Mobil 1 oil OK or what??

[JJW_ND]

Delvac 1=Mobil SUV - run past 15K miles

Unless you only put 5K miles on a year, I would not hesitate to run this oil well past 15K. The newer 2003+ trucks have a 15K on petro oil. If I bought a new truck today, without question I would run petro oil 15K with maybe a filter change at 7500. I would run this Mobil Delvac 1/SUV 18K without oil analysis with analysis longer. Change a filter every 6.



I have seen what oil does in my 96 extending to 24K changes, withOUT any special oil filters, and towing in summer heat, stop and go driving, idling in arctic conditions. There are reasons to change at 7500 or less but the overwhelming majority of users on here do NOT fit in that category.



The 12V, 24V, ISBe (w/o EGR) is very easy on oil and a very clean burning engine. Oils today are awesome. The oil thing that has not changed is the philosophy on oil changes.



jjw

ND

 

[mhenon]

Well I did finally locate the new Mobil 1 stuff and see it would cost me $30. 00 more per oil change. Base on my 7500 mi. interval I would spend $800. 00 more over the length I plan to keep it. If I doubled the interval to 15K it would only be $400. 00 more but then I have to ask is syn that much better vs 7500 mile changes.



If it gave me a 1/4 of a mile more miles per gallon it would almost pay for itself at 15K.

I dunno...

If your using a 15W/40 now... you will see an improvement in mileage. As far as the extended oil changes you could certainly go to 15K. . probably 30K without any problem.

It does take some getting used to... not dumping the oil every 3 to 5K.

Mike

 

[J Shocik]

I have always changed the oil at 10K intervals since using synthetic ( Amsoil ). I intend to follow this practice when I switch to the new Mobil 1.



Now, to see if my local Wally World carries it in the quantities I need...

 

[amsoilman]

I have always changed the oil at 10K intervals since using synthetic ( Amsoil ). I intend to follow this practice when I switch to the new Mobil 1.



Now, to see if my local Wally World carries it in the quantities I need...

I always get a BIG KICK out of the BIG oil Companies when they come out with a NEW and IMPROVED oil! Amsoil came out with the first Diesel Synthetic (long drain) oil back in 1975!



Wayne

amsoilman

 

[J Shocik]

I always get a BIG KICK out of the BIG oil Companies when they come out with a NEW and IMPROVED oil! Amsoil came out with the first Diesel Synthetic (long drain) oil back in 1975!

Wayne, I didn't start this thread to debate the difference between Amsoil & Mobil 1, and I won't!! Everyone is entitled to their opinion, no matter how different than yours. Jeff K. likes Valvoline so much he sounds like a salesman for Valvoline!! :-laf Although I greatly respect his opinion of Valvoline, I don't intend to use it. I don't see Jeff bad-mouthing Mobil 1, I can't say the same for you! :{ Your TDR name says it all for me- a salesman for Amsoil.



I'm not going to get into my financial situation, but changes must be made. :{ The $100. 00 O/C w/Amsoil is a thing of the past. Mobil & Cummins say this oil is OK for my truck- that's good enough for me! I'm not asking you to like my chioce of change, just respect it. I don't feel you are.

 

[rbattelle]

I thought this information might be useful here. It's from page F-8 of Cummins part number 4021271, "Troubleshooting and Repair Manual ISBe and ISB (Common Rail Fuel System) Series Engines":

Limited use of low-viscosity lubricating oils, such as 10W-30, can aid in starting the engine and providing sufficient lubricating oil flow at ambient temperatures below -5C [23F] as shown in the illustration. However, the continuous use of low-viscosity lubricating oils can decrease engine life.

That's in the manual in bold-face with a large CAUTION label on top. I brought it up here since there was talk earlier of using 10W-30 or 5W-30 oils.



-Ryan

 

[J Shocik]

Ryan, the talk started with Mobil 1 coming out with a new 5-40 synthetic oil approved for use by Cummins.

However, the continuous use of low-viscosity lubricating oils can decrease engine life.

The Amsoil series 3000 5-30 is the other oil being discussed that I, until now, used. Some members don't agree with me in switching oil brands. :{

 

[LightmanE300]

Ryan, the talk started with Mobil 1 coming out with a new 5-40 synthetic oil approved for use by Cummins.







The Amsoil series 3000 5-30 is the other oil being discussed that I, until now, used. Some members don't agree with me in switching oil brands. :{

Just so you know, this is not a 'new' oil whatsoever. Mobil reformulated Delvac 1 5w40 3-4 years ago to meet CI-4 standards. It hasn't changed since then, they have just started selling it in stores relabeled as mobil 1 truck and suv. This isn't part of the new mobil 1 extended drain oils family/marketing.

 

[J Shocik]

From LightmanE300

Just so you know, this is not a 'new' oil whatsoever. Mobil reformulated Delvac 1 5w40 3-4 years ago to meet CI-4 standards.

Thanks for the information, but the point is this oil is now approved for use in our CTD's. I started this thread because I needed a few qts. for top-off before the next O/C. and noticed a Mobil 1 10-30 approved for diesel use with a C-F rating. With the additional information I received, I have decided to try the Mobil 1 5-40 for the next O/C. I could be wrong, but it appears some members don't like the point of me switching brands. :{



Lightman, I noticed you use Delvac (Mobil Oil). Do you like it? Do you recomend it? Thanks, John

 

[amsoilman]

Wayne, I didn't start this thread to debate the difference between Amsoil & Mobil 1, and I won't!! Everyone is entitled to their opinion, no matter how different than yours. Jeff K. likes Valvoline so much he sounds like a salesman for Valvoline!! Although I greatly respect his opinion of Valvoline, I don't intend to use it. I don't see Jeff bad-mouthing Mobil 1, I can't say the same for you! Your TDR name says it all for me- a salesman for Amsoil.

