5-40 synthetic oil? - 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 04-05-2008, 06:37 AM
Powerstroke.org Rookie
 

Join Date: Jan 2008
Posts: 3
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
Cool 5-40 synthetic oil?

Hi Everyone. First, thanks to all of you contributing on this forum. I have learned a huge amount about my ps. I have a 97 f-350 crew cab, 7.3ps. The truck has had alot of new parts, like new injectors, rings sets, glow plugs, relay and so forth.
My question; CAN I RUN ROTELLA T 5-40 SYNTHETIC OIL IN MY POWERSTROKE? My truck runs exceptionally well once warmed up, but runs very very rough when 1st started up, even if temp in the 70's. That is if it sat and cooled down, say after being parked for 8 hrs, when ready to leave work. All the glow plugs and relays test good. I just think it is the thickness of the oil, and the fact my truck has 356,000 mi on it. once warmed up runs like a champ. Thanks for any help.
Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
  #2  
Old 04-05-2008, 06:51 AM
Learning the 6.0 game…...

 

Join Date: Dec 2006
Location: West Sacramento
Posts: 3,752
Thanks: 7
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
I'm running amsoil 5-40
Are you in cold climate?
Reply With Quote Quick reply to this message
  #3  
Old 04-05-2008, 07:00 AM
Compression Ignition Addict
 

Join Date: Feb 2007
Location: Maine
Posts: 281
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
I changed out to Rotella 5w-40 Synthetic before this winter and it was night and day on the starting. I don't have the opportunity to plug it in during the winter so it always start cold. I have no trouble all the way down to zero with the syn. Idles much smoother as well, no "romp, romp" when cranking and cranks much faster. There is not problem running syn in your engine or switching back if you want, many many people will tell you this and if anyone tells you not to run syn because it will mess something up or not to switch back than the don't know what they are talking about. I had my Air intake heater (which you're probably doesn't have) and all my GPs and GPR checked out too. Alot of people also run 5w-40 all year round.

Although rough starts in 70 degrees shouldn't really be happening, are you seeing excessive white/black smoke when starting at 70 or below?
Reply With Quote Quick reply to this message
  #4  
Old 04-05-2008, 04:02 PM
Compression Ignition Addict
 

Join Date: Jan 2008
Location: Somerset, NJ
Posts: 1,720
Thanks: 0
Thanked 1 Time in 1 Post
Feedback Score: 0 reviews
i run Amsoil 5w-40 in my 2006...luv it !!!
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 12:00 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