How High for Synthetic? - 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 11-01-2012, 08:25 PM
Compression Ignition Addict
 

Join Date: Nov 2009
Location: Branson, Missouri
Posts: 318
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
How High for Synthetic?

I run Mobil 1 Turbo Diesel 5w-40 (full syn). How hot can it get before it compromises the oil?

Here is the long version, again-
Delta temp 2-3 degrees when I first installed the DashDaq 2 years ago
delta temp around 20deg, oil cooler replaced 8k miles ago at dealer
deltas after change were about 8-10
deltas gradually 20-30, 40-50 with 5th wheel (4 weeks ago)
flush with RESTORE and RESTORE PLUS,
change thermostats for good measure
temps 192-202ish, but spiked up to 215 once for no reason. Heat seems to take a while to get hot, but when it does its all at once.
filter kit arrived today...
probably asking dealer to order a new oil cooler tomorrow, will return to stock over the weekend to get the wrench light.

However, we have a camping trip planned next weekend. Truck might not be fixed. Just put 130 dollars worth of oil in it and don't want to ruin it.

Anyone think I have a bubble?

PS, I have about had it with this situation.
Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
  #2  
Old 11-01-2012, 09:10 PM
Compression Ignition Addict
 

Join Date: Mar 2012
Location: Alberta
Posts: 1,314
Thanks: 3
Thanked 10 Times in 10 Posts
Feedback Score: 0 reviews
I am pretty sure I read one time that at 250 f is when the properties start to be compromised. I have seen as high as 230 on mine a couple summer ago but it hasn't hit that high since that one time.

Last edited by superduty6.4; 11-01-2012 at 09:29 PM.
Reply With Quote Quick reply to this message
  #3  
Old 11-02-2012, 07:06 AM
Compression Ignition Addict
 

Join Date: Oct 2010
Posts: 4,316
Thanks: 15
Thanked 68 Times in 66 Posts
Feedback Score: 0 reviews
So what are your delta's currently? Did the flush help your deltas? If the temp difference is 40-50 degrees i would not be using the truck until its fixed. Maybe you should look at that additional oil cooler from BPD.
Reply With Quote Quick reply to this message
  #4  
Old 11-02-2012, 07:16 AM
Compression Ignition Addict
 

Join Date: Nov 2009
Location: Branson, Missouri
Posts: 318
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
right now, it is USUALLY running 192-194 and 202 to 204... 10 degrees should give me a P012F code, but tuner is hiding it...

So yes, the flush and CAT ELC seemed to help. There is still that 8-10 degree spread but the EOT isn't 220 anymore, HOWEVER, last night driving mildly on secondary road all of the sudden it was 215 and went to 220. I THINK I might have an air pocket in there because my damn heat doesn't work right. Even at operating temp, its cold, then all of the sudden blasts me with hot air. If there was an air lock in the cooler lines, you would think that might cause an issue. Yes?

Im about to go on a parts run, and going to stop by the ford dealership and talk to the diesel tech.

I might try to jimmy rig the vacuum pump to the degas bottle and refill through the rad drain. I know sounds weird, but.....

If I have to cancel this trip next week, the wife is going to be livid!
Reply With Quote Quick reply to this message
  #5  
Old 11-02-2012, 07:37 AM
Compression Ignition Addict
 

Join Date: Oct 2010
Posts: 4,316
Thanks: 15
Thanked 68 Times in 66 Posts
Feedback Score: 0 reviews
get up to operating temp and carefully take the cap off the degas bottle. If you have high idle leave the high idle on and squeeze the upper radiator hose. That is how i got the air out of mine after the flush. Your deltas arent too bad at 10* as i believe it wont throw a code until 15+ degrees. Either way your deltas shouldnt be that high.
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 04:54 PM.


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