They didnt put a filter in

They owe u an engine, they owe legal fees if u have to lawyer up

Theyre story of no responsibility is bull shit. They installed an empty filter canister

Most likely, pinched an injector o ring on install

Gotta lube em and twist, never dry push

6 yr old battery. Replace it, urs calls for agm ($300ish so go to costco)

If thats a no fix, have a tech figure it out, not autozone

A stronger mixtures lowers the freezing point, but it also raises the boiling point. It benefits both ends

I purposely mix at 60/40

Ur better off as is

U can cut any spot thats easiest. If cutting the bolt in half gives enough clearance, u dont have to play around in the tight area

Yup. Cutting wheel, or diamond cutting wheel on a rotary tool

For mopar parts, yes

For brake best and duralast, no

Ill budget rotors, but always oem pads

Keeping an old car running > any guilt over emissions

Big picture, building any new car is worse for the environment, than repairing any old car already in existence

U changed the maf sensor, and resolved the issue

Get a new maf sensor from buick parts counter

Do plan on a timing system overhaul. It does need that, sooner rather than too late