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Switching from premium to regular gas can lower costs at the pump, ... For premium support please call: 800-290-4726 more ways to reach us. Mail. Sign in. Subscriptions; Business; Entertainment;
Using regular gas when premium is required can cause the engine to knock, impair its performance and possibly lead to long-term damage. Be kind to your older vehicle's carburetor.
High gas prices aren't going away soon, but if you're paying extra for premium, you probably can save the money. And don't even think about midgrade.
"Regular" unleaded fuel is 95 RON; "Premium" fuel is rated at 97 RON (Shell's V-Power Racing is rated minimum 97 RON). Petron sells 100 RON in selected outlets. [70] Mexico: The standard octane index is 87 AKI for regular fuel and anywhere from 91 to 93 AKI for premium fuel, although 91 AKI is the most common octane number for premium fuel.
The presence of these degradation products in the fuel tank or fuel lines plus a carburetor or fuel injection components makes it harder to start the engine or causes reduced engine performance [15] On resumption of regular engine use, the buildup may or may not be eventually cleaned out by the flow of fresh gasoline. The addition of a fuel ...
The Skyactiv-G [7] is a family of direct injection petrol engines. The engine compression ratio is 14:1, except in the U.S. market where it is 13:1 so the engine can operate on regular instead of premium gasoline; the lower compression ratio reduces torque and fuel economy by 3 to 5 percent. [8]
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The 4.6 Tau V8 Engine was named to the Wards 10 Best Engine Awards for 2009 and 2010. [7] The Tau V8 received the award due to the engine's "velvety power delivery, competitive performance, and attainable price-- all of which epitomize the Korean auto maker's drive for world-class engineering", as quoted by Forbes .