New Mobil 1 Truck & SUV - NOT for diesels

[RustyJC]

Sorry - I missed the 5W-30 reference. My bad!



Rusty

 

[Alphacowboy]

Actually the black in the oil was probably soot and carbon in suspension in the oil. It was likely from the different detergents in the oil cleaning off some of the deposits that were built up inside the engine.

good point... . so maybe its a good thing to run it through once for a short duration to clean all the crap out? :-laf It actually ran awesome on the stuff, and after the change to Amsoil, it ran really smooth. and the oil stayed clear for a LONG time, I was quite impressed. Could my oil have stayed cleaner longer due to the short time the Mobile 1 was in there? Could it have cleaned it out that well? Interesting, makes you wonder how much soot build up there actually is in our motors!

 

[MorrisN]

I used Mobil one 15-50 in my 94 Cummin for 300,000 miles. The oil would stay clean for 5000 miles. I change it ever 10,000 miles. It was rated as CL. Mobil 1 has change their labeling and oil over the last few years. In my 05 I am using Mobil 1 5w-40 CI-4 oil It looks like they change the labeling again since my last oil change. In my 05 the oil does not stay clean like it did in my 94. Going from 160 hp to 325hp has cause more soot in the oil. I am going to add a bypass filter to clean the extra soot in the oil. It cold weather at 9000ft my truck start easily a big difference than using Dello 400

 

[NavyDood]

Here's the monkey wrench being thrown in. If your out of warranty, then it falls back on you. If you are in warranty, why take any un-needed risks?



1. Fleetguard Stratapore and Rotella 15w40 every 7500 miles. $33 tax included.



2. Fleetguard Stratapore and Rotella 15w40 10,000 miles with a filter change at 5000 miles. $47 tax included.



3. Amsoil 15w-40 Heavy Duty Synthetic and Donaldson endurance. $120 tax and shipping included.



4. Amsoil 5w-30 Series 3000 Heavy Duty Synthetic and Donaldson Endurance. $152 tax and shipping included.



Looks to me that my first choice above is most cost effective. Not by much, but it is. There are more than enough Trucks and Semi's that have accumulated billions of miles over the decades that have proven over and over again that Dino oil is all that is needed.



The one thing that gets me is the Amsoil 5w-30 HD Series 3000 amsoil that everyone prefers to run in the CTD because of it's "great" additive package. Not one place have I been able to find that it is a recommended oil weight for the CTD. Everything I have found says to use 5w-40 for winter and 15w-40 for summer. I don't care about the 5w-30 HD Series 3000 amsoil meeting Cummins specs. It says so right on the bottle. But does it meet the oil weight recommendation written in the owners manual and the FSM? NO. Some of the ppl that have ran the 5w-30 HD Series 3000 amsoil, changed it back out to Dino 15w-40 because the engine sounded like crap with it in it. For warranty purposes, Chrysler requires the use of the proper weight oil, API certified, and changed at the intervals listed in the warranty, or the warranty can and/or will be voided.



Personally I think the paper that Amsoil's guarantee/warranty is written on is worth more. Amsoil does NOT always pay up. Their lawyer babble is no better than any other companies when it comes to covering their arse.

 

[steved]

Also, a point I think was missed:



Synthetic oils may have synthetic components in them, but can use a petroleum oil as a base and still call themselves synthetic... Mobile 1 was full synthetic (including the base oil) until the whole Castrol/Mobile 1 thing... mainly because Castrol was placing synthetic oils in a dino oil base (a "carrier") and calling it synthetic... now if you buy Mobile 1, make sure it says full synthetic as some Mobile 1 say sythetic "*excluding petroleum base oil".



The whole CH/CI thing... the H to I change was done for emissions reasons primarily. I'll have to look, but I think the stuff we ran in the oldman's 95 was CE. I ran a change of CH through my 04. 5 because, imagine this, CI was not out in all stores yet because it was new. I found this for about 3 months after I bought my truck, probably flushing the old stock out before the new stock came through.



steved

 

[Cooker]

mainly because Castrol was placing synthetic oils in a dino oil base (a "carrier") and calling it synthetic...



The whole CH/CI thing... the H to I change was done for emissions reasons primarily.

I'm pretty sure the whole Castrol/Mobil lawsuit was over the fact that Castrol was using a highly refined Group III base stock and calling their oil synthetic. From what I understand there was nothing synthetic (in the true sense of the word) about the oil otherwise they would have called it a blend.



The CI oils were/are designed to hold soot in suspension better. This was due to the increasing number of EGR equipped diesel engines.

 

[steved]

The CI oils were/are designed to hold soot in suspension better. This was due to the increasing number of EGR equipped diesel engines.

I find it funny that Cummins recommends this oil for our engines since they are not an EGR type engine (the majority of them anyhow)... I know about the cali versions.



steved

 

[Cooker]

I find it funny that Cummins recommends this oil for our engines since they are not an EGR type engine (the majority of them anyhow)... I know about the cali versions.



steved

Even without an EGR the enhanced ability to hold soot in the oil better is an advantage. The more soot/carbon that is maintained suspended in the oil the less likely it will be to form deposits in the engine.

 

[p-Bar]

I haven't seen this mentioned yet so I thought it was worth bringing up.



Mobil has decided to change is marketing scheme a bit and their new version of Mobil 1 Truck & SUV is a 5w30 oil and it does not carry a CI-4 or a CI-4+ rating. So if you see it on the shelf, like I did today, it is not longer repackaged Delvac 1 and it is not for use in your Cummins.



