cat twin turbo question

I drive an 05 379 with the c15 its had a lot of blowby since I have been in it! It has never had any kind of major engine repairs though the Eva's are a different story! Also sometime this month it will hit 1.3 million miles! Seems to me if your having so many broke rings at only 350,000 miles you should find some better drivers because those trucks are not even broke in yet

 

1.4 million and counting on my Acert I change the oil every month and I'm getting 7.2 mpg at 68 mph so I have no clue why this motor gets a bad name