Spark Plugs for C3 KU engine - Advice please

Ringmaster · 15-04-21, 03:21 PM

Greetings Folks,

Keeping well I hope. Just a little advice please on spark plugs for my C3's KU engine.....

It's time to change them and I've always used Bosch plugs (WR6DTC) without issues.
I've read a lot of good things about NGK plugs and I'm tempted to try their multi-electrode BUR6ET plugs. NGK seems pricier.

Does anyone have a view as to which is the better brand, NGK vs Bosch?
Is a multi-electrode plug really better than a single electrode?

Opinions gratefully received.......

William Blyth · 15-04-21, 04:35 PM

Hi

I know it doesn't answer your question NGK vs Bosch but have you considered Denso Iriduim plugs. I came against the same issue when I updated my B3. I considered the Bur6et plugs but finally went for Denso. I must say they cost more, but they certainly are brilliant and never miss a spark.

mikes2 · 15-04-21, 04:40 PM

I tend to favour Bosch as that was OEM. NGK didn't make a suitable plug for these when they were new although they do now.

TC = triple core which are preset. If you go single electrode, you'll need to gap them

You can also use Beru which tend to be more expensive but are the same as Bosch.

I've got W6DTC in my 10v currently

Ringmaster · 16-04-21, 10:04 PM

Thanks chaps.

I will look into Denso first. Hadn't thought of them before...

BackintheFold · 16-04-21, 10:32 PM

Quote:

Originally Posted by Ringmaster

Thanks chaps.

I will look into Denso first. Hadn't thought of them before...

I can second Iridium plugs. I always switch to them with any vehicle I get!

Be careful that you buy plugs with removable screw on tops if you need to remove them-I think Denso tops are not removable. I use ngk 6637 in my ur which are so I can use either type of spark plug lead.

Sent from my iPhone using Tapatalk

Ringmaster · 03-05-21, 03:22 PM

Chaps,

Eventually went with the NGK BUR6ET plugs and am pleased with them so far.

Considered Denso etc, but NGK fit my budget on this occasion. Maybe next time...

15-04-21, 04:40 PM	#3
mikes2 4 ring whore! Classic Audi Club Member Join Date: Nov 2007 Location: Polmont Posts: 2,617	I tend to favour Bosch as that was OEM. NGK didn't make a suitable plug for these when they were new although they do now. TC = triple core which are preset. If you go single electrode, you'll need to gap them You can also use Beru which tend to be more expensive but are the same as Bosch. I've got W6DTC in my 10v currently __________________ 1991 90 quattro 20v sport 1991 90 quattro

15-04-21, 04:35 PM	#2
William Blyth Grown up member Classic Audi Club Member Join Date: Jun 2018 Location: Lincolnshire Posts: 28	Hi I know it doesn't answer your question NGK vs Bosch but have you considered Denso Iriduim plugs. I came against the same issue when I updated my B3. I considered the Bur6et plugs but finally went for Denso. I must say they cost more, but they certainly are brilliant and never miss a spark.

16-04-21, 10:04 PM	#4
Ringmaster Senior Member Classic Audi Club Member Join Date: Apr 2008 Posts: 1,326	Thanks chaps. I will look into Denso first. Hadn't thought of them before...

03-05-21, 03:22 PM	#6
Ringmaster Senior Member Classic Audi Club Member Join Date: Apr 2008 Posts: 1,326	Chaps, Eventually went with the NGK BUR6ET plugs and am pleased with them so far. Considered Denso etc, but NGK fit my budget on this occasion. Maybe next time...