Oil & Fuel Burning Pile

[dieselluver]

Suggestions Anyone??? What should I do?

My 06 that I bought in Sept 07 is really bugging me. Its now got 65,XXX miles and I've put on about 14k of them. My running average fuel economy is 11. 5 mpg. Also the last 2 oil changes its been using a gallon in 5K miles. One change was with Delvac 5W-40 syn, and the last was with regular rotella dino poop. Had it in to my local dealer and they did a compression test -ok, so they say. Nothing wrong according to them. Right now I've got 1600 miles on my oil, and I'm half way down on the running range, -started with it at the full mark. Its the newest rig I've owned, and by far the worst. I've had the usual blend door breakage, but oh well, Its just plastic.



What I'm wondering what I should do? I don't drive it hard, and only pull trailer probably 10 percent of the time. I know something's wrong, but what?



Ryan

 

[MMeier]

Turbo gone (going) bad??

 

[dieselluver]

They said the compressor wheel showed a little 'dusting', but nothing too bad. Who knows? I should pull it apart myself.

 

[steved]

I wonder if you bought someone else's "toy"? Dusting indicates aftermarket airfilter usage (one of the not-so-good ones)... and usually shows up in the cylinders as scoring.

Does it smoke? I would expect it to smoke like a freight train using that much oil...

I will never buy a used turbo diesel for that reason... too easy to get something someone else has chipped/boxed/programmed and ran the snot out of.

 

[dieselluver]

Weird thing is it doesn't smoke, unless 'ole JR is on #3, but usually always on #1.

 

[ackermanN]

You might want someone to do a manometer test. They put a sensor in the blowby tube. If pressure is too high oil blows out the tube.

 

[Hoefler]

The cat will usually take care of smoke from oil.

 

[Red Rocket]

I had an '02 that didn't like the thin oil. I ran amsoil 5w30, and it ran great, but it went through it, but I don't think it was as bad as one gallon. The key is when I went back to 15w-40, my oil use was eliminated.



Also if you don't, you should try oil sampling. I think genos sells kits. Lots of insight into what's happening in the engine comes from sampling. That would be my first step.



Good luck.

 

[DerekW]

Suggestions Anyone??? What should I do?

My 06 that I bought in Sept 07 is really bugging me. Its now got 65,XXX miles and I've put on about 14k of them. My running average fuel economy is 11. 5 mpg. Also the last 2 oil changes its been using a gallon in 5K miles. One change was with Delvac 5W-40 syn, and the last was with regular rotella dino poop. Had it in to my local dealer and they did a compression test -ok, so they say. Nothing wrong according to them. Right now I've got 1600 miles on my oil, and I'm half way down on the running range, -started with it at the full mark. Its the newest rig I've owned, and by far the worst. I've had the usual blend door breakage, but oh well, Its just plastic.



What I'm wondering what I should do? I don't drive it hard, and only pull trailer probably 10 percent of the time. I know something's wrong, but what?



Ryan

I can understand the blend door issues on the 06. in 2006 the were slashing MFG cost left and right. I had to make a 2006 power moveable pedal assembly parts fit in a 2004 last weekend. 06 had a driveby wire thing and 04 didnt hence couldnt just bolt right up. so i disassembled and modded to fit 04. differences: one of the pieces of the 04 was made out of 7/16in cnc cut steel. the 2006 made of crappy cast aluminum. the piece that goes on the firewall had very few impurities on the 04, 06 was crappy. power moveable pedal assembly cables on the 04 had good quality materials. 06 junk that I wouldnt expect to live long at all. with that said if you need interior pieces differences between 2006 and 2004 are not that far off if at all, so go find used parts from 04 or 05 if you can.

 

[TFucili]

I wonder if you bought someone else's "toy"? Dusting indicates aftermarket airfilter usage (one of the not-so-good ones)... and usually shows up in the cylinders as scoring.



Does it smoke? I would expect it to smoke like a freight train using that much oil...



I will never buy a used turbo diesel for that reason... too easy to get something someone else has chipped/boxed/programmed and ran the snot out of.

My first thought was a dusted engine. When I was a JD dealer I had a customer fiddle with the air filter on a Yanmar in an 855, and not get it back together right, and it dusted the engine in about 40 hours!



As for smoking,we owned an '86 F350 w/6. 9 Navijunk that burned a quart every 200-300 miles from the day we took delivery, and it did not smoke anymore than any other 6. 9.