CJ-4/SM 15w-40 in your ride check in here

[KA426]

Just want to make sure I'm not hurting my 440. Let me know you're out there people.

 

[pickled]

You are aaaaaight for the summer, but drop down to a 10W30 or 5W40 for your quaker loving winter!

 

[KA426]

Thanks but she won't be turning over in the winter. We've had a cold wet summer which in western Pennsylvania usually translates into a cold and extra-snowy winter. Just realized that was you Pickled, how ya doing buddy?

 

[harley145000]

Ka426, nothing like an rb motor with a torqueflite.(unless you prefer an 833 4 gear)

 

[pickled]

Life is good here in CO my man...we have [censored] months here too, but nothing like Youins have in PA! Get the car tarp out and let the 440 sleep well to dream about ripping up pavement! Enjoy the Yuenglings in the winter...it will help you get by!

 

[KA426]

Harley,
My uncle has a '63 Plymouth with a 426 Max Wedge backed up by a Torqueflite.

 

[KA426]

LOL! I'd much rather have a Colorado Coors Light to be honest.

 

[KA426]

C'mon, there were a bunch of you pushing the stuff a few weeks ago. Fans and users speak up with your opinions.

 

[Black_Thunder]

running 15w40 in my f150 with the straight six.


seems to like it

 

[junebug]

Running Mobil Super 1300 15w40 in my Mopar 225 slant six.Good oil for cheap at Wally. It's MoTruck or no truck!! Mopar to ya!!

 

[KA426]

Thanks for the replies. I just wanted to make sure that other people were doing the same thing I was for a little confidence booster.

 

[KA426]

One more question. Come to think of it, why do diesel oils contain more zinc and phosphorous than typical gas oils? I know it's always been that way but why? Anybody have an answer?

 

[OVERKILL]

Diesel engines operate under a lot more heat, stress and pressure. The compression ratio on a diesel is FAR more than a gasoline engine. The conditions diesel engines operate under are typically far more severe.

SO, their oils are far more robust to deal with this, as well as the soot they produce.

 

[KA426]

Do they endure more metal-to-metal contact and thus need more zinc?

 

[OVERKILL]

Originally Posted By: KA426
Do they endure more metal-to-metal contact and thus need more zinc?


The rods are hammered harder, and the clearances are much tighter, so the POSSIBILITY of metal-to-metal contact is increased. So the "Last line of defence", is there in abundance to prevent damage.

 

[KA426]

Thank you

 

[KA426]

Overkill,
So would you recommend a CJ-4/SM rated 15w40 for a street/ strip Dodge 440?

 

[OVERKILL]

I believe they do offer better protection under abusive situations than a PCMO, yes.

My personal favourite is Delvac 1 5w40/M1 TDT 5w40, but you can't go wrong with any of them really.

 

[KA426]

So just as long as the oil is SM rated along with the diesel certification I'll be alright I take it?

 

[OVERKILL]

Pretty much.