Questions to ISX owners

My '05 ISX always ran best at around 1450 on the flats and small stuff, and a flip of the splitter would put it at 1700 to start a climb. Climbing and braking at around 1700 seemed to be the strongest for the engine, and from what I've heard - the best compromise for economy and wear.

The ISX is a great engine, AND it's a self priming system. Which has come in handy with me before......

 

Yes, I get over 1,000,000 miles from them before "overhaul", but actually I just get recons. The engine I'm replacing now has not failed, it is a preemptive replacement based on oil usage, leaking head gasket, (which pre-CSA2010 we wouldn't worry about) and over 1,000,000 miles. I'm told I could possibly get another 200k more miles on it. But as I did not buy any more trucks this year, this will save me $9,000 in taxes give me peace of mind, and give my customers better service by preventing a potiential failure under load. And in that million miles on that engine I have saved over $115,000 in fuel, and yes you read that right.

When theres pricing pressure, the best way to increase your profit is to decrease your expenses. Go slow to make more dough.

 

You saved $115,000 as compared to who or what?

 

As compared to the driver I had in the truck, before I started driving it myself. I was told no matter how he drove he couldn't get over 5.9 mpg out of the truck. So it is from my expenses when he was driving it, to my expenses with me driving it.

That's when I took over this truck and gave him another truck which I had been driving averaging 7.5 mpg, he couldn't get over 6 mpg out of that one either, so I had to let him go. My drivers know that I know exactly how a truck works so there's no reason for lame excuses.

 

Yes I did. Did it when it had 450k on it. Not even one problem ever since .Now it has 920k.
Only one thing: on the dash will always pump up a failure, but just close your eyes on it

 

Digging up posts out of the graveyard?