Removed By Request

@BostonAC : When I was a teenager I used to be able to do that sort of stuff so when I got my first car I was able to do most of the maintenance on it. I wouldn't even attempt it on today's cars.

@Reverb2000 : Unfortunately on the Nissan 2.5L 4 cylinder engine, yes. Took what would have been a 20-30 minute job and made it a 2-3 hour job.

@CaffeineFree :
I spent my youth in the stock car pit, building muscle cars, and running demolition derbies. Ha and I wonder why some days I feel old.
I just spent $$$ because we have a brake light issue. Might be nothing but I'm not tinkering under the hood today on these cars.
I have called it when someone had car issues so some things don't change. I do keep my car serviced. Hell, I was coming down the mountains outside Carlsbad, NM and my brake squealed. My next stop was the brake shop. I always hide a grand on road trips for road emergencies and my AAA.

I changed all 16 of my plugs a few weeks ago at ~170k. Even the two jugs by the master cylinder weren't that bad.

@OlDirty : Two plugs per cylinder or a V-16? What kind of vehicle is that?

@FloydRTurbo : Hemi. Two in each jug. A V16 sounds fun but I'm not much of a Dusseldorf kind of guy.

@OlDirty :
Dusseldorf? You mean Duesenberg?

@WTF : 220, 221, whatever.

I was told the spark plugs needed to be changed every 15,000 miles.

@21clamer : Hadn't heard that...15,000???... unless it was a 1950 Ford dumptruck then maybe. The modern engines burn so clean I would envision changing plugs maybe every 100,000 miles, just one opinion. On a sidenote, if you can do the work yourself then you may save some money. I was recently quoted $180/hour (about 1.5 hours for the job) from one of the local auto fixit places to change 4 shocks on my vehicle. I already had the shocks, they quoted labor. I went to another fixit place locally and they told me around $250 labor, then maybe they could do for $200. I declined, went home, spent about 1.5 hours (no power tools) and did it myself...easy and simple with WD-40. Didn't even have to remove the wheels as older truck that sits up pretty high. It was HOT outside though, sweated off my John Brown, but the money I saved went into a couple ice cold margaritas. Not everything is easy to do yourself so be cautious in your decision to do yourself. I've worked on vehicles from 50+ years so I usually do it unless I get a reasonable price or the job is simple.