'00 5.4 here, 220,000 miles and counting. Zero smoke, oil loss, etc. Bought it because I need a truck once in a while and I'd like to keep the day to day BS miles off my Jeep.

 

i have a 2001 5.4 with 372000 miles on it still runs like a champ. use 5w-30 oil and MMO in oil and gas tank

 

I had a 2002 4.6 Screw. Traded it in at 198,XXX miles. Nothing major ever happened. Even changed the original plugs at 146,XXX miles with no problems. That was a good truck, but I have my 2010 to help me move on.

 

I drive an 08 Crown Vic PI at work every day. Currently has 107,000 very harsh city miles on it. It also has an hour meter that measures idle time in Park and Neutral. According to Ford, each hour idling is equivalent to 33 miles driven on the engine. The current hour meter reads in excess of 7000 hours. Altogether, it's fast approaching 250K miles of wear. Is say these engines are plenty tough.

 

I'm at 228000 miles on my 5.4

 

You are exactly right. That is why mileage only isn't a good indicator of engine and transmission reliability. A person commuting a hundred miles a day will get a lot more mileage out of their vehicle than grandma that drives around town doing her shopping and never gets out of the city.

 

My 97 has about 340k on it. The previous owner had the engine replaced at 315k. The engine had run fine but when he took it in for plugs they all broke off so he replaced the engine. The used engine he put in had 100k on it plus the 25k he put on since the change. The original owner also had a DUI charge and had lost his licence so the truck sat for 7 years in his back yard. It started right up with a new battery and ran great.
I am tearing into it in an attempt to make a nice truck out of it. Biggest issues i see with this truck is rust on the bottom of the core support, kick panels and the floor pan.
I will know more when i pull the engine apart for inspection. If there are no cracks or flaws in the heads and block i will build it back up.

 

I have 197,000 - 198,000 on the clock for my '02 4.6. Not much oil consumption at all folks. I'm using Mobil 1 extended and changing every 12k miles per Blackstone lab report. I use a bypass also. It uses 1 quart at 6k or half-way point.

Only issues so far: front seal leak and coil-on-plugs misfiring, alternator, rear axle seal leak, new radiator, and starter, odometer glitching/fading out, and two ODII fault codes for vacuum leak and EGR control. I bought it in '04 with 7k miles for 14 something. Steal. I baby it - and no rust. Very happy.

 

My '99 5.4 4x4 Lariat has about 124,000 miles and the ONLY engine problem I have had is that a spark pack went bad at about 80,000. Only other problems I've had have been the passenger side window motor (replaced it myself following a youtube video on that very thing) and the fuel pump went at 120,000 (hear this is a usual thing at that mileage).

A friend of mine has (had) an '01 virtually identical to my truck and the engine finally went just short of the 500,000 he was hoping for.

 

You old bastid!

I was too

I belong in the least miles on your triton thread, I average about 2-3k a year on my F150. I hope I don't have any of the cam phaser issues that seem so prevalent.

 

Bought the truck with 40k on the odometer. It has 86k on now with most of that being roughly twice as much hp/tq then it did from the factory. Engine internals are 100% stock (other then cams) and Transmission is 100% stock too. I'm amazed that the truck has handled more then it was ever designed for without an issue. (Although I just jinxed myself I'm sure)

 

In a previous post I said my friends F150 died just under 500, if wasn't the engine, it was the transmission! Saw him yesterday and his '01 5.4 is still going strong.