JK-Forum.com - The top destination for Jeep JK and JL Wrangler news, rumors, and discussion

Notices
JK Talk General discussion forum regarding thoughts, opinions and rumors about the Jeep JK Wrangler or related subjects that don't quite fit in the Modified, Stock or Electronics forums.

Switched to synthetic oil and this happened

Thread Tools
 
Old 03-28-2015, 09:13 AM
  #11  
JK Super Freak
 
Cutman's Avatar
 
Join Date: Mar 2014
Location: Nashville, TN
Posts: 1,408
Likes: 0
Received 6 Likes on 6 Posts
Default
Originally Posted by ill1cit
After switching to Mobil 1 synthetic I average from 23-26 mpg. But soon after switching I developed a massive oil leak from the rear of the oil pan gasket and had to replace it.
That would be awesome. Ill try it.
Cutman is offline  
Reply Like
Old 03-28-2015, 09:39 AM
  #12  
JK Junkie
 
Tooadvanced's Avatar
 
Join Date: Feb 2013
Location: West Richland Washington
Posts: 2,013
Likes: 0
Received 0 Likes on 0 Posts
Default
Just trying to figure out how ppl with jeeps get as good mpg as our 2015 mercedes gla250 with auto start stop lol. 26 town 32 highway. Lol so funny
Tooadvanced is offline  
Reply Like
Old 03-28-2015, 11:38 AM
  #13  
JK Newbie
Thread Starter
 
lvallejox's Avatar
 
Join Date: Aug 2013
Location: Paso Robles, CA
Posts: 94
Likes: 0
Received 0 Likes on 0 Posts
Default
Originally Posted by Greep
I went from 10w-30 to 10w-20 and got this... <img src="https://www.jk-forum.com/forums/attachment.php?attachmentid=603625"/> Then I switched to synthetic and got this! <img src="https://www.jk-forum.com/forums/attachment.php?attachmentid=603626"/>
Lol!

I didn't nothing different beside going synthetic. Used same 5-30w as recommended. Hopefully it stays in the 20s on hwy. It's not a daily driver. Don't know if that matters?
lvallejox is offline  
Reply Like
Old 03-28-2015, 11:51 AM
  #14  
JK Super Freak
 
Cutman's Avatar
 
Join Date: Mar 2014
Location: Nashville, TN
Posts: 1,408
Likes: 0
Received 6 Likes on 6 Posts
Default
Originally Posted by lvallejox

Lol!

I didn't nothing different beside going synthetic. Used same 5-30w as recommended. Hopefully it stays in the 20s on hwy. It's not a daily driver. Don't know if that matters?
I think my oil cap says 5-20....?
Cutman is offline  
Reply Like
Old 03-28-2015, 01:09 PM
  #15  
JK Super Freak
 
RoysRig's Avatar
 
Join Date: Mar 2012
Location: Mile High Colorado
Posts: 1,476
Likes: 0
Received 2 Likes on 2 Posts
Default
I've run nothing but synthetic for 3 years in 2 jeeps and never get above 20 mpg.
RoysRig is offline  
Reply Like
Old 03-28-2015, 01:12 PM
  #16  
JK Jedi Master
 
ronjenx's Avatar
 
Join Date: Feb 2008
Location: Maine
Posts: 12,872
Likes: 0
Received 163 Likes on 141 Posts
Default
I wouldn't base any conclusions on less than at least 3 or 4 tankfuls under the same conditions, and same gasoline blend.
ronjenx is offline  
Reply Like
Old 03-28-2015, 01:15 PM
  #17  
JK Junkie
 
14Sport's Avatar
 
Join Date: Nov 2013
Location: The Dirty South
Posts: 3,703
Likes: 0
Received 8 Likes on 8 Posts
Default
Originally Posted by Greep
I went from 10w-30 to 10w-20 and got this...


Attachment 603625


Then I switched to synthetic and got this!


Attachment 603626
Don't you love when you break the 1450 MPG mark? lol
14Sport is offline  
Reply Like
Old 03-28-2015, 01:22 PM
  #18  
JK Freak
 
tribulation138's Avatar
 
Join Date: Nov 2012
Location: CT
Posts: 849
Likes: 0
Received 1 Like on 1 Post
Default
I went back to stsndard 10w30.. synthetic made all my seals leaked. Replaced all seals and kept standard oil.
tribulation138 is offline  
Reply Like
Old 03-28-2015, 01:34 PM
  #19  
JK Jedi Master
 
ronjenx's Avatar
 
Join Date: Feb 2008
Location: Maine
Posts: 12,872
Likes: 0
Received 163 Likes on 141 Posts
Default
Originally Posted by tribulation138
I went back to stsndard 10w30.. synthetic made all my seals leaked. Replaced all seals and kept standard oil.
I wonder why. I've never had synthetic cause leaks in anything I've run it in, including my JK. (I'm running 5W-30 conventional in my JK now.
ronjenx is offline  
Reply Like
Old 03-28-2015, 01:59 PM
  #20  
JK Freak
 
tribulation138's Avatar
 
Join Date: Nov 2012
Location: CT
Posts: 849
Likes: 0
Received 1 Like on 1 Post
Default
Originally Posted by ronjenx
I wonder why. I've never had synthetic cause leaks in anything I've run it in, including my JK. (I'm running 5W-30 conventional in my JK now.
Theory is it had 50,000miles with standard oil. I switched to synthetic oil and the seals sweld. Plus i burn through about a quart every 500 - 700miles. So I rather buy a quart of 10w30 of standard penzoil.
tribulation138 is offline  
Reply Like



Advanced Search
Quick Reply: Switched to synthetic oil and this happened


Reply Closed Thread Share

All times are GMT -8. The time now is 05:09 PM.