who 5.3 has the most milage
 

Just like the topic says my truck is a 99 been trouble free so far it has 275k on the clock and still getting it. what kinda milage do yall have?

mine had 278,000 on it when i swapped to the 6.0. Ran strong. 10.0 in the 1.8th all stock. lol

187,xxx on mine.

my dads has 272,xxx on his.

My 99 has 86,000 and still runs like new...

Mines just a baby at 123k. Put the blower on around 100k, and put the cam in last weekend.

Replaced:
1 hub
shocks
steering box, inner/outer tie rods, pitman arm, idler arm, idler pivot
A/c compressor (not cheap :( )
Rebuilt trans (due to terrible tune by wait4me)
passenger front speaker
driver's seat memory module
backseat seatbelt tensioner

I know there's more but drawing a blank right now

my 4.8 has 127xxx on her and i just installed a mp 70 turbo lol

My 03 just hit 160k

Hey duramaxxin! Good to see ya around!

300,000 aint sheet on an LS engine!!

My truck had a 183,000 mile 5.3, when i pulled it and looked at the cylinder walls they still had cross hatching!!!

A lousy 115,000, just got back from trip to N.C. (1300 miles round tirp) 17-19 mpg with 5 people 70-75 mph, and a load of crap. Truck still all stock.

i did some work on a 99 silverado z71 for a customer a while back and it was showing 430,xxx.he swears thats the original motor and its never been touched.he said he bought the truck new and hes put 1 tranny in it and i only put a power steering hose on it.i can beleave that.a 5.3 is tuff

I got 235K on my 02 5.3 - still going.

Pulled one out of a buddies truck at 300k due to a lifter coming apart but other than that it ran like a champ..

260k+ On My second truck both 5.3's, I've replaced every accessory, suspension, steering and brake part in the past 8 months.... but never pulled a valve cover or dropped tranny on it. The truck still drives like new, w/ the exception on the 22's and the slow windows lol

x2 on the slow windows, and the rust... errrr:( 02' with 119,000 just getting broken in

Just clicked over 247,000 miles on my way to work today. Runs strong and looks great!

245,563 runs great

I have a little over 250K, runs low 15s holds 60 PSI of oil pressure at 75 MPH. Original 5.3 untouched, original 4l60E (vette servo at 168K) and on the 3rd 10 bolt lol.

3rd 10 bolt? What'd you do to the first two?

260k on an 01 and runs great. I did just have to put all new injectors (3 failed at same time, maybe bought some bad gas?) and it uses a quart of oil between changes. Put an 06 tranny in around 200k I think.

Just one tranny? For real?

my 01 SOM sierra has 165k. only mods are 22s and vette servo!:nod: What type and weight oil are you guys using?

G80 blew in the first one. 2nd one self destructed (gears limited slip) and now the third one is a factory open rear end with 70K miles on it.

03 w/ 171,000 origonal tranny, oil pressure is a bit low, and a few minor problems with the guages and the 6 disc broke 3k miles ago :(

I have a customers truck we have worked on since new that has 687,800 and change. It is an oil field gauging truck we've replaced 3 transmissions countless fuel pumps and the posi trac fragged and destroyed the stock rear end. But the motor has never been into before and still runs like a top and does not use a drop of oil. It has had chevron delo 15w40 diesel oil in it since new.

My truck has 323,000 miles on it and still runs like a champ. Was planning to replace the engine by now but I guess i will have to wait longer this thing wont die. :burnout:

687,800 :eek2: I thought I had "high" mileage at 194,000 lol

I want to see the inside of that engine when it finally dies. Thats just insane. My 4.8 seems new with a measly 130xxx on it.

That's some serious mileage! And at 15mpg average and $2.50 gas, that's $115,000 spent filling it up.

I have a 4.8L with 320,XXX on it in my garage (original out of a '99). Its now going into my boat (the valvecovers have never been off).

My 2000 Z71 has about 136k.
Replaced 1 upper ball joint
Trans rebuilt at 118k, no 3rd or OD
Other than that its been brakes, belts, and tires. Serviced all fluids around 100k and uses 2qts of oil every 3-4k miles.

297k on a 2003 Yukon... 9k hours on run time

At 80k miles, My 2000 Silverado was burning 2 quarts of oil every 2k miles... Switched to Valvoline High milage 10-30 and hasn't used a drop of oil since... used a little on first oil change but by the second one it stopped. No oil leaks either almost 140K now. Noisey as hell when it sits or its really cold...

Damn Piston slap on these early ones... Still has around 60 PSI on start up and never drops below 40 PSI in the hotest conditons. Gas milage sucks could probally use a set of 02 sensors and I bet the piston rings arent in the greatest shape from it running hot and low oil...

changed
1 set of plug wires
2 sets of spark plugs
1 water pump. Turned out to be bad gaskets but already had the pump so I changed it out any way.
1 Fuel Pump
2 Main belts
1 Ac belt
1 set of rotors and pads all 4 corners
3 sets of tires
1 set of rims
1 Drive shaft bearing on the 2 peice drive shaft.
1 trans not because it went out but because it felt week esspecially after long drives and I wanted to maintain reliablity. Also didn't have a cooler on it.
1 center jump seat/arm rest cover... The lids always go bad...
Service fluids regularly or as needed if sooner

My buddys truck with a 5.3 has 275k miles and still loves the 150 shot. His 4.8 truck had 285k miles and was taking a 250 shot like a champ.

My '03 with 90k on it doesn't run "like new" anymore... I think it might have something to do with the air compressor kb racing sent me though :secret2:

4.8, but I just passed 200,000 miles, and no engine or transmission trouble until a couple weeks ago. The engine did not use a drop of oil between oil changes (every 3,000 miles). NOW, however, I have all of a sudden smoke pouring out of the tail pipe at start up, and oil consumption like crazy.

99 5.3 with 279k , runs like a top.

How about had?... I used to have a 03 avalanche with 325k :0 i sold it a few years ago and when i ran in to the buyer i asked about her and he mentioned he was close to the 400k....

My old 1500 had 187k when it was totaled. Current truck has a little over 166k now and ran a best of 10.17 in the 1/8 in 4WD :cool:

Oil pressure is almost always right at 60psi sometimes gets as low as 45-50 depending on the day. Uses maybe a quart every 6k with Amsoil 5w-30.

379k on a 07 just traded it in. Bought it new

I have a buddy who sold his 03' Yukon at 285,XXX and another one who has an early 00's RCSB with 23X,XXX on it, stalled w/ factory 4L60 and still sprays it from time to time on a 100 shot. My '05 only has 48,135 on it.