My current spark plugs are getting pretty worn and I was going to replace them with NGK. According to the amazon.com car exact fit thing, the model number of the spark plug I need to use is BPR6ES. Is that what you guys use? This is for an EA81 engine, and I just want to make sure it is correct. 

For EA81 and EA82, I recommend those, which are the ones fitted from Factory,

 

but I prefer the version which has a groove: BPR6EY11

 

~► http://ngk-sparkplugs.com/bpr6ey11-p-2217.html

 

Kind Regards.

For EA81 and EA82, I recommend those, which are the ones fitted from Factory,

 

but I prefer the version which has a groove: BPR6EY11

 

~► http://ngk-sparkplugs.com/bpr6ey11-p-2217.html

 

Kind Regards.

Thanks Jezek! That was just the answer i needed!

I use the iridium ones nowdays since those are not very expensive anymore and have much longer change interval. It's the part number BPR6EIX11 that i use and those seem to be working without problems. I've been using them for around 35 thousand km  (about 20k miles) and even after that those has been worked fine. Nowdays ou can get a set of those for under 25$ so in long therm cheaper to use for me than changing plugs every 10 thousand km. But overall keep to the standard heat range and choose between differend styles after that. NGK lists four that are: standard BPR6ES-11, V-Power BPR6EY-11, G-power BPR6EGP and Iridium IX BPR6EIX11. 

Edited October 17, 201510 yr by -tombba-