Spark Plugs

[t_marat]

Hey everybody :p ,
I wonder if this plugs (bosch super 4):
http://www.boschautoparts.co.uk/pcPlug4.asp?c=2&d=1

will fit my 1994 BMW 520 with M50 engine (6 cyl).

It has 4 contacts. Do you guys know if it is of any use having 2 or 4 contacts instead of 1? Or is just hype?

Thanks.

[Kai@e34.de]

the M50 engine always has spark plugs with at least 2 gnd electrodes.

i'd use NGK BKR6EK, this spark plug is the same that BMW recommends and sells for the M50.

[SharkmanBMW]

don't waste your $$$ on platinums or other "super" plugs.
Go with stock plugs from ngk

[632 Regal]

or bosch

don't waste your $$$ on platinums or other "super" plugs.
Go with stock plugs from ngk

[t_marat]

what if this super 4 and normal NGK cost the same? which would you suggest I buy?

[632 Regal]

stock NGK or Bosch

[SharkmanBMW]

it's not about the $$$, it's the performance

[liquidtiger720]

What about those denso iridums?

[t_marat]

it's not about the $$$, it's the performance
So you say NGK performs better than Bosch super 4? "Super 4" sounds a lot better than "stock NGK" :D


What is your opinion guys, which will perform better? They cost the same (or nearly the same).

[liquidtiger720]

NGK's...

[pyro]

a spark is a spark I had plat plugs when i bought the car and then I repplaced them with el chepo copper core autolights and the engine ran SOOOO much smother much better responce. just my .02$ worth

[emw525E34]

I know the platiniums are a waste of money as the engine does not like it. The supers or NGKs would be the safest bet. Some said Denso Iridiums LK20 will fit the M50 engine and gives better top-end, its claimed. These cost about 3 times the Bosch Supers. I think they might last 3 times longer ?.

[Kai@e34.de]

So you say NGK performs better than Bosch super 4? "Super 4" sounds a lot better than "stock NGK" :D


What is your opinion guys, which will perform better? They cost the same (or nearly the same).
NGK, again...

[t_marat]

OK, thanks everybody, will buy NGK

[gtopaul]

a spark is a spark I had plat plugs when i bought the car and then I repplaced them with el chepo copper core autolights and the engine ran SOOOO much smother much better responce. just my .02$ worth

I'm glad you posted that Pyro! I use Autolites in all my cars and have for years since my Hot Rod days. Never had a bad one. I use them in my BMW's if they are listed for the application. The single element plugs run fine in my 525iT.

Paul

[Alexlind123]

My car came with platinum plugs, i plan to replace them with ngks.

[stx133]

check previous posts for full details, i am now running the bosch super 4's getting better fuel economy and 'feels' liks smoother acceleration with more top end power. only say 'feels' because i havent put it on a dyno..

[632 Regal]

thud thud thud.

[infinity5]

i think most everyone who has ran +4s has had a very bad experience with them.

[stx133]

time will tell i suppose, its all good for now though. i do do a lot of HWY k's this may contribute to keeping the plugs clean which seems to be the problem that people encounter with the +4's