2015 Buick Regal

I STARTED EXPERIENCING EXCESSIVE OIL BURN AT AROUND. SINCE THEN, I HAVE CHECKED MY OIL BIWEEKLY TO TOP OFF AND KEEP AT PROPER LEVELS ALONG WITH CONSISTENT OIL CHANGES AS THE OIL GETS DIRTY QUICKLY. DEALERSHIPS BEFORE HAVE TOLD ME THAT ITS "NORMAL" FOR THESE ENGINES. I DISCOVERED A BAD OIL LEAK. VACUUM PUMP ISSUES. MULTIPLE CAMSHAFT SEALS WORN AWAY, THAT WERE HARD AS ROCK FROM EXCESSIVE HEAT INCLUDING PISTON SEALS THAT HAD BEEN AFFECTED. THOUGHT THIS POSSIBLY HAD FIXED THE EXCESSIVE OIL BURN. A FEW WEEKS LATER I RECEIVED THE OIL LEVEL LOW NOTIFICATION ON THE CAR COMPUTER. I CHECK AND ITS VERY LOW. THE OIL BURN IS CONTINUING WITH NO CLEAR SIGNS OF AN OIL LEAK WITH DIRTY OIL. THERE IS POSSIBLY MORE PROBLEMS WITHIN THE ENGINE THAT AREN'T SEEN. I HAVE CHECKED PREVIOUS COMPLAINTS. I NOTICE THAT THIS ENGINE HAS MANY OF THE SAME PROBLEMS WITH THE TURBO PACKAGE ON GM VEHICLES. IT HAS A ROUGH IDLE AND ENGINE HESITATION. THESE CHARACTERISTICS SEEM TO INCLUDE INCONSISTENT ENGINE PERFORMANCE SOUND AND ARE FELT THROUGH THE PEDALS, THE DRIVER'S SEAT AND STEERING WHEEL, THERE IS A PUTTER AND HESITATES WHILE ACCELERATING.

ON 10/10/2018 AT 6:45 AM, 63 DEGREES FAHRENHEIT, CERTIFIED/CURRENT LPT WARRANTY/15' REGAL PREM 2/ 60,600 OD 2.0L/TURBO/AUTOMATIC TRANS, CONDITIONS-SPEED-10 MPH-STEERING STRAIGHT, BRAKE AT 100%, ENGINE PERFORMANCE ISSUES MANIFESTED DURING THE END PORTION OF THE TRIP WHILE IN DRIVE, AT IDLE, DROPPING OFF FRIEND AT HIS WORKPLACE PARKING LOT. TRIP CHARACTERISTICS-TOTAL TRIP 35 MIN AT 20 TOTAL MILES-FIRST PART OF THE TRIP AT 45 MPH FOR 15 MIN/THE MIDDLE PART OF THE TRIP AT 70 MPH FOR 12 MIN/END PORTION OF THE TRIP AT 15-25 MPH FOR 6 MIN/IDLE AT 2 MIN-ENGINE PERFORMANCE-SUDDEN ONSET OF HIGH, ROUGH IDLE OR ENGINE HESITATION? CHARACTERISTICS SEEMED TO INCLUDE INCONSISTENT ENGINE PERFORMANCE SOUND AND FEEL FELT THROUGH THE PEDALS, THE DRIVER'S SEAT AND STEERING WHEEL, BRAKE PEDAL DEPRESSED AT 100%, IMMEDIATELY AFTER MOVING THE AUTOMATIC TRANSMISSION KNOB FROM PARK TO DRIVE, ENGINE TEMP WITHIN NORMAL PARAMETERS, GAS LEVEL 35 MILES TILL E. IN DRIVE, ACCELERATOR AT 15-20%, DROVE 35 MPH FOR 5 MILES TO A SHELL GAS PUMP, SHIFTED TO PARK, BRAKE DEPRESSED AT 100%, DEPRESSED ON/OFF ENGINE BUTTON, ENGAGED THE ELECTRONIC PARKING SYSTEM, MAX FUELED VEHICLE WITH HIGH-GRADE UNLEADED FUEL. VEHICLE SAT, UNSTARTED, FOR 15 MIN AFTER FUELING. DROVE TO THE AUTOZONE ACROSS THE STREET, 1 MILE/20 MP, EXPERIENCED A MIL COMING ON SOLID IN THE IP WHILE PARKING THE VEHICLE. OBTAINED MIL PRINTOUT READ: "CYLINDER 4 MISFIRE DETECTED"/"ASE CERTIFIED MASTER TECHNICIANS HAVE SEEN THIS ISSUE ON YOUR TYPE OF VEHICLE AND THE MOST LIKELY SOLUTION IS: PERFORM ENGINE DE-CARBON PROCEDURE"/CODE P0304. AT PRESENT: ON START-SOLID MIL, ROUGH, HIGH IDLE AT 1500 RPMS, AFTER 1-2 MIN-MIL,TCS SOLID, ROUGH IDLE AT 1000 RPMS. DRIVABILITY AT ALL SPEEDS AFFECTED BUT LESS SO AT HIGHER SPEEDS, *SIGNIFICANT LURCH AT 15-35 MPH FEELS LIKE HARD SHIFT/INTERMITTENT. I CHANGED OIL/AIR FILTERS, DRIVEN 2 MILES SINCE PARKING AT RESIDENCE.

I WAS STRUCK ON THE DRIVERS SIDE BY ANOTHER VEHICLE THAT RAN A RED LIGHT WHILE I WAS GOING THROUGH AN INTERSECTION. SIDE AIRBAGS DEPLOYED BUT EMERGENCY FUEL SHUT OFF DID NOT WORK TO SHUT OFF FUEL SUPPLY OR FUEL IT GOT STUCK. THIS RESULTED IN FURTHER DAMAGE AND INJURIES AS THE CAR SPUN OUT OF CONTROL AND DID NOT STOP UNTIL IT HIT A TREE.