Dyno Translation

[Rawze]

Looks like the shop is clueless according to the comments that contradict themselves.

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Looks like someone had driven the crap out of that thing and driven it really hard according to its history. On the good side though, it only has about 18-20% idle time on it.

The abuse it has seen would explain higher than normal blo-by, lower then normal power, and the flywheel housing seeping too.

Someone has also been lugging the shi#t out of it down in the 1200-1300 rpm ranges up the mountains a lot too. Not good for them at all. The sweet spot on the ISX for max load is 1650 when pulling its hardest. When using max engine loads and pulling hard, shift bween 1500 - 1750 rpm ranges and use the lower rpm ranged when you don't need a lot of torque. That is what yields the longest engine life on them.

This company driver mentality of keeping it below 1500 rpm is bulls#hit on those engines. The operating range of the ISX is 1100 - 2400(2100 recommended cutoff) rpm 1500 and below is only the bottom 1/3 of that range.