Honda CR-V 2019 Owner's Manual page 36

Is it possible to use
unleaded petrol with a
Research Octane Number
(RON) of 91 or higher on
this vehicle?
Your vehicle is designed to operate on premium unleaded
petrol with a research octane of 95 or higher. If this octane
grade is unavailable, regular unleaded petrol with a research
octane of 91 or higher may be used temporarily.
The use of regular unleaded petrol can cause metallic knocking
noises in the engine and will result in decreased engine
performance. The long-term use of regular-grade petrol can
lead to engine damage.
* Not available on all models
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