Spark plugs

[Shamrock 1693]

Hi guys its coming near that time of year I change out the spark plugs. From the day I had my Mazda its had NGKs in it, Ive seen these NGK Iridium spark plugs
Theres a massive difference between prices so im at a fork in the road at the minute.

3.00 for a single NGK Nickel Spark plug spec below
Spark Plug - 1.3 16V 06/1998 - 86bhp 1299cc 1299Electrode Gap [mm]: 1,1
Spanner Size: 16,0 mm
Outer Thread [mm]: 14,0
Thread Length [mm]: 19
Spark Plug: Fixed SAE connector
Spark Position [mm]: 3
Spark Plug: Nickel Middle Electrode
Spark Plug: 1 - Earthed Electrode
Spark Plug: interference Suppression 5 kOhm
Spark Plug: With gasket seat


Or
30.00 for a single NGK IRIDIUM plug spec below

Engine Code:

M40 B16

Engine Code:

M42 B18

Fuel Type:

CNG

Fuel Type:

Liquefied Petroleum Gas (LPG)

Outer Thread [mm]:

14,0

Recommended replace interval [km]:

60.000

Recommended replace interval [km]:

60000

Spanner Size:

16 mm

Spark Plug:

Fixed SAE connector

Spark Plug:

Iridium Middle Electrode



Am I mad even considering a 30.00 spark plug to begin with when I change then ever year.

 

[pcb]

I think you should go with the regular plugs especially if you change them every year.

I'd spend the extra money on something that makes more of a difference.

I couldn't find your car on Rockauto. It must be quite rare.

I couldn't find any 1.3 L Protg or 323.

 

[Shamrock 1693]

Im thinking the same ones i put in it last year.

I couldnt even find the spec of my car on the sites over this side of the pond which bugs me.

 

[rsvinylgraphics]

why do you replace your plugs yearly?

 

[Shamrock 1693]

Force of habbit its like changing the oil and filters every 6 months

 

[pcb]

Speaking of filters, you should look into replacing you fuel filter.

On our car it's buried inside the sender unit in the gas tank.
People didn't realize we had one until it plugged up and burned out the fuel pump, then they had to replace the entire sending unit.

 

[Shamrock 1693]

Have the fuel filter in the cabin under the rear seat bench seems ok for the age but im to swap it out when the weather gets a bit better

 

[pcb]

Here's the big list of things to consider inspecting.
It's for the P5 but it should apply to you as well.