The Mobil 1 Turbo Diesel 5w40 (I think that is what they are calling it) is what you will probably start to see at the Wally Worlds and other retailers. I'm not sure the at the Mobil 1 Turbo Diesel 5w40 is repackaged Delvac 1 but I can only assume that is it. After it starts to become available on the shelves that information will be available.

The Mobil 1 I bought from Wally Mart carrys the CI-4 rating I took a pic of it if you would like to see it

 

[Cooker]

The Mobil 1 I bought from Wally Mart carrys the CI-4 rating I took a pic of it if you would like to see it

This is the whole reason I started this thead.



The new version of Mobil 1 Truck & Suv is a 5w30 and is not a diesel oil. This was confirmed when I called the Mobil 800 number yesterday.



I'm sure there are still a few bottles floating around out there of the old Mobil 1 Truck & Suv 5w40 that is rated for diesel use.



My point is that potential buyers need to be careful of buying the M1 Truck & Suv and know eventually there will be no more 5w40 Truck & Suv available for use in our trucks.

 

[jlipskoc]

Thanks Cooker for bringing this up, I was at Wally World too and noticed the same thing yesterday, no M1 5w-40 diesel, only M1 5w-30 for gasers. I bought some old stuff there last year, but its not there in the same spot. I'm thoroughly dissappointed. Theres no place locally to buy diesel syn now.



So I guess if a person wants Synthetic diesel at Wally World, all i see is Rotella Syn 5w-40 (which i know isn't really a real syn).



Otherwise, I guess I'm in the market for Amsoil or Redline. Sucks mail ordering those two, they stiff you on hazardous fees.



BTW: Has anyone proven that engine oil synthetics provide more HP on the dyno for our CTD's??

 

[john3976]

Thanks Cooker for bringing this up, I was at Wally World too and noticed the same thing yesterday, no M1 5w-40 diesel, only M1 5w-30 for gasers. I bought some old stuff there last year, but its not there in the same spot. I'm thoroughly dissappointed. Theres no place locally to buy diesel syn now.



So I guess if a person wants Synthetic diesel at Wally World, all i see is Rotella Syn 5w-40 (which i know isn't really a real syn).



Otherwise, I guess I'm in the market for Amsoil or Redline. Sucks mail ordering those two, they stiff you on hazardous fees.



BTW: Has anyone proven that engine oil synthetics provide more HP on the dyno for our CTD's??

You can get Royal Purple from http://www.RPMOIL.com they seem to have free shipping a lot of the time.

 

[Elite1]

Thanks Cooker for bringing this up, I was at Wally World too and noticed the same thing yesterday, no M1 5w-40 diesel, only M1 5w-30 for gasers. I bought some old stuff there last year, but its not there in the same spot. I'm thoroughly dissappointed. Theres no place locally to buy diesel syn now.



So I guess if a person wants Synthetic diesel at Wally World, all i see is Rotella Syn 5w-40 (which i know isn't really a real syn).



Otherwise, I guess I'm in the market for Amsoil or Redline. Sucks mail ordering those two, they stiff you on hazardous fees.



BTW: Has anyone proven that engine oil synthetics provide more HP on the dyno for our CTD's??

I have gone direct to the distributors in the past, to buy Delvac1 (Mobil1 for Diesels) They have always been happy to sell me a case.

Here is a list of some in Missouri:

http://www.prod.exxonmobil.com/chan...butor_directory_state.jsp?distributorState=mo

 

[steved]

Sucks mail ordering those two, they stiff you on hazardous fees.

I just ordered a bunch of Royal Purple gear oil and transmission oil off eBay with free shipping... might try that route?



steved

 

[Matt400]

I'm thoroughly dissappointed. Theres no place locally to buy diesel syn now.

I don't have a walmart in my county so havent had a chance to check but have read posts where folks have found Esso XD-3 0w-40 at Walmart. Has anyone here seen this stuff there? Using a real gauge I have measured 80-90 psi in normal driving and also seen 100 when cold out. I would think that kind of pressure would easily support a 0w-40.

It's a Synthetic that meets Cummins spec and is CI-4

 

[nickleinonen]

I don't have a walmart in my county so havent had a chance to check but have read posts where folks have found Esso XD-3 0w-40 at Walmart. Has anyone here seen this stuff there? Using a real gauge I have measured 80-90 psi in normal driving and also seen 100 when cold out. I would think that kind of pressure would easily support a 0w-40.

It's a Synthetic that meets Cummins spec and is CI-4

it is in my sump right now... about 18-20 psi idling hot measured off the lube oil gallery left side of block with a mechanical gauge. . that was in summer when i checked the pressures... i have a very inaccurate electronic gauge in the cab [the sending unit is fubar ] but it still shows within 5 psi below 30psi [above 40 iit doesn't move anymore]

 

[Matt400]

it is in my sump right now... about 18-20 psi idling hot measured off the lube oil gallery left side of block with a mechanical gauge. . that was in summer when i checked the pressures.

Thanks Nick for that info, I was wondering what to set the low level alarm at on my sons pressure gauge.

I don't like the idea of knowing something is wrong at 5 psi. Since he runs 15/40 I will set it a 15 lbs for a warning point.



I tried to find some of the 0w40 but so far no luck, it may be a Canadian only product. Exxon does not show it on their site.