i had 4 total oil changes by the dealer, but the first two times i had it done at Oakland Acura and they put synthic oil then i took it to a different dealer and didnt have syntc oil so they used regular then i took it back to Oakland acura dealer and they put syntec oil..does it matter if i use regular oild or syntec or should i keep it all syntec, or all regular..does anything happen if u keep switching the two???

 

No... nothing should happen but I'd stick with one brand (Mobil 1 Super Syntheric 5-30W) if I were you.