I was talking to a guy earlier about the adjustments to the turbo made possible by Smarty tuners. His exact statement was:
"the turbo on all 6.7's are a VGT (variable geometery turbo). there is a slide inside that moves and adjusts the vanes inside. this also accounts for your exhaust brake. always 100% of the time run with the exhaust brake ON. this helps reduce the carbon/soot buildup on the slide and keeps it moving in full range."
So my question is that is it ok to run with the exhaust brake on constantly? We run a few transport trucks and our diesel mechanic always turns the exhaust brake off on them because he said the drivers play with them too much and they are not necessary to have where we live. He also says that they can be harmful to the engine and it's they make fuel mileage worse.
What do ya'll think?