Wrong. A worn plug will have high resistance between the electrode and ground strap and you will get a weak spark, which will indeed cause a loss in performance. A spark isn't an on/off switch, it's a heat source. Produce more heat, get a larger explosion. Get a larger explosion, and you get more power. The…

You're right. I'll send you my check this month.

Because powertrain warranties are close to meaningless to me. Lengthen the bumper-to-bumper to warranty and now we're talking.

Probably very few. You'd be surprised how little the warranty actually covers. I have a 2011 GMC Acadia, and at 25,000 the AWD system failed. Despite clearly being part of the power-train,... it wasn't covered by the power-train warranty. I had to pay through the nose to have it fixed.

False, come talk to our combustion / electrical engineers.

This is pretty wrong. Different spark plug design won't give you increased horsepower from changing plugs, sure, but it most definitely does affect combustion. It has, in fact, a huge effect on combustion, because the spark plug is where the combustion starts.

Changing the spark plug does allow you to change the way…

were still able to watch the game from a less-desirable location

I too saw Independence Day.

Go on then, go and drop a set of cheap-ass Autolite spark plugs into a twelve valve Volkswagen VR6 engine, preferably one from the MKIV era. I'll wait.

Never used NJK have you? Had a couple of them over the past 10 years that now and again would not fire...stumble fart, all OK. No CEL's on 3 different vehicles that it happened to. :(

That looks like Jaden Smith's tweets strung together into a blog post.

op, fyi the lexus driver should have known better slow down let him flip out and lexus owner is just putting him self into more danger tailgating. As frustrating it was for him he should have known better. as for the Subaru driver just a tard setting a bad example.

I don't know, it had just the right touch of "get off my lawn" to it. I say legit. Judges?

just did thanks, maybe both idiots?

I thought the Subaru was having some sort of emergency and had to get to the hospital or something, he was driving that crazy. Then he started brake checking and throwing bottles so in the end he was just a douche.

I've only had my license for a few years now, never needed it before growing up in the middle of the city.

One more reason to get a dash cam. Why people refuse to spend $100 on a relatively good dash cam for their $40k car is beyond me.

I was once in a Porsche Cayenne GTS. There was a Jetta moving very erratically behind me, and I could just tell he was going to cut me off before he even passed. Sure enough, he slides into my lane with no blinker, requiring me to brake pretty hard to avoid hitting him. I gave him the beams, knowing the height of the…

That Lexus driver looks like he had a chance to slow down and get away from the guy, but decided to stay right on his ass.

The driver of this 'Rex in California is probably wishing he hadn't unleashed some road rage on a hapless Lexus RX driver, or at least that another motorist hadn't captured it on camera. Here's the video in question that ended up on LiveLeak: