My insurance agent has a 2000 5.3 with like 330,xxx miles on it and he got pissed off when he had to replace the water pump lol. My 03 only has 71,xxx

 

Hell, I'd rather change the water pump than the #7 plug.

 

my rst has 75k on it still runs like new my dads 05 l33 z71 has 115k on it and he hasint changed the oil in 40k miles lol i drove it the other day and it runs great my cussins 01 4.8 has 220k on it still runs like great never had a issue with any ls motor we had a 00 formula ls1 with 147k on it and it still loved the 150shot the dam thing got sprayed daily ive had over 10 ls motors and never had a issue

 

my truck has 139k on it have drove it 20k in the past 13 months changed a bunch of steering and suspension stuff only engine stuff i have changed is the plugs. my trans is the same one from factory. my buddy has a 02 camaro with 200k and some change and it loves the bottle haha

 

I've got 190k on my 4.8. I've changed the oil regularly and replaced the fuel pressure regulator once. Still has the factory plugs and trans fluid.

 

got 150k on my 5.3 dont burn a drop of oil. just had to replace knock sensors and intake gaskets a week or so ago along with ujoints on the front drive shaft (source of my vibration problem)

 

id change those plugs ASAP, thats just stupid to run original plugs that long imo. To me plugs are just another preventative maintenance item. As for the trans fluid, you might as well ignore and wait for it to blow if its been holding together that long.

 

LOL! Yeah, I'm gonna change them the first of the year. The old trans fluid might be what's holding it together. I plan on doing a 6.0 80e swap next year, so I'll just ride it out.

 

Mines pretty young at 103,000, but has some pressure put to her from time to time. I've owned it since 45k. At 70k the fun started with a turbo install. This weekend's gopro showed 18-19psi and 21psi on shifts with a 76mm.

I've broke the stock driveshaft and replaced 1 tie rod and a couple hoses that was mostly my fault for melting.

*** edit, should have said I got a 4.8, I fail!

 

Damn some of these mileages are crazy! I have 288k on my o7 classic, so I don't feel too bad. 4k ago I changed the original sparkplugs out, did a trans drain and refill (original fluid & trans), and diff service. I still need to do another trans service, and find out why I have a steering shimmy.