/ Bosch 4+s. I did noted improvement in performance at that time, and attributed it to the fact that the plugs were new.
I intend to replace the plugs again soon, and don'n know if I should continue usung Bosch 4+, or should I get OEM plugs.
I HAVE NOT NAD any problems w/ ignition/engine since I installed Bosch plugs.
Any advise is greatly appreciated. Thanks.
|
|
-
posted by
someone claiming to be mike
on
Thu Sep 26 01:03 CST 2002 [ RELATED]
|
|
Just another data point: I just installed Denso Iridium's in my S70 GLT and couldn't be happier. I didn't think I'd rave about a spark plug, but these things make a clearly objective difference in idle and throttle response. They're pricey - and I learned about them when I needed to change plugs on my Honday Odyssey which uses them (sticker shock, $10/each - cheapest I could find at www.importpartsspec.com ).
|
|
-
|
|
|
JMO and it never fails for me.
|
|
-
|
|
|
I'm just trying to get the best possible milege from the car.
But if you think: why peolpe do all those mods on their turbos-OEM does not work for them -I guess.
|
|
-
|
|
|
Because some people are never happy with a stock vehicle. I don't have one piece of aftermarket equipment on my car in its 65000 miles and have not had any problems other than normal maintenance. I did have cars previously that were loaded with aftermarket and had problem after problem.
When I run stock I have zero problems. (Why fix something that aint broke?)
JMO
BTW I bought OEM plugs (copper core) for $1.25 ea and they work fine.
|
|
-
|
|
|
Yours is a baby and not expected to have any problems at 65000.
I bought mine used w/ 71000 on the clock and who knows what it was since volvos are easy to turn back(as my mechanic said).
It's got 116000 now, and I did not have any major problems except radiator and rt. motor mount replacement.
I do replace everything w/ oem parts (including brakes).
I started this trend to see what's other people experience is.
You don't have to fix what aint broke, but sometimes PREVENTIVE MAINTANACE will save a few backs in future in save on other repairs and on GAS (that I expect to achieve since I do a lot of New York city driving).
Anyway, good to hear different opinions - thanks for yours.
|
|
-
|
|
|
You're welcome. It is your car. Good luck. I will continue the way I do it.
|
|
-
|
|
|
You're welcome. It is your car. Good luck. I will continue the way I do it.
|
|
-
|
|
|
You're welcome. It is your car. Good luck. I will continue the way I do it.
|
|
-
|
|
|
You're welcome. It is your car. Good luck. I will continue the way I do it.
|
|
-
|
|
|
You're welcome. It is your car. Good luck. I will continue the way I do it.
|
|
-
|
|
|
You're welcome. It is your car. Good luck. I will continue the way I do it.
|
|
-
|
|
|
You're welcome. It is your car. Good luck. I will continue the way I do it.
|
|
-
|
|
|
You're welcome. It is your car. Good luck. I will continue the way I do it.
|
|
-
|
|
Call me a bonehead if you like - but I just like NGK's. They are well priced, I have never had one foul in any car, boat, motorcycle, mower, weed whacker, chain saw, tiller, etc (can't say this about Bosch, Champion, Autolite, etc).
I went to NGK on my 1996 NA 855 at 20,000 miles and have not looked back.....I choose the v-notch platinum electrode, but I think even those are overkill.
Whatever you do, don't get the Bosch variety platinum with the tiny center electrode for just about any Volvo, turbos in particular don't like them.
--
www.fidalgo.net/~brook4
|
|
-
|
|
|
NGKs are very very good plugs. I've heard of some people having trouble with them in 850s, but who knows if it's the user or the car. If it works for you, it's all good =) I havn't tried them in my 850, so I can't say...but in other cars, they have performed very well for me.
--
Brandon
95 854T 92k
Pictures =)
|
|
-
posted by
someone claiming to be johnh
on
Mon Sep 23 10:39 CST 2002 [ RELATED]
|
|
I like NGK plugs too. Use them on my Toyota. But, I've got to disagree with your view on the Bosch with the small electrode. I've used them for about 5 years and 80,000 miles in my 850-Turbo. Good performance, good mileage, and the they look like new and still have the original gap after 30,000 miles.
|
|
-
|
|
|
I can't argue with what works!
I've had bad luck with those plugs so I just steer clear.