J Shocik,

Sorry I came across in the wrong way! I simply was making a statement! I am not bad mouthing any oil, and I never will!! If you look at any of my comments, you will never see me bad mouth another oil or product! I may make a comment such as the one I made here, but I really don't think that is bad mouthing! At least that's my perspective. As too the name, I've gone by that name for nearly 25 years!



Respecfully,



Wayne

amsoilman

 

[J Shocik]

Quoted by me earlier...

I could be wrong

Wayne, I'm sorry, but I did take it the wrong way. I really appreciate the responce from you. I'm not afraid of facing facts of which oil is better( I really believe Amsoil is), but if you look at responce #34 of this thread, that partially explains some of the financial problems I am facing. I have to find a less expensive O/C. If I could afford to stay w/Amsoil, I would. I believe synthetic oil is far superior to conventional petroleum based oils. I want to stay with a synthetic oil, so I'm going to try the Mobil 1 5-40. Respectfully yours, John

 

[Sled Puller]

John,I work on the assembly line that would have built your motorcycle.

HIJACK!!



Is that the line that recieved 3 new dyno booths a few years back? If so, I SOOTED them, while testing a Mustang 1750 at the Mustang plant. :-laf I kept blowing off their exhaust, hehehe.



Now, what brand oil do those Harleys take?





Also, if you need a couple quarts to make it 1500 miles, I wouldn't hesitate to throw almost anything in there.

 

[Matt400]

Ok... for all you oil junkies, how about this article or is it a book?

 

[J Shocik]

Now, what brand oil do those Harleys take?





Also, if you need a couple quarts to make it 1500 miles, I wouldn't hesitate to throw almost anything in there.

Sled Puller, What are you trying to say??? Harley's don't need good oil??? I've run my '00 FXDWG on Amsoil M/C oil until I got the new '04 FLHTCUI. With the factory warranty coverage on it, I will run the recommended HD oil in it until times up, then on to a synthetic for that too ( most likely Amsoil ).

 

[Jeff Knight]

Hey John, You have to know Sled Puller. He likes to stir the pot every once in a while. :-laf :-laf Jeff

 

[J Shocik]

Jeff, I was trying to protect your honor!! :-laf And my bike

 

[Matt400]

Ok... for all you oil junkies, how about this article or is it a book?

I was waiting for someone to read it and post back but couldn't wait and dove in myself. Pretty good stuff in there that makes allot of sense and yet another reason to choose a lighter weight synthetic.

 

[J Shocik]

From Matt400:

how about this article or is it a book?

Matt, I started to read some of it, but it's definetly more of a book than an article, pretty long... but it is interesting and I will read it when I get a chance. I printed it out. Thanks, John

 

[Matt400]

Thats what I did was print it and spread it out over 3 evenings of reading to keep it interesting. He makes some good points.

 

[amsoilman]

I was waiting for someone to read it and post back but couldn't wait and dove in myself. Pretty good stuff in there that makes allot of sense and yet another reason to choose a lighter weight synthetic.

In general he is correct with his analysis of the viscosity,

flow, temperature, and pressure considerations. However, he is missing several additional concepts with respect to the base oil structures and additive packages of engine oils.



Oxidation / Nitration issues



All oils have a tendency to change their molecular structure by the addition of Oxygen or Nitrogen. In reality the oils actually oxidize or burn and the properties of the molecule change. This is true for both Petroleum and synthetic fluids. The more saturated molecular structure of the synthetics resists oxidation better. Petroleum oils have a problem above 250 degrees F. If you look on most oil temperature gauges you will find the red line at 250. 250 is the point where the anti oxidation additive in the oil begins to fail and oxygen is readily taken into the lubricant.

For every 20 degrees above 250 the oxidation rate doubles. Most Petroleum oils are at their lubrication temperature limit at 300 degrees F. The synthetics in group 4 or 5 generally are good to 350 to 400 depending upon the base stock.



Novak Volatility



There was no discussion about volatility issues. One of the major thickeners for Petroleum oils is the volatility issue. Many of the petroleum oils have a high volatility. What this means is that the lighter weight base oils boil off leaving the heavier petroleum structure which changes the viscosity of the oils substantially.





Four Ball Wear test



This test is designed to demonstrate the boundary layer lubrication capabilities of the oil at start up. Here the work to protect the engine is done by chemistry of the anti wear additives ZDP or ZDDP is the most common. The better the protection of the oil in these conditions the better the oil can protect at start up for wear





Polar Molecular Structure



The ability of the oils to cling to the metal is greatly improved with a polar molecular structure. Group 4 base stock oils have this important structural difference. Group 3 VHVI base stock oils do not have this structure. Most of the so called synthetics on the market today are group 3 base stock which legally is considered synthetic but ethically it is still petroleum





High Temperature High Shear testing



This is a very important test that demonstrates some of what is his talking about. Mobil is only in the middle of the pack with this test.



I think this gentleman has studied the fluid flow characteristics well and the information is classical fluid flow but that is not all there is to lubrication.



Wayne

amsoilman