Yes, your data points are correct ... and the AR2592 were definitely suggested by LEHanover ... the BR10EIX suggestion may have come from Steve Boese.
I am using the BR10EIX as well - have never tried the AR2592.
Jeff

Hi Finn

That's what I understood - I think this info may have come from Lyn Hanover. "Cheaper racers use Autolite AR2592"
I recently purchased 4 as they were cheap but I haven't tried them yet.

Steve Izett

> On 3 Feb 2022, at 4:25 am, Finn Lassen finn.lassen@verizon.net <flyrotary@lancaironline.net> wrote:
>
> Any experience on Autolite vs NGK?
>
> Can get a 8-pack of Autolite AR2592 for $28.
>
> 4-pack of NGK Iridium IX Spark Plugs BR10EIX SOLID/6957 for $36.
>
> Is more than double the price for the NGK worth it?
>
> Am I correct my understanding that both of the above are the colder plugs recommended in place of the stock Renesis plugs?
>
> Finn