https://www.subaruoutback.org/threads/2-5-non-turbo-spark-plug-gap-specs.53096/

 

Thanks, but this link is for Gen 3 Outbacks

 

Interestingly, if you Google the NGK part number from the manual you come up to a spec page for the plug, and the compatibility chart is 100% Subaru. That gap is 0.31". I doubt they gap it to anything but spec but that's no guarantee.

 

I think you mean 0.031" - 0.31" definitely wouldn't work, and might even hit the pistons.

 

You are correct. Thanks for clarification.

 

Strait from the Service manual.

We never touch the gap. It comes pre-gapped from NGK. If it's not correct you return the plug.

 

Thanks everyone. I'm not seeing any gap info in my manual or the 576 page version I just downloaded. Can anyone provide a link to an electronic version where you're finding that info?
Thanks

 

I literally copied it from Subaru's electronic service manual that dealer techs have access to. I can't provide any links.

Can't get anymore from the horses mouth than that.

 

 

The front crossmember in front of your radiator should have a label that shows the gap, along with a lot of other information specific to your engine. Look here:

 

Thanks to all. No stickers on my or my neighbor's 2020. Nothing in our manuals either. I'm going with 0.031.