Damn spark plugs!

[ClayW]

So, I'm told by the CarQuest guy that Bosch is no longer making W8DC plugs any more. They are, however, offering the following:

WR8DC

W8DCO

WR8DCW

I caved and bought the last ones, because that's all Autozone had and they were cheap ($5 for 4).

Can anyone shed some light on the differences?

[winstontj]

So, I'm told by the CarQuest guy that Bosch is no longer making W8DC plugs any more. They are, however, offering the following:

WR8DC

W8DCO

WR8DCW

I caved and bought the last ones, because that's all Autozone had and they were cheap ($5 for 4).

Can anyone shed some light on the differences?

No idea about those plugs but I heard that's absolutely not true - major carriers like Autozone, etc. are no longer carrying/stocking the product however Bosch still makes the plug. They are still available at many smaller shops - which we should all be shopping at anyway IMO

[Mike Self]

(nt)

[albawhore]

The "R" denotes resistor type and this board generally hates those. I am still a noob though and maybe some have had good luck with resistor types.

[PatAllen]

see this...

[PatAllen]

and also...

http://jobs.boschusa.com/AutoParts/TechnicalResourceLibrary/

this could be a usefull link it the FAQ page, imho,

hth

[visionaut]

So, based upon the cool Bosch sparkplug 'secret decoder ring' chart, and the choice of plugs listed by the original poster - the W8DCO's would be the best choice to 'equiv' W8DCs? Yes? (They have no resistor, and their only diff being "O" suffix, whch indicates a 'deviation from basic version' - meaning exactly what?)

[TobyB]

(nt)

[ClayW]

So, based upon the cool Bosch sparkplug 'secret decoder ring' chart, and the choice of plugs listed by the original poster - the W8DCO's would be the best choice to 'equiv' W8DCs? Yes? (They have no resistor, and their only diff being "O" suffix, whch indicates a 'deviation from basic version' - meaning exactly what?)

The guy at Carquest looked in some (?) book hat told him that the W8DC0's had a heaver duty electrode. They were listed for some Mercedes and were about $3.50 each versus a little over $1 each for the WR8DCW's........I'm curious if they'll work better or at least last longer.

[visionaut]

the W8DC0's had a heavier duty electrode

Well, that sounds good to me - thanks Clay. Looks like I'll buy a set to try 'em out (hope they come in a W7DC0 version too.).

[ClayW]

(nt)

[_z_]

Kieth was telling me about trying bosch W7DSR in stella (i'm pretty sure that was the number). I'd never heard of using silver (the S in W7DSR ) but it sounded interesting. I don't think they make an 8 or non-resister silver type though

edit: actually there are WR8DS .. no idea if they'd work well or not