Maybe none, maybe a lot.
Diesel fuel is technically an oil. As such, it also acts as a lubricant for all parts of the fuel system. While most diesel engines will probably tolerate up to 30% mix of regular gasoline in the winter as a thinner for the cold diesel, that ratio drops as the weather warms up. Your numbers indicate a 33% ratio. Again, depending on the temperature where you are running this, you are definitely at the maximum end of the spectrum for very cold weather, and as such it doesn't sound like a good idea to run this mixture. Gasoline also affects the cetane rating of diesel, so that much regular gasoline will likely result in poor combustion, performance, and efficiency also.
You might get away with adding a small bottle of 2 stroke oil to compensate. This mixture will not likely damage your engine for a one-time run, and add more diesel to the tank as soon as possible to dilute it. But there is always the risk that your particular car in your particular circumstances, weather, and usage level might be just "wrong enough" of conditions to cause engine or injector pump damage. Hard to say for sure.
It will do damage to a diesel engine. Drain the tank and flush the fuel lines. Do not run this engine with unleaded gasoline in the tank.
Empty your tank out, drain the fuel lines, as the gasoline will damage your diesel engine.
If the van has a diesel engine, then you MUST use diesel fuel. Unleaded gasoline will destroy a diesel engine. Diesel fuel is also used as a lubricant in a diesel engine. The use of any other fuel except diesel will result in serious damage. If you have put unleaded in your diesel, do not start or drive this vehicle until you drain the tank and change all the fuel filters.If the van has a diesel engine, then you MUST use diesel fuel. Unleaded gasoline will destroy a diesel engine. Diesel fuel is also used as a lubricant in a diesel engine. The use of any other fuel except diesel will result in serious damage. If you have put unleaded in your diesel, do not start or drive this vehicle until you drain the tank and change all the fuel filters.
Will cause engine damage If large amount in tank car will not start or run
If the van is a diesel, then you need to get the unleaded fuel out of the tank and drain all fuel lines and change the filter. This will damage your diesel engine. If you only put a small amount, such as a couple of gallons, then just drain the tank.If the van is a diesel, then you need to get the unleaded fuel out of the tank and drain all fuel lines and change the filter. This will damage your diesel engine. If you only put a small amount, such as a couple of gallons, then just drain the tank.
Bad things can happen, due not operate the engine until having the fuel tank drianed and clean diesel added.
When I STOP AT A STATION i GOT UNLEADED GAS BUT FOUND OUT DIESEL GAS WAS MIXED IN WHAT WILL HAPPEN TO MY UNLEADED TRUCK
Yes, it will destroy a diesel engine.
If the engine is a diesel use diesel fuel. If the engine is a gasoline engine use unleaded gasoline.
If gasoline is used in a diesel it will damage the engine. If diesel is used in a gasoline engine it will do no real damage as the engine will not run.
Any diesel fuel is unleaded. There are summer and winter diesel in some countries. Diesel on cars work till 400000 - 500000km if the owner takes care. On ships it may last 50 years. If you are asking about a diesel engine running on unleaded gasoline (petrol) it will only run for a manner of minutes, if at all.
Yes, putting petrol/gasoline in a diesel engine and running it will cause severe damage to the engine.