What gas does a 2004 Acura RSX take?

The fuel requirements for a 2004 Acura RSX depend on the trim level: base RSX models typically run on regular unleaded 87 octane, while the high-performance RSX Type-S requires premium unleaded gasoline (91 octane or higher).

In more detail, owners should follow the octane recommendations in the vehicle’s manual and use gasoline that complies with local standards. In most markets, gasoline with up to 10% ethanol (E10) is compatible with the RSX, but you should verify fuel specifications in your manual or on the fuel filler label.

Fuel requirements by RSX trim

Below is a concise breakdown of the fuel type expectations by model:

• 
  RSX Base: Regular unleaded gasoline with an octane rating of 87 or higher. Premium gasoline is not required, but may be used. Compatible with up to 10% ethanol (E10) in most regions.
  


• 
  RSX Type-S: Premium unleaded gasoline with an octane rating of 91 or higher. Compatible with up to 10% ethanol (E10) in most regions.
  

For both trims, always fuel according to the owner's manual and local fuel availability. Using the recommended octane helps maintain performance and engine protection, especially in the Type-S, where lower octane can lead to knocking or reduced performance.

Summary

In short, the 2004 RSX base model runs on regular 87 octane gasoline, whereas the RSX Type-S requires premium 91 octane or higher. Both trims generally tolerate up to 10% ethanol, but confirm with your manual or the filler-label specifications. Following these guidelines helps ensure optimal performance and engine longevity.

Does the Acura RSX require premium gas?

Yes, the Acura RSX Type-S requires premium unleaded gasoline, while the base model only requires unleaded gas. The higher compression ratio in the Type-S engine is designed for premium fuel to prevent spark knock and ensure optimal performance and longevity. The base RSX model is engineered to run on regular unleaded gasoline. 

• RSX Type-S: The Type-S model specifically recommends premium unleaded gas due to its high-compression engine. Using premium fuel helps it perform as designed and prevents engine damage from pre-ignition.
• Base RSX: The non-Type-S models are designed to run on regular unleaded gasoline.

For any vehicle, you should always check the owner's manual for the most accurate and specific fuel recommendation for your model.

What kind of gas does a 2004 Acura take?

2004 Acura TL Specifications

POWERTRAIN
Engine Type	3.2-liter, SOHC VTEC V-6
Battery	12V, maintenance free
Recommended Fuel	Premium Unleaded, 91 Octane
Layout	Transverse mounted, front engine, front-wheel-drive

Do I use 87 or 89 gas?

Regular (87 octane) – The standard fuel for most vehicles. Mid-grade (89 octane) – Slightly more resistant to knocking. Premium (91–93 octane) – Designed for high-performance or turbocharged engines.

What kind of gas does a 2004 Acura RSX take?

Premium unleaded
Fuel & MPG

Cost to Drive	$263/mo
Fuel type	Premium unleaded (required)
EPA city/highway MPG	21/28 MPG