Castrol GTX 10w30 (switched at about 50k ago)
In terms of maintenance, I run 3-4k miles between oil changes, often as high as 6k when I was losing a quart every 500 miles, after switching to 10w30, I'm only losing about a quart every 1000 miles.
Generally beat the recommended maintenance schedule in terms of flushes and whatnot.
Lost the tranny at about 73k miles.
Lost the power steering pump at about 90k miles. Still leaks, but is manageable.
Developed a high pressure radiator leak at about 140k miles, had an ice blow out at about 155k. Replaced and lucky I didn't blow anything in the block.
I'd say I'm a 1.5 on maint. Currently running Valvoline high mileage, but I think I'm going to switch to Rotella after reading all the people using it here with good results. My Dad bought the WJ new, sold it to me about 3 years ago. Bought it for our youngest son while he was in high school. Off to college now and he couldn't afford to put gas in it, so we got him a little station wagon (he plays drums) and the WJ is now mine. I have a company truck, so it sits a lot.
My Dad replaced the radiator before I got it. I replaced the tranny (Pulled my 4000lb bay boat with overdrive on) and front brake rotors. Sorry, don't remember mileage.
I love this vehicle. The power is amazing. I plan on putting on a small lift since I don't wheel often or very hard, just for looks I guess.
I'd say I'm a 1.5 on maint. Currently running Valvoline high mileage, but I think I'm going to switch to Rotella after reading all the people using it here with good results. .
Rotella is great stuff but it's really more of a 4.0 thing due to the flat tappets. While Rotella would still work fine in your 4.7 in all honestly the Maxlife you're already using is a better match for it.
4.0, Selec-trac, D30/D35
208,123 miles, all original drivetrain and running gear.
Replaced fuel pump two weeks ago, along with the filter, both were factory. Also replaced the front axleshafts and fluid in everything. I use kendall 15w40 and wix gold filters, and regular oil in everything else.
I'm a 1.5 as far as maintenance, and a 3 as far as mods go. LOL
A shade under 193,000. 2000 V8 Limited. Got it at 150k. Since then no major internal issues. I know the alternator was done before I got it. Just did a water pump. I use Champion plugs, Mopar, Fram, or QS filters, have a k&n intake, and use usually Quaker State conventional 5-30. Never used anything out of the ordinary on my jeep, just what it calls for. Oil changed every 3-4k miles. Im pretty anal about it and try to fix things when it breaks or if I know it needs to be done.
'03 Limited 4.7, 75000 miles
Mobil 1 5-30 changed every 6,000
Trans was rebuilt at app 60,000 miles probably due to improper towing behind a motor home. I got the car at 67,000 miles and had to have it rebuilt again. The parts in the trans were new, but put together wrong. The coolant lines were not cleaned out either resulting in a lot of debris in the pan. New seals, correct adjustments and haven't had any problems since. Replaced power steering pump--original was cracked.
About 2.5 on maintenance schedule
Mine since 40K mi. I ran Valvoline 10w30 Dino and Fram TG, until 70K, then MaxLife Syn Blend and mopar filters since. Tried MaxLife Full Syn on the last change (perhaps incorrectly) and now she leaks a little.
I maintain on schedule; a 2.5 on the scale.
Biggest issue has been a torque converter replacement at 100K.
On vehicle Maintenance Iam a 5+
I have replaced every thing from an heater core, to designing a biger an better radiator for our beloved 4.0 I6 motors .
I use Rotella T6 motor oil an a full time jeep maintenance mechanic only for our WJ's Lol'' . Helped rebuild my own motor to an 4.6 an polished an ported my 4.0 head . But not to brag'' just look at my signature .
Thanks for looking .
2000 WJ 4.0 NEW 4.6 stroker. W/ 4'' Tera Flex Long arm kit, KING 2.5s w/res front,2.5 Kings w/res Rear,Tom wood front drive, 33 x 15s KM2s, Bassett 15'x8 ,fully addjustible Tera flex Track bar, IRO 3link rear, EBC Dippled & sloted front disks, EBC green stuff pads, Iceland off road fender flairs''.