Gasoline Octane
Use regular unleaded gasoline with a posted octane rating of 87 or higher. If the octane rating is less than 87, you may notice an audible knocking noise when you drive, commonly referred to as spark knock. If this occurs, use a gasoline rated at 87 octane or higher as soon as possible.
If you are using gasoline rated at 87 octane or higher and you hear heavy knocking, your engine needs service.
See also:
2012 Buick Regal Review by Warren Brown
It was a good car, but something less than the “high-performance variant” of
the Buick Regal promised for market delivery in the spring of 2012. That will be
the overtly sporty Regal GS, with ...
Safety Belt Reminder Light
When the key is turned to RUN or START, a
chime will sound for several seconds to remind
you buckle your safety belt. The driver safety belt
light will also come on and stay on for several
seconds ...
Checking the Restraint Systems
Safety Belts
Now and then, check that the safety belt reminder light,
safety belts, buckles, latch plates, retractors, and
anchorages are all working properly.
Look for any other loose or damage ...