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If your vehicle requires diesel fuel and you accidentally put in unleaded, the unleaded fuel will actually remove the lubrication that diesel provides for the car’s parts. Diesel Vehiclesĭiesel fuel is very different than unleaded fuel, and it’s important that you pay attention to which your vehicle requires. These things could damage your engine and you should take it to your mechanic. In more serious cases, you may hear engine knocking or valve chatter because the fuel isn’t burning right. In most cases, the vehicle will run fine, but you may experience less power and a decrease in gas mileage. Depending on how advanced your vehicle’s fuel system is and other factors like how your engine is tuned, what the timing is, and how hot it runs determines how your car or truck will handle regular gas. However, if your manufacturer requires premium gasoline and you put in regular, you may have some problems. Just because premium is recommended doesn’t mean you have to use it you can easily use regular gas without compromising the engine. If your car or truck manufacturer recommends premium gasoline for your car and you put in regular, don’t panic. You may feel a difference in the way the vehicle runs and may notice an improvement in gas mileage, but that’s about all that will happen. You’re actually filling your car or truck with a different blend of gas, which means it will burn differently in your engine.
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If you usually fill your tank up with 87-octane gasoline and you accidentally put in a higher octane blend (say, 91, 92, or 93), don’t worry. Most of today’s vehicles are technologically advanced enough to tell the difference between lower octane gas and higher octane gas (regular and premium) cars and trucks have electronic fuel management systems that will notice the switch and adjust the ignition timing and fuel injection to cope. But every once in awhile, someone may accidentally fill their vehicle with a different gasoline than usual. This makes it pretty simple when we fill up at the gas station.
![2010 accord 3.5 premium fuel? 2010 accord 3.5 premium fuel?](https://s1.cdn.autoevolution.com/images/models/HONDA_Accord--2020_main.jpg)
An X indicates that the vehicle was not manufactured for a specific year.On a daily basis, most of us drive a car or truck that requires regular, unleaded gasoline. N/A indicates that we did not receive a large enough sample size to provide data for a specific year. Our subscribers provide great insights into their satisfaction by answering one simple question: If they had it to do all over again, would they definitely buy or lease the same model? In addition, respondents also rate their cars in six categories: driving experience, comfort, value, styling, audio, and climate systems.
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To learn about satisfaction, CR has collected survey data from our annual survey on more than half a million vehicles. An X indicates that the vehicle was not manufactured for a specific year. Based on this data and further analysis, we predict reliability for the latest year. Extra weight is given to the more serious areas such as major engine or transmission problems. The results are presented relative to the average model that year. Consumer Reports subscribers reported on any serious problems they had with their vehicles during the past 12 months that they considered serious because of cost, failure, safety, or downtime, in any of the trouble spots included in the table below. The reliability charts are based on responses on hundreds of thousands of vehicles from our latest Annual Auto Survey.