what oil to use ??

[moparracing]

I know the owners manual says mobil 1 synthetic 0w40, but do you think i can use valvoline synthetic 5w40 instead ?? My local oil change service doesn't have 0w40........

Any input is greatly appreciated, thanks.

 

[FerrariTruck]

honestly I think youu'd be ok. I've actually managed to save up 9liters of that castrol 10-60 that we put in bmw m3's and m5's and i'm gonna use for my next oil change. If i can remember back from school as long as the oil is in the same classification or higher than factory rec you'd be ok. I'll look in ma books for that info regarding classifications of oil or some engineer on hear prolly knows it off the top of their head.

 

[RedSrt007]

I stick to mobil 1, just because it has really good specs (flash points / etc..).

As for what "weather" viscosity to use (that's what 'W' stand for ex: 0w40), depends on your climate and how your drive your truck. 0w is good for up to -30C, which most people will not get into (at start-up/cold weather). I use 5-40 full sync mobil 1, its common, and a lot more inexpensive and I don't need the 0w at startup w/ the San Diego weather we get here. For the information I have gathered, DCX had to choose a oil that could be used 'universally' in all location and climates, thus giving us a very broad viscosity range.

-Red

 

[JTS VENOM PERFORMANCE]

Like red says after all the oils I have tried stay with mobil bro, its absolutly the best.

As far as viscosity you should be able to run 5w-30 most all year, if it gets real cold you can go thinner if needed,

Red give you a good scientific dscription let me give ya mine

In hot weather oil breaks down easy so go thicker

in cold its thicker at start up so go thinner. tada!!!!

 

[Bone]

KY or Astroglide.
Oh wait, wrong thread.

If you want a cost effective and SYNTHETIC version try Shell Rotella SAE 5W-40 Motor Oil. You can get it at a local auto parts store or even Walmart. It's about 3.50/quart instead of 5.50 for the mobil 0w-40.

It's fairly new.

http://www.rotella.com/press/article_19.html

Shell ROTELLA® T SYNTHETIC meets CI-4 PLUS
Mar 24, 2005, 21:11


Without requiring any modifications to its current formulation, Shell ROTELLA® T SYNTHETIC SAE 5W-40 Motor Oil meets all of the specification criteria for the API CI-4 PLUS classification.

More Stringent

Established by the American Petroleum Institute (API), to enhance the performance standards of the current API CI-4 category, the new classification requires qualifying oils to include more stringent soot handling capability and upgraded shear stability control, two strengths Shell ROTELLA® T SYNTHETIC SAE 5W-40 Motor Oil already possessed.

Tested and Passed

In addition to the new API CI-4 PLUS classification, Shell ROTELLA® T SYNTHETIC SAE 5W-40 Motor Oil also has been tested and passed all tests required to be qualified against the following performance specifications: API CI-4, Cummins 20078, Mack EO-N Premium Plus 03, DDC93K214, and Volvo VDS.

Online Resources
ROTELLA T SYNTHETIC SAE 5w-40 Motor Oil

Read more about Shell ROTELLA® T SYNTHETIC SAE 5W-40 Motor Oil

Shell ROTELLA® T MSDS and Tech Data Sheets

Find Lubricant Ratings at the Official API Website

Meets or Exceeds

ROTELLA T SYNTHETIC By meeting or exceeding the specifications listed, Shell ROTELLA® T SYNTHETIC SAE 5W-40 Motor Oil meets the warranty requirements for major diesel engine manufacturers. Shell ROTELLA® T SYNTHETIC SAE 5W-40 Motor Oil was formulated with select additives and base oils so that it would pass the performance tests and specifications listed above.