New ISX motor ?

[Lonestar10]

2008-2011 CM 871 for reliability and longevity and a vast knowledge base how to make it run like a champ on this forum.

So far this year at place im leased on with there is 4 new trucks bought by O/Os all pulling Flatbed.

1 - Bought Dec 2018 - 2019 - 389 - ISX15/18sp manual Performance Series 3.36 Rears - 565HP and gona guess 2050 on TQ - Struggling for 5 MPG vs his 1990s 379 3406 cat he traded in that even at 1.3M virgin Miles was getting 6.5 MPG - Typical Large Car midroof

2 - 2019 - Bought this week and 3 weeks ago - T680 - ISX15/12sp auto Efficiency Series 2.84 Rears - 450/1650 - 1 driver getting about 6.2MPG but complains truck is absolutely gutless in the hills. other driver just bought his this week. Both are the 80 something skyrise sleepers

1 - Bought Oct 2018 - 2019 - Cascadia - DD15/DT12 Auto Unknown gearing probably 2.something - 500HP/ dont know DDs torque ratings - Getting 7.5-8MPG all day long with good power in hills says he drives it like he stole it. Midroof


so looking at that 140-170k for a new truck would only be worth it to buy the 19' Cascadia specs running Flatbed with no Tuning/Modifications from what ive heard this year from people i know.

my Lonestar CM871 3.36 rears 500/1850 is doing about 5MPG running 65-67 mostly and 60-62 when i have plenty of extra time nets me about .5MPG its not perfect and i think i have some issues hiding somewhere because even empty my mileage doesnt go up really. but i have 40k in my purchase with 1/4 of their payments so when i want to i can park it in a corner and disapear on vacation for a week or a month and not be out a whole weeks earnings in payments + vacation cost.