No short trips to speak of other than occasional moving around the yard...for the most part 20-30 mile trips minimum so fully warmed up. At 15k miles it's been running fine, no codes and not running rough. I can't say that I've ever seen this condition...dry and scaly.
Since day one I've only used Shell 93 octane. I'll probably pull it out and have look next oil change.
Nope, was running fine, no error codes, no hesitation. The only reason I was changing the plugs was to install one-step colder plugs that come with the Panda Power Module. Only other odd thing was that #2 plug was just barely tight but the plug looked fine.
On big CAT natural gas cat engines, it's not uncommon to see variations on how the plugs look across cylinders, but those are large 12 up to 20 cylinder machines. Outside cylinders always tend to look different than inner cylinders. Just hard to get a uniform temp and air/fuel distribution when you have a very large intake area.
I was thinking possibly the EGR scenario as it's really the only thing that makes sense. I'm going to pull it next oil change to see how she looks.
Will do. I only had a chance to put 50-ish mile on yesterday but can't say I noticed any difference. My first time using them, most say they are great but only good for 10k - 20k depending on how regularly you are into high boost pressures.
Nope, no additives and have a catch can for the last 10k miles as well. I'm not too concerned as the electrode looks fine...just scratching my head what could be the cause.
