Notices
Stock JK Tech Bulletin board forum regarding issues with OE (original equipment) components of the Jeep JK Wrangler (Rubicon, Sahara, Unlimited and X) such as factory suspension parts, engine, transmission, body parts, interior fixtures and the on-board computer.

2007 3.8 Engine Longevity

Thread Tools
 
Old Apr 27, 2017 | 06:18 PM
  #1  
heycody's Avatar
Thread Starter
JK Newbie
 
Joined: Jan 2016
Posts: 54
Likes: 0
From: Norfolk, VA
Default 2007 3.8 Engine Longevity

What's everyones review of the engine? I've seen it eats up oil around 100k miles. I found a nice built one with low miles but just trying to see what i should expect since it's already at 63k miles
Reply
Old Apr 27, 2017 | 07:23 PM
  #2  
fray's Avatar
JK Enthusiast
 
Joined: Dec 2010
Posts: 114
Likes: 1
From: Webster, MN
Default

Originally Posted by heycody
What's everyones review of the engine? I've seen it eats up oil around 100k miles. I found a nice built one with low miles but just trying to see what i should expect since it's already at 63k miles
For every engine that burns oil, you have 5 that don't burn any. So keep that in mind.

My (2011) engine, started burning oil around 70k, and it's gotten progressively worse.

At 105k miles, it's still more then serviceable, but I simply don't want to deal with the oil consumption any longer so I'm replacing it with a remanufactured engine.
Reply
Old Apr 27, 2017 | 07:26 PM
  #3  
silverbullet88's Avatar
JK Enthusiast
 
Joined: Sep 2016
Posts: 256
Likes: 0
From: California
Default

I'm at 54k. Burn maybe half a quart maybe a little less every 1k. Sounds like I can expect it to get worse haha. Shit
Reply
Old Apr 27, 2017 | 07:34 PM
  #4  
karls10jk's Avatar
JK Jedi
FJOTM Winner
 
Joined: Dec 2010
Posts: 5,642
Likes: 486
From: Knoxville
Default

Cody, welcome back! The 3.8 isn't bad. Stick a little thicker oil in it 5w-30 or 5w-40 if it is really hungry for oil and she'll be alright.

153k miles strong on my 3.8
Reply
Old Apr 27, 2017 | 08:47 PM
  #5  
silverbullet88's Avatar
JK Enthusiast
 
Joined: Sep 2016
Posts: 256
Likes: 0
From: California
Default

Originally Posted by karls10jk
Cody, welcome back! The 3.8 isn't bad. Stick a little thicker oil in it 5w-30 or 5w-40 if it is really hungry for oil and she'll be alright. 153k miles strong on my 3.8
How much do your burn?
Reply
Old Apr 28, 2017 | 02:58 AM
  #6  
Mark Doiron's Avatar
JK Jedi Master
Veteran: Air Force
FJOTM Winner
15 Year Member
Liked
 
Joined: Mar 2007
Posts: 14,800
Likes: 374
From: Midwest City, OK
Default

208,000 miles on mine. Does not consume oil--might have added a quart when I pushed past 6K on a change. I've been running synth in all my vehicles for past 40 years and am careful to break in engine before changing to synth.
Reply
Old Apr 28, 2017 | 10:20 AM
  #7  
paintm4u's Avatar
JK Newbie
 
Joined: Dec 2015
Posts: 46
Likes: 0
From: Augusta, KS
Default oil

My 3.8 was starting to burn a little, but I added a half bottle of motor honey and it stopped so the next oil change I switched to 10w30, just a bit thicker oil and it hasn't burned any since. I worked in an oil refinery motor lab for 20 odd years and I think the 5 weight is just a little light for this engine. Just my opinion, but it did help.
Reply
Old Apr 28, 2017 | 12:43 PM
  #8  
karls10jk's Avatar
JK Jedi
FJOTM Winner
 
Joined: Dec 2010
Posts: 5,642
Likes: 486
From: Knoxville
Default

Originally Posted by silverbullet88
How much do your burn?
Not an ounce and I'm looking to keep it that way with my oil preferences. I do a synthetic oil (high mileage now) and add 1qt of Lucas stabilizer. Anyone can claim it's snake oil and that's alright- the jeep does what I ask it to do and doesn't consume oil.
Reply
Old Apr 28, 2017 | 01:13 PM
  #9  
paintm4u's Avatar
JK Newbie
 
Joined: Dec 2015
Posts: 46
Likes: 0
From: Augusta, KS
Default

Originally Posted by karls10jk
Not an ounce and I'm looking to keep it that way with my oil preferences. I do a synthetic oil (high mileage now) and add 1qt of Lucas stabilizer. Anyone can claim it's snake oil and that's alright- the jeep does what I ask it to do and doesn't consume oil.
Frankly I like Lucas products, they seem to work as advertised. What more could you ask.
Reply
Old Apr 28, 2017 | 07:36 PM
  #10  
silverbullet88's Avatar
JK Enthusiast
 
Joined: Sep 2016
Posts: 256
Likes: 0
From: California
Default

Originally Posted by karls10jk
Not an ounce and I'm looking to keep it that way with my oil preferences. I do a synthetic oil (high mileage now) and add 1qt of Lucas stabilizer. Anyone can claim it's snake oil and that's alright- the jeep does what I ask it to do and doesn't consume oil.
So 4 quarts oil and 1 Lucas?
Reply



All times are GMT -8. The time now is 03:56 AM.