budhayes3

iTrader: (19)

Needing a little oil could just be the classic GENIII oil consumption through the PCV system, get a catch can and see if that helps. A puff of blue smoke on cold start up is usually an indication of bad valve seals...if you're experiencing that...

BLUES MAN

i have 187,xxx on my 5.3, and my pappy has 250,xxx on his 5.3.

Mark Johnson

iTrader: (1)

just turned the clock at 116,000 and still going well. Some rear axle seals have been about the only issue, oh yeah and my intermediate shaft which I lube regularly.......

OL' MAN

iTrader: (3)

215,000 here, and just went through the the original 4l60e. It has had the 'ol cold piston slap on start-up since I bought it at 32,000, but still runs strong and doesn't use or drip any oil!

D_reks{5.3}

iTrader: (13)

Mine just hit 55,000 if thats helps lol, But seriously these motors can go for a few hundred thousand miles easy as long as its taken care of..

Country Boy

iTrader: (24)

My 04 has right at 200k. All stock.. well, I had to change the T-case due to the normal oil pump wear thoguh hole in it. Bought new.

slpsilverado

iTrader: (1)

105,000 here on my 5.3. Doesn't use a drop of oil. The only time it has been in the shop for ANY repairs has been when idiots have knocked my mirror off...twice.

ilikedirt

84,000 here, only problems i have had is the infamous fuel gauge and TPS

Wyttrash96

iTrader: (16)

220,000 miles here, and it's never had the seal cracked.

midnight_bowtie

iTrader: (8)

Just over the 223,000 mark here on my 99. Starting to use a qt of oil in between changes but she still pulls pretty damn nice for the mods. She's gone thru 5 maybe 6 transmissions, 3 tq's, 1 g80, 1 water pump and now I have a crack on the rad end cap. She is just starting to show her age, which was expected but as far as the motor goes, she's got a good strong tick to her.