Would have saved greif to run a die over the existing stud and use antiseize or grease in the future to keep threads from galling.

Drill a hole and tread in a dry wall screw and pull it out with a pliers. Socket will loosen buy rocking tight to loose.

Drill a hole and tread in a dry wall screw and pull it out with a pliers. Socket will loosen buy rocking tight to loose.

Just make sure they actually do it. To many brake fluid tranny fluid coolant, even power steering flush scams where they do nothing but write up the bill.

They are feeding you a line. Contaminated fuel is ridiculous. Ask them to explain their diagnosis. My guess is they misdiagnosed the fuel pump like the other repairs they did.

The 2.4 is a mess. Mine is now burning oil and chain rattle at 84k. Any day now I’m pulling it down and doing a timing, piston ring job. GM did a factory repair. It blew a rod out the block a week later and they put in a supposed low mile junk yard motor that is now in need of a rebuild and gave me a check to do it myself after about a month of fighting with them.

Premium does not retard timing. It allows the ecm to advance timing. Yours did not stop pinging due to timing retard. It stopped pinging because low octane fuel was not detonating.

Engines have knock sensors to keep them from knocking. If your engine timing is being retarded due to low octane fuel it will definitely benefit from higher octane fuel.

Newer vehicles have higher compression ratios than older vehicles. The knock sensor keeps advancing timing until it recognizes knock and retards timing again. Newer vehicles can benefit in HP and MPG gains from premium fuel. The premium will not have ethanol in either which is a good thing. My 2015 Silverado does better on mid grade and even better on premium. Only time I run better grade is when I tow and it does make more power and my OBD scanner confirms the timing stays advanced more thus more power and MPG.

Might be. Could also be a slow draw on vehicle.