Acura 2014 TL Owner's Manual page 474

Break-in Period, Fuel Recommendation
Break-in Period
Help assure your vehicle's future
reliability and performance by paying
extra attention to how you drive
during the first 600 miles (1,000 km).
During this period:
Avoid full-throttle starts and rapid
acceleration.
Avoid hard braking for the first
200 miles (300 km).
Do not change the oil until the
multi-information display indicates
it is needed.
You should also follow these
recommendations with an
overhauled or exchanged engine, or
when the brakes are replaced.
468
Fuel Recommendation
Your vehicle is designed to operate
on premium unleaded gasoline with a
pump octane of 91 or higher. If this
octane grade is unavailable, regular
unleaded gasoline with a pump
octane of 87 or higher may be used
temporarily. The use of regular
unleaded gasoline can cause metallic
knocking noises in the engine and
will result in decreased engine
performance. The long-term use of
regular-grade gasoline can lead to
engine damage.
On vehicles with manual transmission
You may hear a knocking noise from
the engine if you drive the vehicle at
low engine speed (below about 1,000
rpm) in a higher gear. To stop this,
raise the engine speed by shifting to
a lower gear.