I replace my sp-507 with the sp-515 and really haven't seen much of a difference..

 

I doubt you would see any difference.

 

any reason why copper anti seize would not hold up? I'd hate to spend the $20+ on nickel for a once every 5-7 years job.

 

I use nickel anti seize all the time on all kind of stuff bought a big jar of it about 5 years ago and it has many uses. Ford recommends nickel thats what I'd use..

 

Copper is good to 1800F, Nickel is good to 2400F

 

You need nickel AS to put up with the temperatures associated with combustion chamber....

 

I think I'm going to use copper anyway. Says good to 2000F. We'll see if it holds up when they get changed at 200k.

 

You are too cheap to spend $20 and use what's recommended?

 

Yes. I'm not going to use a spark plug socket either. They're are sp515s, they will come out easier than these original 102k mile plugs. I have regular anti-seize and copper, I'm not buying anything more. love you buddy. no homo.

 

PLEASE don't.

The real reason you should NEVER use copper on the sleeves is the stuff is Death to the O2 sensors - it WILL migrate from the chamber and Kill yer O2's in very short order.

Once you destroy the front pair, you can kiss yer closed loop A/F control goodbye - along with yer power, mileage and possibly yer cats.

Save $20 now - spend $200+ shortly thereafter, on new O2's ( there are 4 ) - plus labour if you don't change them yerself. And no - despite my reputation, I am not chittin' you.

MGD

 

I can't find anything via google saying that. Why would copper kill them, and not regular anti seize or nickel?

 

DO IT.. You dont want our opinion.. Save $20 and please keep us informed how it works out for you!

 

I've never heard that copper anti-sieze was death to O2 sensors either. In fact, I installed a set of Bosch sensors a few years back that had a packet of copper anti-sieze for the threads. I did a quick google search too and didn't see anything about copper vs O2 either, but am willing and desirous to learn and save myself a mistake later. Silicone is the one quick O2 sensor killer I know of... but copper?

That said, and possible O2 problems aside, I wouldn't use copper on the plugs either for the temp differences alone and the unknown risks in using something not spec'ed.

 

If i were not going to use the high temp nickle antisieze, I would not use any. The wrong stuff is worse than none at all.

 

Guess I should have found this thread first before starting a new one lol