Moving up in the world - Ford Powerstroke Diesel Forum
6.0L Performance Parts Discussion What has or has not worked for you?

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 06-06-2009, 05:39 PM
Compression Ignition Addict
 

Join Date: Nov 2008
Location: California
Posts: 4,260
Thanks: 0
Thanked 1 Time in 1 Post
Feedback Score: 0 reviews
Moving up in the world

I have Royal Purple synthetic 15w40 eng oil in now. I wana be nicer to my truck so Im switching to AMSOIL. Im looking at their site and cant deside on which oil to use.

AMSOIL Synthetic Diesel Motor Oil, Engine Oil

I understand that alot of you use 5W40 or 5W30 but I would like to stick with 15W40 for now. I dont have the bypass yet but once I do, I will use 5W40 or 5W30 cuz it lasts longer(right?) than 15W40.

AMSOIL Products - Auto and Light Trucks Lookup - amsoiloaf.150405366

Thanks

Last edited by smokersteve; 06-06-2009 at 05:42 PM.
Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
  #2  
Old 06-06-2009, 05:54 PM
Compression Ignition Addict
 

Join Date: Nov 2007
Location: DFW
Posts: 216
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
I personally wouldn't switch. I love Royal Purple and will always use Royal Purple
Reply With Quote Quick reply to this message
  #3  
Old 06-06-2009, 05:56 PM
Compression Ignition Addict
 

Join Date: Nov 2008
Location: California
Posts: 4,260
Thanks: 0
Thanked 1 Time in 1 Post
Feedback Score: 0 reviews
I have never heard that on this forum.

I always hear + about ams

Thanks for the comment
Reply With Quote Quick reply to this message
  #4  
Old 06-06-2009, 06:01 PM
Compression Ignition Addict
 

Join Date: Sep 2008
Location: ludlow MA
Posts: 922
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
Send a message via AIM to mustangman02232 Send a message via Yahoo to mustangman02232
i honestly think synthetic is a waste of money, i run good ole shell rotella and a motor craft filter in all my trucks and change it every 5k. after 3k i wipe the dip stick with my fingers to see if the oil still "webs".
Reply With Quote Quick reply to this message
  #5  
Old 06-06-2009, 06:04 PM
Lt. Negativity
 

Join Date: Jun 2007
Location: Stafford
Posts: 1,738
Thanks: 0
Thanked 1 Time in 1 Post
Feedback Score: 0 reviews
Amsoil is not all its cracked up to be in my opinion. Still running motorcraft and running smooth.
Reply With Quote Quick reply to this message
  #6  
Old 06-06-2009, 07:14 PM
Compression Ignition Addict
 

Join Date: Jul 2007
Posts: 5,462
Thanks: 2
Thanked 8 Times in 8 Posts
Feedback Score: 0 reviews
Motorcraft or rotella dino gets my vote. I know synthetics are much more expensive and you shouldn't push an oil change past 5k anyway. Heui injection is real hard on oil. Just my two cents.
Reply With Quote Quick reply to this message
  #7  
Old 06-07-2009, 04:37 PM
Member
 

Join Date: Apr 2009
Posts: 44
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
I agree that synthetic is a lot more expensive if you are going to change it every 5K, but what is more expensive... changing your oil & filter or taking a sample & doing an oil analysis? An oil analysis will give you the facts on your oil (& filter) and is certainly a much more scientific & cost effective way of determining when your oil needs to be changed. That is why railways, airlines & trucking companies have been doing it longer than I've been alive.
True - I wouldn't bother doing an oil analysis on a little gas engine with 4 qts of oil... it would be cheaper to change it than to test it, but there certainly is a cost effectiveness when a crankcase holds 3 gals .....
How about over 65000 miles on a 7.3 without an oil change? How about over 400,000 on a Mack without a change? (OK, no HEUI injectors there).
Of course, cheaper oils that are prone to shearing (thank you HEUI injectors) would not deliver results like that.

Dino is still cheaper?

With filter changes (as specified by OA), normal consumption (& leaks), there are small amounts of new oil (& additives) being added over the course of time.

As far as the original question, the 15W-40 HD Diesel & Marine oil has the highest TBN, so it is still probably the better choice.

