I'll be taking delivery of a new CTD in a couple weeks.

I've seen all the chat about what brand of oil.

But what grade should I choose?

I live in the Northeast near the ocean. I would say the weather is less extreme than say in upstate N.Y.

However we do get week or two periods where the weather is 20 degrees during the day and 0 at night.

Summer is typical hot and humid.

I was thinking 10/30 in winter and 15/40 in summer.

It this a reasonable plan or overkill?

TIA

 

If you can use the block heater during those cold snaps, the 15W-40 will be fine.

A 5W-40 (best bang for the buck is Rotella Synthetic) would be better in winter. Once the engine reaches operating temp the 10W-30 is going to be thinner than you need.

The only 10W-30 I know of that's diesel rated is Rotella T 10W-30, and that's very hard to find. I've only seen it once.

 

Definately see what the owners manual recommends before making a decision.

 

I run 15W-40 year round... Michigan get's it's share of cold too!



Tony

 

I did order the block heater (not a standard option ) so plugging in should be common.

I'll probably plan on 15/40 for most times.

Will check the owner's manual too of course.

 

I'd say 10/30 would probably be overkill if you only get down to 0 a couple times a year. If you plug it in overnight at those temps, you'll be fine. 20 degrees isn't even worth worrying about.

 

block heater is standard, just need the harness to make it work.

 

I've only had my 06 for a few weeks but my old 12 valve would start unpluged in -15 weather

 

I had to choose the block heater as an option when I specd out my truck it was $10.

I just built a CTD Laramie on the Dodge site and it now lists the block heater as a $90 option...

From what I can see it is only an option. Not sure about the price difference.

Is it the option for the cord?

 

Thats it!.......

 

Cool...saved myself 80 bucks!

 

first winter i had my truck, i ran 10w30, then i switched to 5w40 in spring. ran that for 10k kilometers, then switched to 0w40. run that year round now...

 

I usually stick with the weight oil recommended in the owners manual. For my truck it's 15w-40. I have always used Chevron Delo, and change it every 5000 miles or before. Synthetics are better for extreme heat and cold starting but I can't bring myself to leave them in the engine long enough to be cost effective.

 

Why run a thinner oil if DC/Cummins says otherwise? Personally I will be sticking with what they recommend in the owner's manual and that is 15W40.

 

Another vote here!!!!!!!!!!!!!!!!!!