What is the benefit of changing the spark plugs other than a minor change in performance if your plugs are fouled etc. obviously it would run a little better and such, but im at 58k and thinking about getting the ngk platinum plugs which would cost me about 60 bucks give or take. then i started hearing about people who changed their own plugs, which i plan to do, saying their rear valve cover cracked and there was oil in the coil pack well or whatever. then they needed a new valve cover = time and more money. I already got a new pcv valve that i will put in, and a new fuel filter i will install when i get a chance and i am starting to wonder wheather i should even mess with the plugs as long as its running well and performing.
Any input or opinions would be appreciated
Thanks

 

I don't believe there's any reason to change your plugs unless:

They're due to be replaced
You have an ignition problem
You have made an engine mod that requires a different plug
You've got nothing better to do,

but you will get many opinions that have been posted many times before.

 

I realize that this is a posted and reposted topic, but i was just wondering about the new (or new to me) information of the oil in the spark plug wells problem and the cracking of the valve cover. I am aware fully of the arguements for and against changing plugs early and the minimal to no performance gain plugs give.
Thank you for your response

 

Fuel Filter = In tank = No replacement.

Don't replace it unless there is a known diagnosed issue related to it. Waste of money.

 

you are almost at the recommended change interval for spark plugs anyway 60K miles...do it...you won't be sorry...

 

I replaced my plugs with the recommended OEM replacements at almost 95k miles because that's about when they were due to be replaced. I have had no problems with the engine since the change. All the old plugs were worn as expected, but fine otherwise.

Since I don't plan on owning this car for another 100k miles, it's something that hopefully I will never have to think about again.

I don't doubt that you will get other responses that are 180 degrees in opposition to what I said, but I can only relate my own experience and opinion.

 

Fuel Filter = In tank = I have the part and have seen many write ups on how to replace it.

 

5.5 gen ==> 105,000 replacement interval

I'd return the fuel filter and use the money else where. IMHO

 

It's not that hard to do. It's cheap insurance. You get to see if you're leaking oil because of a faulty rear VC. So, why not take the time to do the plugs?

 

If you've got no issues, then.... "if it ain't broke don't fix it" should apply.