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In general unleaded in diesel is worse but it depends on how much unleaded went into how much diesel.

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Q: Which is worse diesel in a regular car or unleaded in a diesel?
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Related questions

Is there unleaded diesel?

You can't use unleaded in a diesel car.


Do you need to fill up a Mercedes car with diesel fuel?

It depends on the model and the specification of what you have. A car filled with diesel that is supposed to have regular unleaded is not going to run at all.


What happens if you put diesel fuel injector cleaner into a unleaded car?

Diesel fuel injector cleaner will not hurt your unleaded gas motor. The diesel fuel injector cleaner is basically the same as your unleaded injector cleaner.


Car takes petrol or diesel?

Look at the fuel nozzle insert. If its green it petrol (unleaded),,,,, black diesel.


Can you put supreme unleaded after you put regular unleaded in an impala?

You can but you shouldn't use supreme unless the car is specified for supreme and if it is you shouldn't put regular in it.


What fuel is used in a car?

Unleaded Gasoline, Diesel, Ethanol, or Natural Gas depending on the engine.


What type of gas do you use for your car?

Unleaded or Diesel are the most used types of gas.There are a wide variety of fuels used by many different cars. Unleaded gasoline, diesel, E85, and LPG are the most common.


How do you know what type of gas to put into your car?

regular 87 unleaded is just fine


Diesel in a unleaded fuel engine?

Will cause engine damage If large amount in tank car will not start or run


Can you put supreme unleaded after you put regular unleaded in your car?

Yes In a modern car changing from regular to premium is no problem It may have been costing you power and fuel mileage to run regular, but if your car does not need premium it is a waste of money. On older cars running regular may damage the engine, but we are talking cars built in the 1980s or older.


You are using unleaded gas for your 1.4 vauxhall astra before when you started using super unleaded your car stops running Why does it mena that ly car is not compatible with super unleaded?

The only difference in regular unleaded fuel and super unleaded is the octane rating is higher in super unleaded fuel. Burning super unleaded would not cause your vehicle to die.


Does it help to put regular gas into your car when you put diesel in it?

Never put gas in a diesel car. And never put diesel in a gas car. An engine is built to handle one and not the other.