Hey guys, Back in sept. my dad bought a brand new (it has 200k on it when he picked it up) GMC sierra crew cab, 5.3l, alot of chrome accessories, a nice looking truck all around. After having it for a couple of weeks he started to notice smoke on cold start up. Im apprenticing for Heavy Duty technician. He asked me to take a look at it, so I did. On cold start ups (after sitting for atleast 7-8 hrs) the truck would blow blue smoke BAD! So this led me to believe that the valves were not seating properly and allowing oil to pass through and therefore oil being burned off during start up. Dad was burning/using about .5 a litre per tank of gas (500km?) He took it back to the shop, (it then had 1100 km), and he was told, i quote, 'come back when the truck has 5000kms, maybe the problem will fix itself, let the engine break in' etc etc. Just crap, I cant believe a company would represent itself like that. I told him this was Sh*t. If the engine seized due to lack of oil he would lose his warranty due to lack of maintance and he would be totally screwed. He took it back after another thousand kms and they had it for a week and claimed it was fixed. The truck stopped blowing smoke on cold starts, but continued to burn oil at a similiar rate. So of course he toolk it back a few weeks later and it was in the shop for another week, service department claimed it was fixed again. But YET AGAIN the truck burned oil at the same rate, the day he got it back from the shop, i mean the DAY OF getting it back I checked the oil and it was halfway down the dipstick!!! The service department gave him a case of oil and advised him to 'monitor the situation'....what!!?? It has been 'fixed' twice. By now its time they just R&R the engine and get it fixed. Thoughts?????