[erstroke]

i bought a 2001 f 250 with 227000 mile on a 7.3 powerstroke. the who had it before said he ran synthetic can i swith back to valvoline diesel 15w40?

 

[ZombieSoldier]

yes no problem

 

[In2Trux]

Sure you can.

But why would you?
Synthetic is a much better form of protection to your new truck

 

[erstroke]

Im not totally sure about switch yet. The reason I would is we get 15w 40 delivered by the barrel for our dump trucks. So I would be cheaper cause that barrel won't miss 5 gallons every 3000 miles

 

[In2Trux]

That makes a lot of cents and at 3000mls your truck is gonna luv that.

 

[erstroke]

I heard you can go 5 to 7 but I change everything else around 3