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Old Apr 26, 2010 | 08:49 PM
  #1  
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Oil Type

Hey everyone! I want everyones opinion.

My 6.0 just turned 75,000 GREAT miles. Its awesome!

I have always had the dealership change my oil with whatever motorcraft oil is.

I was wanting to switch it to syn vs regular. Would it help the truck? Is it too late to change it to syn?

What kind of syn does everyone use and how many gallons do I need to do a change?

Thanks in advance!
 
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Old Apr 26, 2010 | 09:20 PM
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almost 4 gallons, use 5w-40 synth. Major brand CJ-4 or better rated.
 
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Old Apr 26, 2010 | 09:37 PM
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I use Amsoil 15-40. Have done so since day 1. Shouldn't be a problem for you changin over to syn now.
 
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Old Apr 26, 2010 | 09:51 PM
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If you want your dealership to continue to change your oil, Motorcraft makes a synthetic oil but cost big $$$.
 
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Old Apr 27, 2010 | 05:30 AM
  #5  
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How much does the dealership charge you for a convential oil change?

Jason
 
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Old Apr 27, 2010 | 12:14 PM
  #6  
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I had a truck place do it the other day for 175.00 which included fuel filters.

What Brand do you guys like on the Syn? Whats the most popular and successful?
 
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Old Apr 27, 2010 | 12:26 PM
  #7  
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Originally Posted by tolliewolly
I was wanting to switch it to syn vs regular. Would it help the truck? Is it too late to change it to syn?
I can definitely tell a difference in the way my truck runs with synthetic oil. Additionally given the cost of synthetic vs conventional for the number of miles I drive each year (around 12K) I consider the cost difference to be minor. I think the synthetic vs conventional question is something that has to be considered with respect to each persons situation, driving habits, climate, etc. For me synthetic is the way to go but that doesn't mean this is best for everyone.

Originally Posted by tolliewolly

What kind of syn does everyone use and how many gallons do I need to do a change?
I use Rotella but you will find 6.0L owners that use pretty much every major brand of oil on the market. Just make sure that it is a properly rated diesel oil and remember to only use Racor or Motorcraft filters. I buy mine from DieselFiltersOnline where they are much cheaper than my local dealership.

Follow this link for a guide to changing oil in case you haven't done it previously.

The owners manual says to use 15 quarts for oil changes, however I use around 13.5 to 14. I try to get the oil level to about halfway between the min and max on the dipstick.

http://www.dieselfiltersonline.com/D...ence-Sheet.pdf
 
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Old Apr 27, 2010 | 12:40 PM
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I used Rotella T6 5W-40 on my first oil change. Cost me about $95 with filter.

Jason
 
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Old Apr 27, 2010 | 12:56 PM
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Originally Posted by tolliewolly
I had a truck place do it the other day for 175.00 which included fuel filters.

What Brand do you guys like on the Syn? Whats the most popular and successful?
Hope the're using Racor/Motorcraft filters.
 
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Old Apr 27, 2010 | 01:36 PM
  #10  
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15-40 if you consistently tow 500 or more miles at a whack....
 
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Old Apr 27, 2010 | 02:00 PM
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Originally Posted by droffan
15-40 if you consistently tow 500 or more miles at a whack....
Why do you say this?

Follows is what I believe to be the latest recommended viscosity chart which was released after Ford started selling their own synthetic oil.

 
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Old Apr 27, 2010 | 02:05 PM
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Originally Posted by droffan
15-40 if you consistently tow 500 or more miles at a whack....

5W40 will work fine if you tow 5,000 miles at a whack.
 
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Old Apr 27, 2010 | 02:12 PM
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good point and thanks...
 
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Old Apr 27, 2010 | 02:29 PM
  #14  
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ok well I was trying to see if anyone was using Mobil 1 Delvac?? or Rotella Syn.

I was going to switch the truck to syn. Would you even switch it?
 
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Old Apr 27, 2010 | 02:42 PM
  #15  
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Originally Posted by tolliewolly
ok well I was trying to see if anyone was using Mobil 1 Delvac?? or Rotella Syn.

I was going to switch the truck to syn. Would you even switch it?
You'll find that oil threads meander all over the place. Do a forum search on previous threads of this type and you'll see what I mean.

I use Rotella synthetic (reference my post #7) and lots of others do as well. It is a popular oil among 6.0L owners.

Based on how it works for me I recommend synthetic oil.

If you don't get the info you are looking for from this thread use the forum search and you'll find enough oil threads to keep you reading for days. There have been so many on FTE that lots of people don't even open up new threads on the topic because pretty much every conceivable point has already been discussed over and over and over again.
 
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