--
www.fidalgo.net/~brook4
|
|
-
|
|
|
I use NGK's in everything but my Volvo....
|
|
-
-
|
|
|
No real reason I suppose. Just never tried them. I should have worded my response differently....
"I use NGK's in everything else I have, I would imagine they would be fine in the Volvo, I have just never had a reason to use anything other than OEM, especially after trying the +4's."
Maybe I'll try them next time!
What NGK number do you use (if you do)
|
|
-
posted by
someone claiming to be Eric
on
Tue Sep 24 14:38 CST 2002 [ RELATED]
|
|
BCP7EV excellent choice
|
|
-
|
|
|
OR
NGK BKR6EVX (platinum version)
--
www.fidalgo.net/~brook4
|
|
-
|
|
|
I thought you would ask - Lemme check the number.....at work with the 245Ti right now....
--
www.fidalgo.net/~brook4
|
|
-
|
|
|
Seems to me the 5 pack OEM from Volvo is the best deal...I have not noticed a difference, and tried the +4's "side by side" meaning I installed +4's, drove a few days, installed OEM's and didn't tell a bit of difference. Returned the +4's to the guy who "talked" me into them.
I too subscribe to the theory that the spark plug is just there to ignite the mixture...so the OEM's seemed the way to go.
Just my two cents.
|
|
-
posted by
someone claiming to be johnh
on
Mon Sep 23 07:56 CST 2002 [ RELATED]
|
|
No argument from me about using OEM. The reason I started using Bosch was the only Volvo dealer in town thought his plugs were worth a lot more than I did. Been a long time, but I seem to remember something like five dollars each, vs Bosch platinums for less than two.
|
|
-
|
|
|
You are kidding!
I think the 5 pack I bought from my dealer was about $12 or so.
|
|
-
posted by
someone claiming to be johnh
on
Mon Sep 23 10:30 CST 2002 [ RELATED]
|
|
Nope, not kidding. I'd have gladly paid $12.00.
|
|
-
|
|
|
Back when I first got my '93 N/A 850, I installed a set of the Bosch +4's. I noticed the idle had become a bit rougher with them, so after a couple weeks, I returned them to the Advanced AutoParts store from whence they came. I put OEM's back in, and have never looked back. To me, plugs are one item that is easily changed, and folks feel that if they spend a lot for them, they must somehow be better.
--
RussB in Ct '96 855T - '91 944T
|
|
-
|
|
|
The guy at Advance (where I bought mine too) believes in the "the more they cost the better they are" theory too. I can't believe I actually listened to this guy.
Anyway, nice to know someone else agrees with me.
|
|
-
posted by
someone claiming to be johnh
on
Mon Sep 23 02:27 CST 2002 [ RELATED]
|
|
I've used plain vanilla Bosch platinums for the last 80,000 miles on my 850-turbo. They only cost a couple of bucks each at Autozone. They never show any wear whatsoever when pulled for inspection at 30,000 miles, but they're so cheap it's just as well to replace them. I'd guess it would be fine to forego the inspection and leave them in for 100,000 miles. But, I'm always concerned about spark plugs being difficult to remove and possibly snapping off during removal after an extended period of time. I do use anti-seize during installation. IMHO, any claim that a certain spark plug improves performance is so much hooey.
|
|
-
|
|
|
Well, Bosch designed the ignition system, so bosch or OEM dosn't really matter. I havn't tired the Platinum +4 plugs, but generally while lasting longer platinum plugs won't perform as well or give good idle quality. Of course the brass OEM ones will, but they wear out pretty quickly. I'm currently running Denso Iridium Plugs (cost $68 for 5 =( ) but they perform perfectly, and are supposed to last as long as platnium. BTW I have the gap on those at 0.28. Check Volvospeed.com or volvotuning.com for more info about those.
--
Brandon
95 854T 92k
Pictures =)
|
|
-
|
|
|
Volvo plugs (3-prong) for an N/A cost about $11 a set.
$35 for +4's
$68 for Iridium!!!
Volvo plugs worked very well for me, in both my '93 N/A & in my '96 Turbo. Quick starts, smooth idle, great performance. It's your money!
--
RussB in Ct '96 855T - '91 944T
|
|
-
posted by
someone claiming to be Ron
on
Sun Sep 22 23:35 CST 2002 [ RELATED]
|
|
easily last the 30K interval w/o ANY problems.
