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I have been working thru various systems on my 86 Jeep Comanche. So far I have worked on the following systems 1. Serviced front axle with new u joints on both sides, new brake pads and new gear oil in the differential. 2 .Serviced rear axle with new wheel bearings, brake shoes and brake slave cylinders and new gear oil in differential. 3. Changed engine oil and filter twice. 4. Changed oil in AX5 transmission and NP207 transfer case. 5. The truck came to me with steel wheels mounted 31x10.5-R15 BGF All-terrain tires with about 20% tread left. These rubbed a little bit at certain suspension conditions. 6. Replaced wheels and tires mentioned in No. 5 with set of Jeep alloy wheels mounted with 30x9.5-R15 BFG All-Terrain tires with about 90% tread. No cracks on tires and No clearance issues. 7. Replace plus lead to starter and wire from starter relay to starter solenoid. Originals had burnt on exhaust manifold and shorted together.... 8. Greased every zerk I could find. The oil pressure seems a little low on the 2.8, but there are no knocks and pressure meets the 10psi per 1000 rpm rule with Shell Rotella 15w- 40. The engine leaks oil enough to coat the bell housing and transmission. I think this might be coming mostly from the back of the intake manifold as verse the real main seal as there is more oil towards the top of the bell housing. All things considered, the engine runs pretty well, I have done a couple of 250 mile trips with no issues. Reducing the tire size reduced the overdrive aspect from about 11% to 8% which makes 5th gear a little more usable. The speedo is about 4 mph slow at 55. I usually shift into 5th at about 60 mph. The mileage on a recent long trip was about 16.5 mpg running at about 65 - 70 mph with about 1200 pounds in the back (2 motorcycles and a drill press). Overall, the old truck rattles and one has to slam the doors to get them to latch, but it drives OK. Reminds me of my maternal grandfather, old, cantankerous, and played a mean game of Cribbage. His name was Herman. My grandfather passed away a couple of decades ago, but I think I will apply his name to this old Comanche. Herman. There is a 94 Carmro 3.4 engine waiting in the wings.

Hey guys, I got a question. the guy I bought my mj from told me to only use amsoil 10w30 because that's all he's ever put in it. That stuff is so expensive and hard to find in jersey I don't want to keep changing the oil with amsoil. Should I continue using synthetic? Or does it really matter what oil I put in it? What oil are you guys running? Thanks.