Which spark plugs do you recommend coz i'm replacing the old spark plugs on my car. Its a 2000 civic EX. I can replace them with Bosch Platinum +4. Thanks

 

NGK ZFR-5F11 stock plugs do just fine. They also have the Honda part number, 98079-5615G.

Bosch plugs lick donkey nuts for Honda engines.

That Platinum +4 **** is nothing but hype - don't buy into it.

 

Denso iridium are good as well, but yeah the NGK stock plugs are great.

 

I went from NGK to the Bosh Platinum 2 and it runs great. The platinum 4s are overkill.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by 20civic00 &raquo;</TD></TR><TR><TD CLASS="quote">Which spark plugs do you recommend coz i'm replacing the old spark plugs on my car. Its a 2000 civic EX. I can replace them with Bosch Platinum +4. Thanks
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get ngk's dont waste your money on platinums

 

Ive used every different kind and the +4's rock. but a stock plug on a stock motor most of the time always works best.

 

from what I have noticed is that platinum and iridum plugs run like crap regardless of the make. (NGK/Denso/Bosch) i have best expirences with standard copper plugs such as NGK/AC-Delco/Champion

something else to consider

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote &raquo;</TD></TR><TR><TD CLASS="quote">The advent of Platinum plugs and other specialty plugs, is an evolution in the search to find a plug which would fire more reliably than the normal steel tip plugs at a wider gap with the lower voltage output of a stock coil. It was discovered that by coating the electrode from which the spark emanates with platinum, the spark would ignite at a lower voltage for the same gap. Therefore, the gap can be wider than a steel tip plug for the same voltage. The wider gaps mean more power and improved fuel economy without loosing the relative spark reliability.

The compromise of the Platinum plugs is that they do fire at a lower voltage which inherently means a less intense spark which does not ignite the fuel well. Although the ignition kernel may be larger, the intensity is lower which makes it propagate slower. You get less HP from the fuel consumed.

It is well known that steel tipped plugs produce the most intense spark. Think of it as conductivity. The lower the conductivity, the lower the spark voltage for a given gap. How conductive is steel vs. Platinum? Before Platinum, I recall ads in Popular Mechanics about new and innovative copper core spark plugs. These worked well for a short time but unfortunately the copper couldn't withstand the spark and burned up fairly quickly. Coating steel with platinum counters this effect. Ideally, you want a spark plug with low conductivity combined with a coil large enough to fire it over a relatively wide gap. This brings us to the "super coils".
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something to read:
http://www.babcox.com/editorial/cm/cm120032.htm

 

I mean really I don't see how anyone can honestly say that their car felt stronger after swapping to "special" plugs over functional stock-type plugs.

Unless the old plugs were fouled out or just worn as **** I cannot see any reason for "special" plugs to make a car run any better.

We have seen some cars running like poop with fresh Bosch plugs. Swapped in stock NGK plugs and fixed the problem.

 

I was going to put NGKs in mine but the parts store didn't have any...so in went Bosch plats (the normal ones, not the +4s)...they work fine.

 

STOCK!!

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by B18C5-EH2 &raquo;</TD></TR><TR><TD CLASS="quote">NGK ZFR-5F11 stock plugs do just fine. They also have the Honda part number, 98079-5615G.

Bosch plugs lick donkey nuts for Honda engines.

That Platinum +4 **** is nothing but hype - don't buy into it.</TD></TR></TABLE>

doesn't the higher the number, the hotter? how would this affect the motor's performance? lets say i'm running ur motor and i upgraded to 7's. i think 6's are oem itr? i can't remember.

 

i used to work for autozone and they always made us try to sell those platinum +4 things.
"they will give you better performance and better gas milage by completly burning the fuel"

go into autozone and ask about them thats what they'll tell you. then the people ask me what i had in my car and i was uh.. $2 ngk plugs compared to the $6 bosch bull sh$t.

 

kinda off topic but what is the correct gap for the ngk's on a usdm b16? or do these plugs come with a satisfactory gap right out of the box?

 

most of them come gapped from the factory