No matter what brand car I'm driving, I always use the OEM plugs for that vehical and they never let me down. On the other hand, I have personally seen, experienced problems when people use plugs that weren't what was specified.
They're just spark plugs SO they can't do anything more than ignite the AF mixture, don't GIVE added performance and/or mileage UNLESS you're replacing one that's NG to begin with (causing a misfire).
|
|
-
|
|
|
There's no doubt the OEM plugs are good plugs. They preform well. The problem is, they don't last as long. Volvo was looking for a affordable solution that performed well. OEM plugs are brass. I've found that the Denso plugs work as well, and perhaps a little better than the Volvo plugs. They do, however, cost twice as much. However, if they do end up lasting twice as long, one really wouldn't loose anything. The problem with Iridium plugs is very few companies manufacture them, and Denso is just about the only company that retails at any range in the US. It's just something that hasn't really gotten around to the full market yet. Just my two cents. They do work well, if I can say it enough =)
--
Brandon
95 854T 92k
Pictures =)
|
|
-
posted by
someone claiming to be Ron
on
Mon Sep 23 17:05 CST 2002 [ RELATED]
|
|
Do you keep plugs in for twice the mileage interval? 30K is the recommended change interval and the OEMs last that with ease, always. At 30K miles, they never look very worn nor is the car misfiring and I'd think they'd easily go 45-60K if one felt like playing that game. Me, I can afford new plugs to be changed when they're suppose to so I don't care if they don't last 100K miles as I won't even try.
|
|
-
|
|
|
I havn't had my 850 for 30k yet. I changed the plugs to the denso plugs about 10k early, becuase the OEM plugs were getting a little worn. If you have a turbo, it would probably be a good idea to change the plugs every 30 k, unless you really feel they are fine. The heat from the turbo wears on the plugs a little harder. With the Denso plugs I'm hoping to go near 60 before I replace...but performance is more important to me...so I will change them earlier if they start to wear. I do most of my own service work on the car, except when I need a special tool that's not economically feasable...it's really a good diea if you're comfortable with the car...you can always skip part of teh service schedule if you feel it's really not needed. Same thing with the plugs...maybe they'll last longer..but then Volvo also recommends that your fuel filter be changed at 90 or 100k (can't remember), either one is far too long. Also, they don't even recommend tranny flushes in teh schedule, that's insane!
--
Brandon
95 854T 92k
Pictures =)
|
|
-
|
|
|
I totally agree with Brandon...
If you service your car as much as possible yourself....you do get a feel for what is best. With the help of this board..all of our 850's ought to be perfect!!!!
|
|
-
|
|
|
It's a bit of a two sided coin. On one hand, the service schedule is there for a reason. On the other hand, later model cars like 850s will have silly service schedules. To keep the cost of maintence down with consumer reports things like "no tranny flush required" happen. And that's bad. Sometimes you've got improvise, so long as you always change your oil =) Also, OEM is best is a pretty good policy, but if you're willing to put the time into the research and the $$ into purchasing it, things that are better than OEM can be found for certain applications (i.e. battery, plugs, struts, shocks, brakes, etc)
--
Brandon
95 854T 92k
Pictures =)
|
|
-
|
|
|
I agree : 850s have ignition system designed by Bosch - why their plugs would not perform well as the OEMs? As someone said, only one electrode is working, so 3 or 4 electrodes on the plug is too many already, and a 2 electrode Bosch platinum plug should do as well as their 4 electrode plug.
Regarding service schedule: manual recommends using Bosch 1-electrode plug OR A CHAMPION plug, but Volvo uses 3-electrode plug?
AC Delco batteries seem to be much better then OEM.
Every one will replace OEM distributor cap and rotor w/ Bosch parts - same as oem.
|
|
-
|
|
|
It really depends on personal opinion, and the perfomance and longevity you expect out of your plugs.
Denso:
Some tuning mags and dynoed with Denso and claim up to a 15hp increase at the wheels. 15 hp was a RX7, so it's a rotary engine, but a starndard engine can expect a mild HP increase. They burn better and don't often suffer spark retardation, etc.
If you don't know much about your car, throw in OEM...they'll work fine, and replace them when you need...if you're turning your turbo or doing some performance mods on the engine, you might want to consider other routes....colder plugs, etc. If you are dearly attached to Bosch you can get different temp plugs from them too, of course.
--
Brandon
95 854T 92k
Pictures =)
|
|
|
|
|
