a co-workers thinking about buying a used/private grand prix gxp. he's somewhat mechanically incline (oil changes, suspension swaps etc) but doesn't know much on engine and the more detailed stuff. heres a link to the one he's planning on checking out:
not sure why the seller put LT-4 in the title?
2006 Pontica Grand Prix GXP LT-4/5.3 v8 - cars & trucks - by owner - vehicle automotive sale
I told him to check the trans fluid and if he ends up getting any type of GXP to get a trans cooler, a tune, and look into eliminating the DoD and lifter change(?). what're your advise and suggestions?
