I am wondering if anybody has suggestions for preping my jeep to sit up for 3 months. My wife can start it every week, but she doesnt know how to drive a standard so she wont be taking it out for a spin.
Well, you could loan it me. I'll start it frequently, and even test the 4 wheel drive system.
Seriously: three month is nothing. I doubt your battery will even lose its charge. I've left vehicles for much longer. Fuel Stablizer and trickle chargers would be the recommended things, but I've skipped those steps.
Stabil, pull the battery and leave it in a room temp dry place on a trickle charger, and some jack stands will do you well. Change the oil when you get back before driving.
If you are really concerned and over protective you can crank the motor a few times with the fuel pump fuse or power pulled so it doesn't start to get oil everywhere again. Probably not needed at all, but something to think about.
Jackstands/cinder blocks are a great idea to get the tires off the ground. Stabil was a good call, the battery is good too. Something to consider before you start it again when you come back is to change the oil right away. I'm a big fan of actually changing oil at 3 months/3000 miles, especially in dirty/dusty conditions. Its not that much work, but your engine will thank you greatly. Also, if you are parking it in a locked garage, tell your auto insurance company you won't be driving for 3 months. Oftentimes they will give you a significant discount on the rates for those months, but you won't have coverage to drive the vehicle until you reactivate the insurance.
When I left on my last 6 mo deployment, I just parked mine in the garage. The wife doesn't like driving it so other than the neighbor starting it once to get something out of in front of it while I was away, that was all the action it saw. Cranked right up when I got back with out any issues.
05' TJ Sport, Yellow, 4.0 I-6, 6 speed, D44 rear
1.25" body lift, 33x12.50 Wrangler Duratracs, Undercover Fab Tummy Tuck, Rokmen Control Arms
The biggest thing I'd do is put Stabil or Seafoam in the gas tank...while it's not common for the gas to go bad in a few months, I have had a few engines at work clog up due to bad gas after just a few months of sitting (with fresh gas after the last use).
Trickle charger as mentioned would be recommended...but if you disconnect the battery, it'll prolly be fine.
I never seem to run into probs with flat spots on tires on any of the radials used at work...don't know if that's just the luck of the draw, but never seems to be an issue with ME. Regardless...lots of good suggestions here.
"We don't build great brakes because we think you don't know how to drive, we build them for the guy on the road in front of you that doesn't." - Black Magic Brakes
Location: NJ during the week Delaware on most weekends
If your wife can start it once a week it should be fine parked in the garage. The biggest issue would be if the battery will hold up but if it is in garage and started it will be fine. By the way this may sound stupid but make sure she opens the garage door and lets it run for a few minutes. Just starting it and turning it off is worst for the battey than sitting for 3 months.