u/ArrivalNo4232

I am curious about this and would like some assistance or have something cleared out so withhold your downvote, Please.

I have driven my Cascadia for a few days now and consumption used to be rather stable and low, the consumption gauge would stay relatively stable at around 10-15 on the horizontal gauge (Digital Dash, Consumption gauge) regardless of where I was driving or the driving style *it was also very stable even with heavy freight*. However, now it just keeps consuming more all the time. I have no idea why this happens and I went from a very solid 26.4L/100km to jumping back and forth between 27L and 26.9L consumption the horizontal gauge from staying inbetween 10-15 now drops to 5 (I suspect that gauge is in the imperial system since it's an American truck and I am using the metric system). Now it is a very minor problem almost negligible, minute changes in consumption. But it really bugs me why this happens I am very careful when driving I leave it at low RPM and I travel at about the speed limit and never over it anymore, yet it still drains fuel like it's a 389.

The truck is kept in tip top shape and the only wear is on the tyres.

This change I noticed after enabling "realistic fuel consumption" but I turned it off right after.

All in all my driving style hasn't changed, I cruise at the speed limit and oftentimes under it, with low RPM around 1,000 to 13,000-15,000 which is what I observed the Auto transmission maintains.