Mobil Delvac 15w40 or 5w40 synthetic

[bad12jr]

Ok guys. Oriely's has mobil. Reg for 9.99 and syn for 19.99. Thinking of running the synthetic. What do you all think of the oil.

 

[Tom S]

I personally would run the 15-40 regular oil. When I would be look at the synthetic is for serious cold weather use. 211k and all is well says something for regular oil.

 

[Whytry]

I run the regular oil also and have no problems

 

[Powerstroke Cowboy]

I run the T 5-40 Oil from Rotela. I have 206,000 on the pickup.

I love that oil in the winter. Starts so much quicker and runs smoother.

I have no problem (yet) with leaks from the Full Synthetic Oil..

I run it year round to. It just seems to run better and I can get more miles out of it. And still run nice and even..

But like was said reguler 15-40 runs good in these pickups. Just not as good in the winter.


But the Injectors will love the 5-40 Synthetic.

 

[G Racing]

5w-40 syn :thumbsup:

 

[PTSUPERD]

I run 5 40 valvoline synthetic in my 6.0. It loves it...

Great oil.

 

[Strokersace]

I've ran both. If running 15w-40, the only brand I run is Mobile Delvac.

I've also ran the Mobile 1 fully syn 5w-40. Good stuff too.

Personally I prefer the Schaeffer's syn 5w-40 best but it's hard to find. Luckily I have a dealer close and can get it cheaper than I can the Mobile synthetic off the shelf.

Those are great prices on delvac and the syn BTW.

 

[morefuel]

5w-40 syn = much smoother running motor.

 

[Yodersstrokin96]

15w-40 Rotella We got oil barrels for the tractors so thats what i run haha