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EA81 spark plug choice(s)

Featured Replies

Search and did not find any alternate choice for the recommended NGK : BPR6ES-11

this is what the TSM recommend for the 85GL.

Thank you

You could also try the platinum version if you wish, BPR6EGP.

Never really heard of or seen a difference between the V-Power and the Platinum plugs in an old Subaru, but they do tend to last longer.

 

Twitch

I like switching to the 5/8" nut size versions of plugs, makes them easier to get in & out, like BCPR6ES or BKR6ES in NGK or RN9YC in Champion

I have used Denso or NGK plugs on our Subaru and Nissans.  Both are exceptional brands.  Currently running the Denso PW20TT on the '87 Brat.

Lets not turn this into a preferred brand thread. And actually some EJ20s are specified to run on champions and for some reason do not like NGK's. I know this from personal experience of a dealer fitting NGK's by default instead of checking the manual.

Search and did not find any alternate choice for the recommended NGK : BPR6ES-11

this is what the TSM recommend for the 85GL.

Thank you

 

Nippon Denso W20EPR-U11

Champion       RN9YC-4

Lets not turn this into a preferred brand thread. And actually some EJ20s are specified to run on champions and for some reason do not like NGK's. I know this from personal experience of a dealer fitting NGK's by default instead of checking the manual.

Not to be a turd or anything, but you guys got different engines than the US market and they may react differently because of different emissions standards, differences in fuel, etc.

 

Also, from selling auto parts/working on cars most champions and autolites run like garbage in Subarus (in the US market). Also, putting a standard resister plug in where a platinum or iridium was spec'd can make a major difference (problem) as well. I have seen a copper plug literally get the electrode get a hole burnt into it and also in a another case seen the ceramic get melted/boiled.

Doing the reverse doesn't really change much though, aside from potential longevity.

 

Twitch

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