Switched to synthetic oil and now..... - Ford Powerstroke Diesel Forum
Powerstroke.org is the premier Diesel Truck Forum on the internet. Registered Users do not see the above ads.
Reply
 
LinkBack Thread Tools Display Modes
  #1  
Old 04-04-2009, 02:49 PM
Compression Ignition Addict
 

Join Date: Feb 2009
Location: humble texas
Posts: 558
Thanks: 0
Thanked 1 Time in 1 Post
Feedback Score: 0 reviews
Question Switched to synthetic oil and now.....

Ok guys i recently switched my oil from 15w40 rotella to 5w40 synthetic rotella. And i have noticed on my pmt that my oil temp is running noticably hotter now. Now what i was wondering is is this because i switched oils?? or does it sound like somthing of a bigger problem? with the reg. oil my oil temp was usually running like anywhere from 180 to 190 with normal to hard driving and it never went over 200 until i was towning my 28ft 5th wheel. Now on normal driving running anywhere from 75 to 80 mph my oil temp is consisantly reaching the high 190s and more often than not its going over 200?? Anybody have any input on my current situation/dilema??

Thanks,
kevin.
Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
  #2  
Old 04-04-2009, 05:34 PM
Compression Ignition Addict
 

Join Date: Sep 2008
Posts: 362
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
how many miles have you put on the truck with the synthetic oil in it?
Reply With Quote Quick reply to this message
  #3  
Old 04-04-2009, 05:37 PM
Compression Ignition Addict
 

Join Date: Feb 2009
Location: humble texas
Posts: 558
Thanks: 0
Thanked 1 Time in 1 Post
Feedback Score: 0 reviews
maybe 300 to 500 miles if that...
Reply With Quote Quick reply to this message
  #4  
Old 04-04-2009, 07:00 PM
Compression Ignition Addict
 

Join Date: Aug 2008
Location: Central Texas
Posts: 773
Thanks: 0
Thanked 11 Times in 10 Posts
Feedback Score: 0 reviews
Next time try Amsoil AME 15w40 diesel synthetic.
Reply With Quote Quick reply to this message
  #5  
Old 04-05-2009, 02:08 AM
Compression Ignition Addict
 

Join Date: Apr 2007
Posts: 2,547
Thanks: 8
Thanked 14 Times in 11 Posts
Feedback Score: 0 reviews
There is no way it is the oil. If anything, you may have your oil cooler beginning to plug up on the coolant side. Definitely keep an eye on it. Also - you should never see more than a 15 *F difference bewteen EOT and ECT.
Reply With Quote Quick reply to this message
  #6  
Old 04-05-2009, 09:30 AM
Compression Ignition Addict
 

Join Date: Feb 2009
Location: humble texas
Posts: 558
Thanks: 0
Thanked 1 Time in 1 Post
Feedback Score: 0 reviews
yea thats what i was thinking that my oil cooler was messing up.....is there anyway to check this in further depth???
Reply With Quote Quick reply to this message
  #7  
Old 04-16-2009, 11:40 AM
Compression Ignition Addict
 

Join Date: Nov 2008
Location: California
Posts: 4,260
Thanks: 0
Thanked 1 Time in 1 Post
Feedback Score: 0 reviews
5w40 is thinner than 15w40. That’s why 5w40 is used for colder climates than warmer. It’s stated in the manual. The thinner oil produces better mileage cuz of the easer flow. But this also presents a lack of lubrication because it is thinner than 15w40.
Reply With Quote Quick reply to this message
  #8  
Old 04-16-2009, 11:46 AM
Compression Ignition Addict
 

Join Date: Apr 2007
Posts: 2,547
Thanks: 8
Thanked 14 Times in 11 Posts
Feedback Score: 0 reviews
Quote:
Originally Posted by smokersteve View Post
5w40 is thinner than 15w40.
Not at the operating temperatures of the engine. They provide the same protection in this temperature range. The 5W40 provides extra protection at the ambient (environment) temperatures since it will flow better at cold temperatures. The oil manufacturers obtain this wider range of performance with synthetic base stock AND VI additives (Viscosity Improvement). Ford did not recommend the 5W40 as a "year round" oil because at the time, they did not sell a 5W40 oil.

Last edited by bismic; 04-16-2009 at 11:50 AM.
Reply With Quote Quick reply to this message
  #9  
Old 04-16-2009, 03:03 PM
Compression Ignition Addict
 

Join Date: Aug 2008
Location: Central Texas
Posts: 773
Thanks: 0
Thanked 11 Times in 10 Posts
Feedback Score: 0 reviews
Quote:
Originally Posted by bismic View Post
Not at the operating temperatures of the engine. They provide the same protection in this temperature range. The 5W40 provides extra protection at the ambient (environment) temperatures since it will flow better at cold temperatures. The oil manufacturers obtain this wider range of performance with synthetic base stock AND VI additives (Viscosity Improvement). Ford did not recommend the 5W40 as a "year round" oil because at the time, they did not sell a 5W40 oil.
Very well stated
Reply With Quote Quick reply to this message
  #10  
Old 04-16-2009, 03:12 PM
Compression Ignition Addict
 

Join Date: Jan 2008
Location: Somerset, NJ
Posts: 1,718
Thanks: 0
Thanked 1 Time in 1 Post
Feedback Score: 0 reviews
i use my Amsoil 5w-40 all year long and no probs !!!
Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
Reply

Quick Reply
Message:
Options

Register Now

In order to be able to post messages on the Ford Powerstroke Diesel Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:

Log-in

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.



Thread Tools
Display Modes

Posting Rules
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are On
Pingbacks are On
Refbacks are On



All times are GMT -8. The time now is 04:05 AM.


Powered by vBulletin® Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Search Engine Optimization by vBSEO 3.6.1
Garage Plus, Vendor Tools vBulletin Plugins by Drive Thru Online, Inc.

vB.Sponsors