My XJ has been a beast in this 0 degree weather.
800+ CCA battery just shows a slight drag, but it pretty much fires right up.
I've been giving it a minute or so to idle before driving off.

Go XJ!

 

My xj acts like nothing is going on out there, it's like any other normal day

 

My ****ty battery is really feeling this cold weather lol. I need a new one

 

I've got a brand new battery in it, but it wasn't the one I wanted, so I have less cold cranking amps than I would like. Definitely felt some drag on it when I started it yesterday.

Also it does this weird thing where there RPM gauge shows 0 and the fuel gauge slowly climbs up past full and burries the needle . Second time it has done it in cold weather, I just shut it off and start again and its normal.

 

Not worth having a crappy battery.
Go treat yourself to a new one.
One of the few parts that can leave you stranded.

 

No clue my doors are frozen shut, good thing it's not a DD.

 

-60 wind chill and it started right up

 

Mine started great today when it was only 7! But then again I have put in a 800 CCA battery, new starter, and new alternator all in the last 6 months!

 

After rebuilding my starter, a 160 amp alternator and big battery, my XJ is doing just fine at -5*F. Buttery smooth starts with Rotella T6 but I feel like Neon injectors would only help more.

 

I just rebuilt and installed 703 injectors in mine. Got some crappy 550CCA Battery Warehouse battery that has been doing suprisingly well. Mobil 1 5w30 for now. Runs perfect and starts up fine in -2*.

 

The only problem that I have had so far is today, when I went out at 4 am.m to go to work, she started fine and drove as usual but, part-way to work, she started overheating (she's NEVER overheated before). It turns out that the anti-freeze was weak and it froze in the single-digit weather. On the way home from work, not a problem. I guess that it's time for another flush and fill. It has been about 7-8 months since I did the last one.

 

Well after failing to do a flush and fill after a coolant leak in the summer that was due to a missing t-stat bolt. No clue how that happened, replaced it and added water and forgot about. Was reminded this morning when I woke up to a frozen cooling system. Drove an hour to work with obviously no heat, had to, dropped it off at a Midas for a thaw flush and fill. Picked it up a few hours all better. Love these engines but definitely dodged a bullet this time.

 

Busted the rear right parking light (same bulb as stop light). Brake still works though... might wait until spring to repair lol

 

Started right up in -20 degrees. Optima Yellow Top FTW. Then got to use it to jumpstart the work truck (2012 F550)

 

My early 90s ranger would do that. Not fun when you work overnights and want to get home after a shift.