Is premium fuel necessary in a 2018 Chevy Equinox with the 2.0 engine?

If I ever owned a TGDI engine, premium is all I want in it.

Honda and GM could have prevented their small engine fuel dilution issues with 91/93 vs. 87. But, CoO speaks loudly to the consumer.
 
If the waste gate is setting the max under-load inlet pressure (not the atmosphere)
how can this be?
The waste gate sets the max boost above atmospheric pressure. If there is less atmospheric pressure there is less total absolute pressure (Boost + atm).
 
Fed government has considered mandating 88 octane minimum nationwide.

Usual suspects threw a fit and it’s gotten shelved several times over the years.

Doesn’t help Oil sands are costly to process into higher grades
 
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