I'm about to change spark plugs on my car, and given the cost of getting just the plugs or plugs + cables, I'm considering just keeping the current ones.
The car runs fine (well, it's consuming way too much fuel), so I'm interested in knowing what kind of wear they go through that would make them fail or degrade performance.
The car is a 2010 Fiat Uno 1L, possibly with original spark plugs and about 46k mi