my buddy's 6.7 check engine lite is already on with only 500 miles on it I thought that was weird????

 

We're gonna need a little more info than that......

 

Not weird at all. He should check that the truck has the G30 recall (which will update the PCM to the latest software version).

 

well we thought it was cheap diesel because we found cheap fuel and the store is just a mom and pop store and the pump didnt have a sign on the pump tellin us if it was low ultra sulfer diesel or not but i was told all diesel is ultra low now . i was wonderin if i could cycle the key on off on off on to check codes like on my 2002 .

 

Yep... that trick still works. The trick is to do it quickly... on off on off on... within 2 seconds. The code(s) will pop up in the odometer window.

 

NO!!! DO NOT assume that what you're buying is ULSD. Most places that sell both ULSD & LSD have the pumps clearly marked. BUT YES, there is still LSD being sold out there. Once or twice using LSD, like in an emergency, won't kill the truck but you can't use it consistently without causing big time problems with your truck.

 

FWIW the CEL was on in the "new" 2007 i test drove Friday, had 118 miles on it

:shakehead:

 

I haven't found a place yet that sells ULSD anywhere in Canada. All the pumps say LSD. Oh, I have 39000km on my 07.5 MC and have had no problems.

 

Huh? The rule came in as of Sept 2006 that all stations MUST carry ULSD in Canada. It's illegal to run LSD in an on-road vehicle in Canada, you can find it in the US but not up here.

http://www.ec.gc.ca/CEPARegistry/doc...nd/p_amend.cfm

http://findarticles.com/p/articles/m..._6/ai_90331873

 

my buddy has dozers and sent this boy that works with him to fill the diesel tank on back his truck up and the kid put off road diesel in the transfer tank and decided to top the truck off too . he was scared it would screwed the truck up ,he called me at work asking if it would hurt the truck i didnt know . does anybody have clue if it will harm the fuel system he has a 2007.5
6.7

 

It might be a problem.

 

[QUOTE= does anybody have clue if it will harm the fuel system he has a 2007.5 6.7[/QUOTE]

Will cause the oil to need changing earlier as well as the fuel filter. In a pinch it will run on LSD, but running LSD consistently will clog DPF, EGR valve and lessen the oil change interval.

 

I think LSD is only available in off road vehicles in the US.

 

Nope!! LSD is still available in alot of areas in the US. Most places that have LSD will have the LSD pumps marked.

 

In our area you have to be careful.

While most pumps are marked. Some are not. If not marked, to be on the safe side, we assume it's 500 ppm and not the mandatory Ultra 15 ppm. The interstate truck stops usually mark the pumps depending on which it is.