Lost mileage with synthetic blend??? - 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 10-21-2012, 10:31 AM
Compression Ignition Addict
 

Join Date: Sep 2010
Location: San Marcos, Tx
Posts: 265
Thanks: 6
Thanked 1 Time in 1 Post
Feedback Score: 0 reviews
Lost mileage with synthetic blend???

So wally world had Rotella 10w30 synthetic blend on sale for the same as regular 15w40, I figure winters coming so why not. 2000 miles later and Im noticing 3/4 to 1 mpg drop in mileage. Blow by and general oil consumption also seem to be a bit higher. 208,000 miles on motor its always drank oil since I bought it at 164,000 miles, about 1 quart every 2500 miles....

Anyone else run into this when going to synthetic or synthetic blend?
Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
  #2  
Old 10-21-2012, 10:34 AM
Premium Member
 

Join Date: Sep 2011
Location: St.Louis Mo
Posts: 1,580
Thanks: 1
Thanked 6 Times in 6 Posts
Feedback Score: 2 reviews
i run T6 full synthetic 5-40 or schaeffer 15-40 full synthetic i always stay with a thicker blend winter or not cause either way the engine still gets up to operating temps.
Reply With Quote Quick reply to this message
  #3  
Old 10-21-2012, 10:36 AM
Compression Ignition Addict
 

Join Date: Feb 2008
Posts: 8,439
Thanks: 72
Thanked 215 Times in 203 Posts
Feedback Score: 0 reviews
5-40 for me nice starts in winter

but no noticeable issues when going from Dino to syn
Reply With Quote Quick reply to this message
  #4  
Old 10-21-2012, 11:21 AM
Compression Ignition Addict
 

Join Date: Sep 2010
Location: San Marcos, Tx
Posts: 265
Thanks: 6
Thanked 1 Time in 1 Post
Feedback Score: 0 reviews
Yeah Im thinking the lighter weight is causing the excessive blow by and maybe to thin causing loss of mpg.

It doesnt really get that cold were Im at, so maybe Ill go back to regular, Is there a heavier weight than 15w40?
Reply With Quote Quick reply to this message
  #5  
Old 10-21-2012, 01:41 PM
Compression Ignition Addict
 

Join Date: Oct 2011
Location: Chico, California
Posts: 3,576
Thanks: 17
Thanked 108 Times in 103 Posts
Feedback Score: 0 reviews
there is 20w-50
but usually 5w-40 or 15w-40 is the norm
Reply With Quote Quick reply to this message
  #6  
Old 10-21-2012, 09:27 PM
Compression Ignition Addict
 

Join Date: Dec 2011
Posts: 248
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
I'm a little unclear on my oil choice. I'm using Rotella 15w-40. I live in South Florida, so cold literally never happens. You guys think that's a good choice, or should I got with a heavier/lighter oil?
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 09:46 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