coolusername
Veteran Member
So I've got a 2012 Jetta Sportwagen TDI. Love the car, it's in great shape, currently at 76k miles. I'm getting extremely poor fuel mileage, like 25 MPG on the highway while driving like a granny. DPF regenerates super frequently too, like every 150 - 180 miles. Took it to the dealer, but they won't replace it without codes. I have until May when my Dieselgate warranty runs out. In the meantime, if my DPF were to get clogged up, I'd get a new one, and that would most likely fix my fuel mileage problem (I've already checked the bajillion other possibilities in the Fuel Economy thread, except for the EGR. Car's too new for that to be an issue anyways). Do you guys have tips for things to do to stress the DPF and create additional soot? Accelerate clogging it up? Already I have a very short 5 mile commute, that stresses the engine out because it's up a hill. Lots of cold starts too, and I'll be driving the piss out of it in "S" mode for all of this. I have a PolarFIS so I can see when the car's trying to regen, and I can then purposefully interrupt it. I understand that 24 grams of calculated soot is when the car starts to want to regen, and I need to get up to 45 grams calculated (point of no return) to make certain I'll get a new DPF and that they won't just do an emergency regen or something. So, I need tips. How can I clog up my DPF as fast as possible beyond all repair, but do it in a nice and plausibly deniable, natural way?