Engine block heater?
JK Freak
Joined: Jun 2011
Posts: 612
Likes: 0
From: Where the winds of limbo roar.
...Personally I plug in when it gets down around 0 or so. I plug in mainly because it's WAY more easy on the engine at start up when it's warmer. Oil warms up faster and circulates better.
Remember, it's not a matter of "not needing it". Sure your jeep will probably start right up at -30 below. It's just a matter of making it easy on the engine.
I also don't leave it plugged in all night. I run a timer and just have it come on a couple hours before I leave in the morning.
Remember, it's not a matter of "not needing it". Sure your jeep will probably start right up at -30 below. It's just a matter of making it easy on the engine.
I also don't leave it plugged in all night. I run a timer and just have it come on a couple hours before I leave in the morning.
JK Enthusiast
Joined: May 2010
Posts: 347
Likes: 0
From: Toronto
If you didn't get one installed at purchased just buy a magnetic block heater from you parts store for $10-$20 , I've used these on heavy equipment for years on cold mornings , there cheap and they work.
JK Super Freak
Joined: Jul 2011
Posts: 1,384
Likes: 2
From: Calgary, AB
It better not snow as I still have my doors and roof off! 
On my TJ, over the last winter it had a battery in desperate need of replacing so anytime it would be around 0 Celsius it would plug it in. When the battery was new I think I plugged it in when it was -20 or below and that was it. I've had batteries in cars start after being all night outside in some of our really rare cold times at -40 Celsius without being plugged in and it would start right up, but that was a optima battery. The cabin heater does warm up a lot faster when its plugged in, and its a lot easier on the engine as well. I plan to plug my JK in anytime it gets chilly this winter
On my TJ, over the last winter it had a battery in desperate need of replacing so anytime it would be around 0 Celsius it would plug it in. When the battery was new I think I plugged it in when it was -20 or below and that was it. I've had batteries in cars start after being all night outside in some of our really rare cold times at -40 Celsius without being plugged in and it would start right up, but that was a optima battery. The cabin heater does warm up a lot faster when its plugged in, and its a lot easier on the engine as well. I plan to plug my JK in anytime it gets chilly this winter
JK Jedi
Joined: Aug 2007
Posts: 5,813
Likes: 0
From: Kenai Peninsula, Alaska
And those small little oil pan heaters that you silicone onto the pan work great too. But make sure you get a small one or it will get to oil too hot.
JK Enthusiast
Joined: Aug 2011
Posts: 130
Likes: 0
From: Egg Harbor Township, NJ
location
Hey guys.. I also ordered the Engine block heater for my New Ruby.. any one have a picture of where it is located in the 2012.. wanna make sure i know where it is when i pick mine up.
JK Enthusiast
Joined: Oct 2010
Posts: 495
Likes: 0
From: Dallas, TX
JK Enthusiast
Joined: Sep 2009
Posts: 337
Likes: 0
From: Dallas, TX
I'd say when you are looking at nights where the temp will get down into single digits. Even then....you don't really, really need it. But if you are looking at negative temperatures at night...and single digits in the morning when you go to start it (especially without the sun warming things up)..that is a good time to use it.
Damn....I don't want to think about winter.....
Damn....I don't want to think about winter.....
