oldnavy wrote:
Ranger1 wrote:
retmil46 wrote:
Okay, maybe I am a little paranoid after getting 2 clogged filters inside of 7500 miles.

But last week I noticed that the beast seemed to be sluggish and tried to do a gentle version of the stutter step routine, and actually heard it skip a couple times

. I agitated and drained down the Permacool filter, got visible chunkies out of it. When I drove it into work, it was back to it's old self.
Interesting... I filled up last week with B20 from Rays Charlotte location and had the same stumbling - seemingly from the transmission. I added enough PS Grey to bring it up 6 Cetane points ( according to the instructions on the bottle) and what I thought was tranny shudder disapeared completely. Gone, none at all now for 5 days under any driving conditions. I also had a couple of cold morning stumbles on idle before adding the PS.
Man you guys really need to find another fuel source, I bet those stations are buying the cheapest 38 to 40 cetane fuel they can find. Then they hide the rough running by mixing the the stuff with biodiesel to quiten the rattle down, and when you add enough cetane boost to get it in the 45 to 48 cetane range all the poor shifting goes away because power range is .closer to factory spec's.
Well, if you want B20 retail from the pump, in this area there ain't much other choice. Their one location in Statesville, Homer's Truck Stop, is the only place around I've seen with an above ground tank. Actually, what I've bought there has given me the best mileage of any of the local crud that passes for diesel, with or without PS.
In my case, I'm on the 2nd or 3rd tank of B20 since getting that last clogged filter from that POS Shell station. Probably flushing out the last of the crud from that mistake. After draining down the add-on filter and then refilling with B20 last week, mileage seemed to have picked up noticeably before I dropped it off at the dealer today.
But with my friggin luck, since they did the 18-018-05 TSB reflash, my mileage will drop like a rock, probably written to protect the EGR and screw the mileage.
My friend in Texas has 25K miles on his, has driven and used fuel from all over, and has tranny shudder so bad, in his words, it feels like it's going to shake the vehicle apart at times. I asked him if he had ever changed his fuel filter. Answer was no, even though it was due at 25K, felt it should be able to go 50 to 60K like the filter on his Cummins.
I reminded him that the Cummins had done that on local WYOMING fuel FROM THE SAME STATION, and that his CRD had went nearly 10K on the same fuel without any tranny shudder, that it wasn't until he moved to Texas, and started buying fuel from a larger variety of suppliers and stations, that he started getting tranny shudder. And it wasn't until I made the trip to Texas, and bought fuel from whatever station was available, that I started to get a hint of the same problem.
His shudder problem is so bad he's on the verge of wanting to trade it off. I told him that before he went that far, to get off his duff and try changing out the fuel filter. I pointed out that spending $35 for a new filter and potentially curing the problem sounded a lot better than eating $27K for trading off the vehicle. He didn't argue that point.