Is there such a oil?

My new 06 has a little over 3000 miles now, and I want to get the factory oil out,

But since it gets will be started in temps around -30 to -40, and is heavily loaded, I need a oil that will flow, and put up with high temps. But NON synthetic. It has an Espar but I dont think it does to much for the oil.

In my 04 I just used 5-30, for winter when it had low miles, (since it was not worked that hard). It now has Esso 0w-40 year round, but 0-40 synthetic scares me on a truck that has 3000 miles on it.

What should I use?

 

Why would you hesitate to use 0W-40W when it's -30*F?

 

because the 0-40 is a synthetic, cummins doesnt recomend synthetic use until 20 000 miles, rings wont seat properly

 

Huh - I didn't realize 0W-40W wasn't available in dino... surely 5W-30 would be fine?

 

Rotella 5-40 is petroleum based
Dello 5-40 is petroleum based
They say synthetic but they are not a true synthetic, just refined so well they mimick synthetics.

There are more but my brain not working right now.

 

like it was stated earlier. cummins says to wait 20,000 miles. they have the info on their site. you have a ways to go- mileage wise!

 

most 5-30s are well below a 40 weight, in performance, when a full operating temps, for a unloaded truck Im sure it would be fine,

Bluebull, So the rotella or delo would be safe for a new engine. Where do you find that info, does highly refined dino oil have some special code on the bottle?

 

tough question that can be debated by petroleum guys and synthetic guys. I don't care to get into those discussions if not neccessary. Click on this website www.bobistheoilguy.com for some good reading on lubricating fluids. You can also do a web search using you computer browser on different oil manufacturers. PAO is a key word to look for in a true synthetic.

My personal feelings, if you live in arctic type temperatures any 5-40 would be o.k. and then in the spring change back to 15-40. I live in ND where we see -30 F during the winter and I used 15-40 most winters. A couple of winters I used 5-40 and the truck seemed to start better. Keep in mind I do not have to start my truck every day. I did start my 1999 dodge cummins a few times with those temperatures and not plugged in using 15-40. It was pretty scarry waiting for the oil pressure to come up. I ran plain 15-40 in my 05 for one winter. I plan on running just 15-40 in my 06 too.

 

I thyought there was a thread on here somewhere stating the reason for changing at 7500 miles was that there were additive in factory oil that helps to seal the engine?

 

You don't have to wait until 20000 to use syn. It says so in the manual. Says you can use it at second oil change. 12000 km's. I would use one of the group III based 5w40's. They are petroleum based, just highly refined as stated above. Then, after your second oil change, use the 0w40 Esso. That stuff is awesome!! Reasonably priced at wally, and my truck cranks over like a warm spring day...

 

BlueDually,

Just drop in some Dello or Rotella 5-40 and you will be ok. I just used Rotella 5w40 on mine and it had just over 10000 miles when I did and so far I like how much better it starts in cold weather. It is better to have petroleum based synthetic oil in it then trying to use a heavy duty 15-40 when the temps get at or below zero.

BTW, If you look in your 2006 owners manual it shows to only use 15-40 down to zero any thing below zero use 5-40. One other thing 15-40 oil is only good to zero, using it at lower temps then zero is not good for your rod or main bearings.

 

I'll pick up some rotoella 5w40 for this winter, back to esso xd3 15w40 in april, then esso 0w40 (and staying with) in october 07,

Just for fun, I asked a couple dealers what they "recommend/use oil For winter, " both service guys said dino 15w40 all winter , if its broke in, synthetic 15w40. Genius's, I think cement would circulate faster when it hits -30

Has anyone else heard that the facory oil has additives that help seal the engine?

 

Never heard that before. The factory oil in our engines is Valvoline Premium Blue 15W40. I'M with you BlueDually, I think 15W40 is TOO thick in winter.
Esso 0W40 is awesome! True PAO as well.

 

I thought valvoline premium blue was a full synthetic? The owners manual says as stated above not to use a synth for 20K, but the bottle says endorsed by Cummings and another post says premium blue is what comes stock? HELP!!!

 

I think the premium blue extreme is a 5-40 class 3 synthetic, (highly refined dino oil)

Premium blue 15-40 is a dino.