What brand of motor oil do you use most often in your 6.0L PSD?

 

Well Im shell in the summer, and motorcraft in the winter, since I cant find 10-30 shell rotella around here. But I voted shell since I use for a longer period.

 

Been running Esso XD3 0-40, may consider a CJ4 after the next change.
http://www.esso.ca/Canada-English/Fi...Xd-3_extra.pdf

 

motorcraft 15w40 9.89 for 5qrt jugs at advance auto.

 

I get 6 - 1 gallon jugs at Sams. I forget how salty it is. Probably better that way. I wanna say like 60/box or about $2.50 per qt. Might be off on that.

Big

 

I've always used Rotella T 15w-40. It is a great oil for diesels and I've never had any problems.

 

Shell Rotella 15W 40 here thnk of switching to syn in the winter

 

Schaefer is almost as cheap as Rotella synthetic. The price is so close it's a no brainer.

 

Rotella T 15-40 CJ4

 

I've used Shell since day one. I tried Chevron Delo 400 twice but I didn't like the change in engine noise encountered so I switched back to Shell branded oil and don't plan on trying a different brand again.

 

Mobil Delvac 1 synthetic since 5K miles and I'm currently at 50K. Its rated for 100K miles in OTR big rigs so I run it to 7500 mile intervals. LIPD just did all my mods and Matt actually asked what oil I was running as the motor was in overall great condition considering the severity of my compression leak, 7 of 8 cylinders! He actually talked one of his customers (a long time user of another brand's syn and heavily invested in his current truck's 6.0 w/ extreme mods) into changing over to Delcav 1 because of this.

 

Rotella Synthetic

 

Rotella Synthetic 15w40

 

You have a typo...

Synthetic is 5W-40

Convential is 15W-40

You wrote... synthetic 15W-40... can't be both!!

 

Motorcraft 15W40, best price, always in stock.