X15 Performance- Working good?

Most W900 are built in Mexico nowadays.

 

If it's red stay away. How much are you willing to risk?

 

You mean an X-15, not an ISX, right? 2018s have the new X-15.
What exactly are the problems with the truck build?

 

Not one Kenworth Class 8 truck is built in Mexico that is sold in the US market. Only the medium duty's are. One of our trucks is a 12', it had the fuel pump replaced to fix the faulty one. What's the liner issue?

 

Well it's 6 months later, so I thought I'd resurrect this thread: how are your x15's performing? I've heard some disappointing (to me) mpg figures from the performance series.

 

I heard people getting an extra 1 mile per gallon over the ISX

 

What application? Typical van haulers?

 

One comment was from a heavy haul guy.

 

That's good. I heard of one guy who was only getting 5.5mpg with a performance 565 in a 389 and only pulling 80k. I have no idea how he drives. To compare, I know of a fleet that regularly gets 5.5 pulling 140k gvw powdered cement tankers. That's a fleet average using all sorts of engines.

 

I don't know why you would spec a performance series and then complain about the mpg's? What rear ends and speed is the truck normally operating in? If you want fuel economy then spec for fuel economy.