Duramax, warm up time
I'm considering a 2015 Duramax that a friend is selling that is pristine and well maintained. He drives a lot, it already has 115,000 miles on it. I on the other hand have a short commute only 6 m...
Forum Discussion
valhalla360 wrote:wowens79 wrote:
OP here, The DPF is my concern, but I do pull the boat to the lake, or take the camper out at least once a month, and we run to ATL, or Birmingham regularly, so I do get on the highway.
About how often do they want to Regen? I've read it's determined by soot particles, but does that equate to 500-600 miles? 2000 miles?
I drive about 15000 miles a year.
No engine (gas or diesel) likes short runs but as long as it gets an occasional run long enough to get to full operating temp, it's not a big issue.
If you are taking the camper out once a month and doing a couple runs per month to Atlanta/Birmingham, that will satisfy the need to get it up to temp and regen.
As far as warm up when you start, anything more than 30 seconds is a waste. Diesel engines take so little fuel to idle that they will never warm up in the driveway. Best to get on the road and not stomp on the throttle for the first 5 minutes of driving. FYI: This is what the manufacturers recommend).
I'll agree in general with the no more than 30 seconds warmup. Under reasonable weather. However at least some of the newer diesels WILL warm up when cold with a short idle time. My 2015 duramax with temps near 10F will start nice hot air to the cabin in 5 minutes from a cold start while idling. How?? well, one they bump the idle speed to around 1000rpm, second they run the turbo vanes to maximum backpressure. now the engine isn't just a air pump, it is actually needing to do some work. So, normally get in start and drive. when below about 20F I hit the remote start, let it run the 5 minutes or so it will do with the remote start, then get in and go. Oh, BTW GM is nice enough to also have the heated seats on while it is under remote start.
Wonderfull.
