DPF message
I have a 2016 Chevy Silverado 2500 diesel with 16000 miles. Usually, if the DPF gets low I'll get a message on the DIC telling me it's low and I have 500 miles to add to it. This morning when I s...
Forum Discussion
Thermoguy wrote:Lantley wrote:Me Again wrote:Lantley wrote:
My biggest gripe with the whole DEF set up is there is no DEF gauge.
Why can't we have a gauge and know our DEF level vs. relying on a glorified idiot light?
Some trucks do. I add a 2.5 box of Peak Blue DEF when my gauges gets down to 1/2. Chris
Yes some trucks do have a gauge but GM models did not get a DEF gauge until the 2020 model year.
A gauge is such a basic thing I can't believe the designers believed a gauge was not necessary!
They program the truck to go into limp mode but failed to give us a gauge!
My guess would be because the idea was you would only need DEF when you did an oil change about every 5000 miles. I never fill DEF except when I go in for an oil change. I do it myself because I'm not going to pay what the dealer wants for DEF, but haven't needed to fill it between oil changes. I have once seen a low DEF warning while driving and towing, but also had an appointment for the next week for service, so filled just before taking in for the service.
DEF is not equivalent to mileage or oil change rate.
Towing mileage will consume more DEF vs. unloaded mileage.
There is no definitive weigh to know how much DEF you have without a gauge. THe only way I know is when the idiot light comes on.
In 2019 there must be a better way! Sorry GM did not find a better way until 2020
