![]() There is a pervasive myth that using a higher-octane fuel is better for your car’s performance. What Happens If You Put In Higher Octane Fuel Into An Engine That Doesn’t Need It? In addition to this, it can be tricky to know what the differences are between octane levels. The fuel nozzles are all the same design and next to each other at the fuel pump. Putting the wrong octane fuel into your car is a very common mistake. If you think you have put gasoline into your diesel engine, schedule an appointment with your local AAMCO Colorado location right away to meet with one of our expert mechanics. Improper draining can cause further damage to your engine. You will need to see a qualified mechanic to have both your fuel lines and the gas tank drained completely. Never force drive your diesel engine with gasoline fuel, if possible have your car towed, as the potential damage from driving your car will almost certainly be more costly. Once you have realized the wrong fuel has gone into your diesel engine, turn your car off right away. What to Do If You Put Gasoline Into Your Diesel Engine However, burning straight gasoline in any diesel engine will almost certainly cause irreparable damage. In newer “clean diesel” cars, any amount of gasoline in the system will damage the very sensitive emissions controls. Gasoline is more combustible, meaning it will detonate faster, causing misfires, reduced engine power, knocking, and potentially cause permanent damage to your engine. Gasoline in a Diesel Engine What Happens if You Put Gasoline in a Diesel Engine?Ī diesel engine can sustain damage immediately after having gasoline put into it. While you might be able to do this yourself, it is safest to ask for professional help with draining your cars fuel lines. Then you will need to drain out your gas tank and fuel lines. ![]() This will help prevent damage to your internal engine components. If you do put gasoline into your diesel engine, or diesel fuel into your gas engine, the best thing to do is to turn off your engine as soon as you realize the mistake. What To Do If You Put Diesel Into Your Gas Engine Once your tank runs out of any gasoline, your engine will shut off as it can not burn the diesel fuel. Gasoline engines are not designed to burn this type of fuel. This is because diesel fuel does not vaporize the same way that gasoline does. Theoretically, diesel fuel should not ignite in an engine that requires gasoline. This in turn can lead to problems starting your engine, as a car filled with gasoline of too high an octane will have trouble mixing with air.Diesel Fuel in a Gasoline Engine What Happens if You Put Diesel Fuel in a Gas Engine? "However, the higher the octane, the lower the volatility, making it more difficult for the gas to compress with the air. The blends will be different for summer and winter fuels." "Since high temperatures increase volatility, it is desirable to have a low volatility fuel for warm temperatures and a high volatility fuel for cold weather. Here are some quotes that are interesting: Here are a couple of articles that i find interesting: Gas is so complex and interesting, not to mention somewhat expensive for some. ill be sticking with 87 mostly and in the warmer months on special occassions, ill be using 93 to get some power and clean out any dirty injectors from winter fuels. I have the link from another titan forum for the results but i dont really know if i can post it since it's not a bitog sponsor. The nissan titan has a 9.8:1 compression ratio and 87 octane can be used for 9.9:1 or lower (or so i was told). Others have said that the titan's ECU is similar to the Infiniti's QX56 ECU, which was told to run premium in their manauls. Results showed 245 hp to a 254 hp increase. ![]() There were dyno tests done by running 5 tanks of 87 and then dynoing it and then doing another 5 tanks of 93 and doing a dyno on it. The only times where i can take advantage of using premium is only during WOT on the upper RPM band or pulling heavy load conditions, like towing. ![]() Other engines can be damaged from going to a higher octane.įor my particular case (my 06 nissan titan V8), i found that it's spec'ed for 87 but i can definitely take advantage of premium. SOME engines can take advantage of the higher octane. ![]() the general consensus is that you should use what your car is spec'ed for. ![]()
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