i have honda accord hybrid 2005 and i was checked the spark plugs and i found a brown layer on the ceramic insulator is that an indication that i need to change the sparks ?
Does the car's muffler violate sound ordinances? Are there laws in the state, county, or city in regards to the level of tinting on the windows (if permitted at all) and does the car violate them? Does the car have illegal lighting on it? Is the car's body been lifted beyond a safely legal height? While many cars on the road are capable of extremely excessive speeds, that is not a factor in street legality. Obeying speed limits handles that factor.
There is no legal limit to your engine, either capacity or power. You can have a thousand horsepower if you like, and your car can go 200 mph. Neither makes you car illegal.
For the best answers, search on this site shorturl.im/BBVl4 real cars, old cars like from the 60-s,70-s, muscle cars with some horse-power and paint job.
If the brown layer is on the outside of the plugs, it is normal dirt from driving. If the brown ring is on the ceramic part that goes inside the engine,,,,, it is still normal. Don't worry about it.
A light brown almost caramel color is a good sign that everything is working properly. Your spark plugs in that vehicle are designed to last for around 110,000 miles and can even go higher depending on the fuel you use. You have to check the gap on the plug to determine if they should be replaced. The correct gap setting should be on a sticker under the hood or in the owners manual. As this type of plug ages it slowly wears away at the electrodes and the gap increases until it eventually will be beyond the designed heat range and then you will begin to notice performance issues like loss of power and fuel mileage. When you replace these plugs make sure to use a high grade plug with iridium tips to regain the losses. Also it is very very important to use anti-seize on the threads of the plugs before you tighten them back into the cylinder head. If you don't properly lubricate them the next time the plugs are removed it will rip the threads out of the head and is very costly to fix. I hope that I have been helpful.
