Hard work, hard driving, what oil?

[AMassaro]

I'm switching to full synthetic. Not for longer drain intervals but strictly for added protection. Those with high powered trucks, what weight oil would you run, 5w40 or 15w40?



Probably going with Amsoil or Shaeffers.

 

[RobertP]

i run amsoil 15w-40 in my truck. and i probably drive my truck harder than anyone you have ever met. it has 54,000 miles on it now and still runs like a top.

 

[JDecanter]

Just keep in mind that the 5W40 Amsoil is the CJ-4. Amsoil reccomends long oil drains based on oil samplings. The CJ oils do not normally have as much detergent.

 

[Deerezilla]

I run schaffers 7000 15w40 in my 07 I pull big loads with it and we use the oil in all the equipment I have 3 ford diesels that all have schaffers in them. I have a JD tractor that has over 12k hrs on it never been opened up.

 

[jnelson]

06 - 92,000 miles. I ve ran Amsoil, Rotella, Rotella Syn. , Castrol tection, Delo, and may even olive oil, I cant remember. I decided to stick with Lucas 15-40 and run it 5,000-6,000 miles.