I just got a set of NGK PFR5G-11 spark plugs and have some questions. I've done some searches here but didn't get any conclusive answers that I wanted.
Do these come pregapped and are basically "plug-n-play"? If they are pregapped, what are they gapped at? 0.044? What is the recommended gap range for a J30 (owner's or service manual doesn't say)?
Thanks.
