Hello guys!cummins isx oil consumption!

My ISX at 900k never burned a drop of oil. Dipstick always in the exact same spot. Then one day I checked it, and it was at the bottom of the dipstick. Bad oil cooler. You might check your coolant and see how it looks just to rule that out.

 

Sounds like your ready for an inframe. Get an oil sample ASAP. Put some Lucas in there and take it easy.

 

Is the DPF still there?

 

Carbon compaction of the rings, which has caused streaking in the cylinders. Common problem in that year ISX. There is a special valvoline oil that is $100/gal. It has a detergent in it that reduces carbon compaction and supposed to reseal the rings. I’ve tried it once and actually was able to get another 50k miles or so.

 

My 2013 isx ran great guzzling up a gallon about every 1200 miles ...dont waste your money on that valvoline band aid .
Mine started using oil at 540k and progressively got worse until I had it tore down at 684k .
All 6 liners were polished , rings carbon packed and cam was shot.

 

I wouldn't worry about it for no more than you are using
Hell mine was using so much the last 10 months before the overhaul I quit changing the oil and spun a new filter on when the oil pressure started to drop a little .