Every after market, Store and Internet site I read indicates a BKR5EGP etc value of plug while the manual calls for 6 range. Which is right? I just bought the BKR6EIX-11's (Iridium) and am now wondering if I should switch for a 5 range. I realize the 5 is hotter, anyone have similar delema?

 

cheers

 

scott

Your owners manual should say what plug to use. You could also checkout http://www.ngk.com/

5 range is recommend for "city driving" and lots of shorter trips, with low revs.

 

6 plugs, especially Iridium will work very well for anything but lots of short trips.

 

Short is less than five miles.

 

IMHO :-)

In fact, my Euro spec car is factory fitted with 5 range. I recently swapped them for 6 range after a few trackdays seemed to wear the 5 range too fast, and I find my engine is doing very well indeed.

 

Summary: Setright recommends 6 range for all but the grannies ;-)

Thanks for the input folks. 6 it is!

 

scott

 

 

In fact, my Euro spec car is factory fitted with 5 range. I recently swapped them for 6 range after a few trackdays seemed to wear the 5 range too fast, and I find my engine is doing very well indeed.

 

Summary: Setright recommends 6 range for all but the grannies ;-)

That's weird they actually recommend the 5, because all the ones over here that I know of use the 6 range.

Yeah, but maybe the cold Scandinavian climate is to blame. Or maybe it's a gas thing. Lowest RON here is 92. I run 95.