Does 2008 Acura TL require premium gas?
Yes. The 2008 Acura TL is designed to run best on premium gasoline (91 octane or higher). Regular gas is not recommended for daily driving, though it can be used briefly if premium isn’t available. For optimal performance and longevity, use premium whenever possible.
What the owner's manual says
The 2008 TL’s owner’s manual states that premium unleaded gasoline with an octane rating of 91 or higher is recommended for both of the model’s V6 engines. Using regular unleaded gasoline can lead to reduced power, lower fuel economy, and the potential for engine knocking, especially under heavy driving conditions. In regions where octane labeling differs, Acura advises following the local equivalent of the 91-octane benchmark to maintain peak performance.
Two engines in the 2008 TL
For context, the 2008 TL lineup included two V6 options: a 3.2-liter engine in the base TL and a 3.5-liter engine in the TL Type-S. Both engines are designed to operate most effectively on premium fuel, with premium recommended to preserve horsepower, smooth operation, and overall longevity.
Practical implications for drivers
Understanding the fuel grade helps you optimize performance, reliability, and cost. Here’s what drivers should know when fueling a 2008 TL.
Considerations when choosing fuel:
- Premium gasoline with an octane rating of 91 or higher is recommended for best performance and engine efficiency.
- Regular unleaded gasoline is not the preferred fuel for daily operation; it may result in reduced power, slower acceleration, and lower fuel economy over time.
- In situations where premium isn’t available, you can use regular gasoline temporarily, but avoid sustained high-load driving until you can refuel with premium.
Once premium fueling resumes, many drivers notice the return of peak throttle response and stronger performance. Regular use of lower-octane fuel can lead to ongoing knock or pinging under certain conditions, which modern engines are designed to detect and deter, but it’s not ideal for long-term health.
Additional considerations
In hot climates, with towing duties, or during aggressive driving, premium fuel can deliver clearer performance benefits. Always verify the exact octane requirement for your specific vehicle configuration in the owner’s manual or via Acura customer resources, as regional labeling or engine options may vary. If you experience knocking or engine distress on premium fuel, seek service promptly.
Summary
The 2008 Acura TL generally requires premium gasoline (91 octane or higher) for optimal performance, particularly with the 3.5-liter engine found in the Type-S variant. Regular gasoline can be used only temporarily in emergencies, but it is not recommended for regular driving, as it can reduce power and efficiency and may cause engine knock over time. Always follow the octane guidance in your manual and consider regional variations. Premium fuel helps sustain the TL’s performance, efficiency, and longevity.
