what brand gas do yall recommend thats easibly available around town? i usually go to the Murphy USA gas station becuase i get a discount up there. running race gas isn't an option, the closest place that sells it is at least an hour away.Mike Allred said:Your plugs don't appear lean or detonated -- just chalked up with additive contaminants. I'd clean em up, fill up the tank with a different brand of decent fuel and run er' at 36 degrees. Detonation looks like black or gray specks. You're growing white fuzz on those plugs.