Any of you guys think that this new motor is going to be more costly and not is durable for the long run vs some of the older diesel's?

I really think it will be fine. in reality the lmm doesnt differ much from the others in the damx family. one thing that remains is how well the dpf holds up.

x2 partical filter will be the only problem i think

You don't have much of a choice if you want a new truck.

I respect your guys opinion so wanted to check with you guys. I heard that their might be injector and using that common fuel rail issues since pressure is so high. I don't have one yet but if i get one yet, but maybe next spring. Have a rule on never buying a first year vehicle.

Plus by then some aftermarket items will be available. Was thinking going with CP#, Aurora 4000, and a good programer and want to make sure that it will all hold together. Course I am not a big drag racer or anything.

they have had high pressure scince the first 06 lly models and not many problems with the high pressure as some has done with the lmm they have made it like the lbz by taking off the partical filters and blocked the egr and used the ppe programer .

they have had high pressure scince the first 06 lly models and not many problems with the high pressure as some has done with the lmm they have made it like the lbz by taking off the partical filters and blocked the egr and used the ppe programer .

I thought HPCR came along on the LB7??

I really think it will be fine. in reality the lmm doesnt differ much from the others in the damx family. one thing that remains is how well the dpf holds up.


Running B5 biodiesel from what I understand will cut the regen cycles by more than 50%. It's cleaner burning and keeps oil life a bit longer, thus producing less ash in the DPF. Once my truck hits about 2k miles I think I am going to run B5 about 3 of my 4 tanks of diesel I get per month.

Running B5 biodiesel from what I understand will cut the regen cycles by more than 50%. It's cleaner burning and keeps oil life a bit longer, thus producing less ash in the DPF. Once my truck hits about 2k miles I think I am going to run B5 about 3 of my 4 tanks of diesel I get per month.


ours has been running on b-100 for the past 2 weeks. havent experienced a regen yet with about 2000 miles

I have been running straight diesel for the 1st 1500 miles....no regen yet

ours has been running on b-100 for the past 2 weeks. havent experienced a regen yet with about 2000 miles

Wow! Dealer told me anything more than B5 will cause issues! Course you are living proof its not. Exactley how do we know when our rigs are going thru regen cycles?

Wow! Dealer told me anything more than B5 will cause issues! Course you are living proof its not. Exactley how do we know when our rigs are going thru regen cycles?

this is the way i see it, if GM says you can use B5 then you can use B100.

Obviously the parts are able to handle biodiesel if GM says its ok with B5.

I like to think of it as a $43k science project.

supposedly rpms go up by 100 during regen. maybe a pyrometer would help to determine egts

Bio is cleaner buring shoudlnt hurt, but for 100% sure and warrenty dont know fi id be the guiea pig. Its shouldnt hurt and gm should never know but?