hello,im thinking about buying a 2500HD (2005) DMAX,are they still having problems with injectors or any thing for that matter? are injectors covered by a extended warranty and what is base warranty for DMAX thank you for your help.:)

ok, injector issues are a hit and miss. it still is a great truck by far. the warranty is 3 year 360000 for the bumper to bumper, 5 year 100000 for the engine.

you can't go wrong with the dmax if you truly enjoy comfort and power.

If you like what they have to offer, Go For IT! I have an 05 with only 7k miles, and no issues. Like NCMIC said, injuctor issues are hit and miss and from ehat I've seen more miss! From what I've read, most who are using some kind of fuel additive are not having any issues with injectors, but there are always some special cases.

You will find that the others have issues as well - you just need to do your research and get what suits you best!

i had read on one particular thread that GM is offering a 200,000 mile warranty on injectors, what kind of MPG can i expect ? thank you.

The 200k warranty was an extention to the 100k for the LB7 engines (pre 2004.5). I see anywhere from 15.5 to 18 mpg so far.

gas mileage will vary. additives are their to keep you from havign alot of headaches witht he injectors. i used stanadyne most of the time and still have the stock injectors with great balance rates. my mileage is over 80k miles on my 04.5 lly.

my cousin used lucas additive in his 05. i checked his balance rates and he has 2 injectors nearing the failing marks. he only has 7k miles on his.

Stanadyne and Racor fuel additives are the only ones recommended by GM. you could use FPPF, Primerose and Power Service. Power Service is readily available at walmart and most truck stops.

Just use an additive without any alcohol in it or used one of the ones preferred from GM. People have had great results from the FPPF, Primrose and Power Service as well as the Stanadyne. Stanadyne isn't readily available nor cheap. but you can find a local dealer at www.stanadyne.com or check in the Vendor area for an approved vendor to see what they have and the prices.

good luck and hope you get the truck. you won't be disappointed once you are in it, in my honest opinion.