We have a ton of duramax diesels and every single one after 08 is a pos. We have 2 08s with 300k on em and they run great. They throw every warming light in the book but still run good. Our 2012s are terrible. One truck I have had to get towed 8 times. It takes about 15 sec from 70 mph to 0 mph and won't start again.
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