Spark plugs have a thinn white coating on them......whats that mean?

i just bought my 96 black camaro 5spd v6, has 110K miles, i took some spark plugs out to inspect them, they all have a thin white coating on them, whats that mean, fuel too lean?

Means it is running on the lean side a little. As long as the engine is not making any noises I wouldn't worry about. Although, it wouldn't hurt to change the O2 sensors if they are original.

Jeff

Lean!

Yes, they are orginal, umm think i should go ahead and replace the plugs?, and btw my gas mileage is kinda sucking, think o2 sensors could attribute to that since its running lean?

I would do a nice tune-up on the car. Change the plugs, wires, PCV valve, fuel filter, oil/filter, O2 sensors, etc. This will let you know that your car is running up to its full performance. The poor gas mileage could be attributed to bad O2 sensors, but could be other factors also. That is why I recommend a nice tune-up for your f-body.

Jeff

Yes, they are orginal, umm think i should go ahead and replace the plugs?, and btw my gas mileage is kinda sucking, think o2 sensors could attribute to that since its running lean?
Original plugs at 110k? Replace 'em. I'd do O2s too, and your cat is probably on its last legs too, which can contribute to bad mileage.