I've been running 100 percent bio in a 76 MB 240D, just fine for a couple months now, but it's starting to get cold in Oklahoma. Recently I've noticed significant hesitation when trying to accelerate in 3rd and 4th and sometimes at the top end of 2nd. But it doesn't do it on all trips -- just off and on. Is this likely from clogged filters or could it be the injectors? I installed the Monark fine-mist injectors several months ago, and it's been running fine until recently.
Jason, Tulsa OK