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Heeeeeeeeey wrecker....

HemisAreSlow

HemisAreSlow

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So this guy I know was telling me that he thinks I should run ams-oil.....and I would like your opinion. Currently I have an 07.5 3500 with a hair over 75k miles on it....it tows frequently, and usually I tow more than balloon fuel. Since its 1st oil change I have been running mobil 1 fully synthetic turbo diesel oil w/ mobil 1 oil filters....I usually buy what ever advanced auto parts has in stock when they have their 5 qts and a filter for 29.99....so 60 bucks for an oil change. What would be the advantage or running ams-oil over mobil one? I am most curious...thanks in advance ...Mike
 
I see you still have your DPF (sig line). Assuming that is the case, you will need to run a CJ-4 oil. Amsoil has both 5w-40 and 15w-40 for this application. Selecting between the two would be based on climate/preference/etc.

Mobil 1 is a fine product. As far as why Amsoil is a good fit for you:

Diesel Engine Service
• Three times (3X) OEM recommendation, not to exceed 50,000 miles/600 hours or one year, whichever comes first. Drain intervals may be extended further with oil analysis.

• Amsoil 5w-40 has a lower viscosity at cold temps making for easier cold weather starts than Mobil 1 5w-40

• Mobile does not offer a synthetic 15w-40 CJ-4 product.

Finally Exxon Mobile's warranty is fine, for OEM recommended oil change intervals: https://www.mobiloil.com/USA-English/MotorOil/Oils/Mobil_1_Warranty.aspx

Amsoil's warranty covers extended drain intervals (in this case 3x OEM): http://www.amsoil.com/lit/g1363.pdf?zo=1025948

That's as good a start as any, feel free to ask away.
 
Yes, that allows you to run the good stuff. It's cheaper and has a more robust additive package (TBN of 12.1 vs 10.4 for instance).

Amsoil AME 15w-40

This product has a longer change frequency also.

• Normal Service — Up to 25,000 miles or one year, whichever comes first, or longer based on oil analysis.

I have personally verified this with independent oil analysis in my own truck.

Also, AME has a higher High Temp Shear Viscosity of 4.3 (ASTM D-4683 @ 150°C, 1.0 X 106 s.-1, cP) vs. 3.9 for Mobile 1.
 
i have always been schooled in the "an oil change is cheaper than an engine swap" school of maintenance...how can you put my mind at ease on going longer between oil changes...and how often should I change the filter with amsoil...also can you pm me a price at what I would be looking at in price for amsoil from you?
 
HemisAreSlow said:
i have always been schooled in the "an oil change is cheaper than an engine swap" school of maintenance...how can you put my mind at ease on going longer between oil changes...and how often should I change the filter with amsoil...also can you pm me a price at what I would be looking at in price for amsoil from you?
Click to expand...

You can pull a sample and have it analyzed any time you like. The results are cold hard facts. Despite this, I still have some customers that change their oil far earlier than required.

I always tell people to do what they are comfortable with. Don't lose sleep about oil changes.:smile5:

Amsoil oil filters are good for the duration of the duty cycle, yes 25k on 1 filter.

PM on the way.
 
and for what its worth I started this thread for myself....and for others that might not know the difference between amsoil and other synthetic oils...
 
I thought the high TBN was less relevant because of ULSD and that the CJ-4 was superior in all cases, DPF or not. My understanding was that viscosity breakdown was more important to watch in analysis?
 
i was looking into becoming a dealer for amsoil and the packets they sent with the data in them changed my mind for good on using there products. i am a amsoil customer for life. maybe a dealer soon too. i have a bunch of guys i can sell to so it would be worth while. i tried to get the chevy dealer here to change from mobil one, but i would not be able to touch the prices they get it at.

use it and you will like it. i rarely get that feeling when you look at the oil pressure gauge and it is almost in the red zone. just better quality.
 
I have always run the Mobil 1 and through analysis found the oil at 10k to still be good I'm in the process of another 7k which I will change it out(my comfort level is getting strained) and sample it...but I have the amsoil in the garage waiting to ease my mind a bit on the extending the drain intervals further...I will be at ease knowing I can easily make it to my 10k analysis and go another 10k ) before the next analysis (pending outcome of the first analysis)
 
bigdisneydaddy said:
I thought the high TBN was less relevant because of ULSD and that the CJ-4 was superior in all cases, DPF or not. My understanding was that viscosity breakdown was more important to watch in analysis?
Click to expand...

Viscosity is important, but with a (true) synthetic oil, shearing down is drastically reduced compared to petro oil. Soot thickening in diesels is also an opposite competing effect.

CJ-4 oils have required the reduction of ZZDP (a phosphorus source) due to bad things happening in emission control equipment.

ULSD does introduce less acid into the oil that is required to be reduced, unfortunately this is traded off with lower TBN in the CJ-4 oils.

You can't just say any one thing is the most important, it's really a big dance to be monitored.
 
Throwing my .02 in on this. I think syn is the way to go for sure. But I was told by a very reputable engine (race) builder not run syns until the engine has been broke in properly. He said due to the extra lub properties and tech stuff with syns it wont let the rings and such seat in right. We ran syn in the stock car (dirt track) but not until about 100 hours were on it. What do you think on this Wrecker? Pickin your brain ha,ha
 
I remember the corvettes(ZR1's IIRC... maybe others) came from the factory with mobil 1 so I don't know if that would be 100% correct...
 
LT1's I think were standard with Mobile 1. I ran it in my LT1 Caprice as well.
 
I would say my truck is well over the break in period........so I may just be switching....
 
Mercedes, BMW, Chevrolet, and many others factory pour synthetic oil (and specify it for subsequent changes).

I am not a professional engine builder, and I highly recommend following your builder's instructors for break in.

That being said, the only reason I would not use synthetic oil while breaking in a gas or diesel engine that I personally rebuilt would be the cost. I am an advocate of multiple short duration oil cycles during break in.

If any oil was "too slippery" for break in, it would be a miracle lubricant. That is outside of the bounds of reality.
 
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