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  #1  
Old 01-04-2012
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Default Mobil 1 Turbo Diesel Truck 5w40

I read on the Mobil web page a question about the difference between there diesel oils for use in a Duramax and was a bit surprised at the answer.


Either product, however, can be used in your particular engine, both exceed API CJ-4 requirements. Mobil 1 Turbo Diesel Truck 5w40 is specifically formulated to provide outstanding protection to light-duty diesel-powered passenger vehicles. It also exceeds the requirements of API SM classification for gasoline engines.

Mobil Delvac 1 ESP 5W-40 has been especially formulated for use in all super high performance diesel applications, and has engine builder approvals for the following:

Cummins CES 20081
Detroit Diesel Power Guard Oil Specification 93K218, 93K214
Mack EO-O Premium Plus, EO-N Premium Plus 03
Mercedes Benz 228.31, 228.3
Volvo VDS-4, VDS-3, VDS-2
Deutz DQC III-05
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Old 01-04-2012
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I'm sure either of them would work just fine.

Which one is cheaper???
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Old 01-04-2012
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I had a heck of a time trying to figure out what brand of Syn oil to buy and researched the specs on them. Seems they are almost the same. Then there's the person writing the info for the publics view. Some will sell the moon for $19.95 plus shipping and handling, and there's others that says it like it is. I believed I read in the past that Mercedes Benz diesel recommends Mobil 1 specifically. Whatever.

I found Mobil 1 5w-40 at O'Rileys on sale three dollars higher per gallon than Rotella 15w-40 and bought all I could. (It was a managers special for a re-opening draw for their customers) Got 50k since then and no issues. Just get true full Syn.
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Old 01-04-2012
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I use the Mobil 1 5W-40 in the Libby.
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Old 01-05-2012
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Most oil's are not a "True Syn", even if they state it. Rotella T6, Mobil 1, Pennzoil Platinum and others are now group 3 Synthetics. Still good oil's. But not True PAO Sythetic group 4.
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Last edited by Herb; 01-05-2012 at 04:24 AM..
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Old 01-05-2012
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Quote:
Originally Posted by Herb View Post
Most oil's are not a "True Syn", even if they state it. Rotella T6, Mobil 1, Pennzoil Platinum and others are now group 3 Synthetics. Still good oil's. But not True PAO Sythetic group 4.


I found out that what you sell now is classed as group PAO 4, ok, but what is the actual bases or base claim for this blend classification ? My research was done years ago. Were looking for knowledge ... well ?
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Old 01-05-2012
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AMSOIL formulates with Polyalphaolefin (PAO) synthetic base stocks. This chemistry is the industry's premier base stock technology. Unlike conventional mineral-based chemistries, AMSOIL PAO base stocks contain fully saturated, hydrogenated molecules and are free of wax and other impurities.
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Old 01-05-2012
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To me light duty is passenger vehicles like a car or SUV, not 2500-5500 series trucks. As I see it if the oil is not recommended to be used in a Semi engine I sure as heck I will not run that oil in my engine, one never knows when they may need to help a friend move a heavy load and then worry if the oil they used will protect the engine.
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