Looks almost exactly like the plugs I've taken out of my friend Jim's '09 oil burner every 10,000-15,000 miles.any one have one like this? 12,200 miles on the factory plug running 87 octane gas since new. burns oil (685 anyone?) but runs decent otherwise. A true mix of on and off highway miles. I look forward to your thoughts.
Then again, you can buy a lot of oil and spark plugs for the price of a 658/685 kit, either one. If it continues to run OK, that is.Looks almost exactly like the plugs I've taken out of my friend Jim's '09 oil burner every 10,000-15,000 miles.
His has about 59,000 miles now.
658 or 685 either one will work.