10w30, we used to own an 87, so we know.
yes usually from over revving
No.
Go to google images and look it up.
I would suspect a failing ignition control module.
The 1988 Chevrolet Celebrity uses idistributorless ignition systems, the timing is controlled by the ECM. there is no provision for adjustment.
It is attached to the throttle body exactly opposite the cam/lever with the cable(s) on it.
I would suggest you take the car to an automotive upholstery firm.
That would tend to indicate that the alternator was not charging the battery for that interval.
Transmission fluid doesn't have a cap. It's added with a small funnel to the dipstick tube.
You have a fuel leak somewhere. Look for loose connections or bad hose.
194 is the number bulb for nearly very GM product around that era.
Assuming you are referring to the head liner I would suggest a decent automotive upholstery firm.