Your mileage may vary.
Reply With Quote Quick reply to this message
  #8  
Old 06-08-2009, 08:16 PM
Compression Ignition Addict
 

Join Date: Nov 2008
Location: California
Posts: 4,260
Thanks: 0
Thanked 1 Time in 1 Post
Feedback Score: 0 reviews
Quote:
Originally Posted by Ratatattat View Post
I agree that synthetic is a lot more expensive if you are going to change it every 5K, but what is more expensive... changing your oil & filter or taking a sample & doing an oil analysis? An oil analysis will give you the facts on your oil (& filter) and is certainly a much more scientific & cost effective way of determining when your oil needs to be changed. That is why railways, airlines & trucking companies have been doing it longer than I've been alive.
True - I wouldn't bother doing an oil analysis on a little gas engine with 4 qts of oil... it would be cheaper to change it than to test it, but there certainly is a cost effectiveness when a crankcase holds 3 gals .....
How about over 65000 miles on a 7.3 without an oil change? How about over 400,000 on a Mack without a change? (OK, no HEUI injectors there).
Of course, cheaper oils that are prone to shearing (thank you HEUI injectors) would not deliver results like that.

Dino is still cheaper?

With filter changes (as specified by OA), normal consumption (& leaks), there are small amounts of new oil (& additives) being added over the course of time.

As far as the original question, the 15W-40 HD Diesel & Marine oil has the highest TBN, so it is still probably the better choice.

Your mileage may vary.


Thanks for your effort in your comment

I'm eventually going to get a bypass. And for the first few changes I will be doing oil analysis to understand the duration of the syn oil.

It will definitely take a long time for the syn and bypass to pay off but I have NO second thoughts about loving my truck for a long time.

Also oil is not my only money saving approach for long term, not for short term

Thanks for all your comments especially Ratatattat
Reply With Quote Quick reply to this message
  #9  
Old 06-09-2009, 03:27 AM
Compression Ignition Addict
 

Join Date: Feb 2007
Posts: 733
Thanks: 0
Thanked 0 Times in 0 Posts
Feedback Score: 0 reviews
One advantage to conventional synthetic oil compared to dino oil is related to the turbo. Most on here know to let the turbo cool down(either by using a turbo time or watching the EGTs and not turning the truck off til they hit a certain temperature), however, you don't have to worry about that as much with the synthetics because of the higher temperatures that they can handle.

I have seen too many oil analysis come back better for trucks that use synthetics as compared to dino oils to think that they are a total waste of money and based on my experience of better cold operations(weather cold) and engine sounding like it's running "smoother", and really good oil analysis has me voting for synthetics. However, I actually run Mobil 1 and that is even more expensive then what has been mentioned.
Reply With Quote Quick reply to this message
  #10  
Old 06-09-2009, 04:01 AM
Lt. Negativity
 

Join Date: Jun 2007
Location: Stafford
Posts: 1,738
Thanks: 0
Thanked 1 Time in 1 Post
Feedback Score: 0 reviews
Quote:
Originally Posted by Ratatattat View Post
I agree that synthetic is a lot more expensive if you are going to change it every 5K, but what is more expensive... changing your oil & filter or taking a sample & doing an oil analysis? An oil analysis will give you the facts on your oil (& filter) and is certainly a much more scientific & cost effective way of determining when your oil needs to be changed. That is why railways, airlines & trucking companies have been doing it longer than I've been alive.
True - I wouldn't bother doing an oil analysis on a little gas engine with 4 qts of oil... it would be cheaper to change it than to test it, but there certainly is a cost effectiveness when a crankcase holds 3 gals .....
How about over 65000 miles on a 7.3 without an oil change? How about over 400,000 on a Mack without a change? (OK, no HEUI injectors there).
Of course, cheaper oils that are prone to shearing (thank you HEUI injectors) would not deliver results like that.

Dino is still cheaper?

With filter changes (as specified by OA), normal consumption (& leaks), there are small amounts of new oil (& additives) being added over the course of time.

As far as the original question, the 15W-40 HD Diesel & Marine oil has the highest TBN, so it is still probably the better choice.

Your mileage may vary.
Ya you do have a valid point. Reguardless that you can go longer distant or miles without doing an oil change, doesnt matter how many times you filter it. Heat breaks down the oil period. Oil so you get analysis oh look oil is breaking down, its nasty, and the truck is running rough. Well personal you know when you change your oil in these trucks you can feel it I dont need an sample to know when I need to. For a DD you dont need a bypass kit.

Railways airlines and trucking companies these motors dont compare complete different built. There are not as complex either.

I pretty modified up in my 6.0 even if I have a oil bypass system I would still change my oil no matter the cost. Simple thing I tell everyone you want to be cheap with a 6.0 you'll pay a whole lot later in the end.

Back on topic its up to you man its your truck, and what you wanna do just invest your money in the right things.
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:
If you do not want to register, fill this field only and the name will be used as user name for your post.
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 On
Trackbacks are On
Pingbacks are On
Refbacks are On



All times are GMT -8. The time now is 12:38 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