What kind of gas does the Acura CSX take?
Regular unleaded gasoline with an octane rating of 87 or higher. Premium fuel is not required for typical CSX operation.
The CSX is the Canada-market version of the Honda Civic sedan, and its fuel guidance aligns with Honda’s general recommendations: ordinary 87-octane gasoline is suitable, and the engine can run on gasoline containing ethanol up to 10% (E10). Using higher-octane fuels offers little or no noticeable benefit for this engine. For exact specifications, always consult the owner’s manual for your year and market.
Fuel requirements and recommendations
Key points to understand about what gasoline is suitable for the CSX and what to avoid:
- Regular unleaded gasoline with an octane rating of 87 or higher (commonly labeled 87).
- Premium gasoline (89–93 octane) is not required; it may be used, but it typically does not improve performance or efficiency on most CSX models.
- Gasoline containing up to 10% ethanol (E10) is compatible with the CSX.
- Avoid gasoline containing methanol or other non-approved additives, and avoid fuels with high ethanol content beyond E10 unless specified by Acura/Honda for your market.
Adhering to these guidelines helps preserve the fuel system and engine performance across the CSX’s lifetime.
Model notes
The CSX is the Canadian-market sibling of the Honda Civic sedan; fuel specifications therefore align with Honda’s typical guidance for this class. If you drive a different year or in a different market, verify the details in your owner’s manual and at the dealership.
Summary
In short, the Acura CSX runs on regular unleaded gasoline (87 octane) and supports up to 10% ethanol (E10). Premium fuel is optional, and you should avoid higher-ethanol blends or methanol-containing fuels unless your manual says otherwise.
