answersLogoWhite

0


Best Answer

There are a few different views on what happens if petrol is put into a diesel car, ranging from "this is horrible and will ruin the engine" through "if diesel is put in a petrol engine, it will run but misfire" and "it does depend on the make and model of the car" to, most commonly "petrol will kill a diesel engine; don't start it, have it towed to your mechanic, and have him drain the tank and the fuel lines."

Modern diesel engines use the diesel fuel as lubricant for the high pressure pump. The engine itself will run on petrol but it is only a short period of time before the pump is damaged. Petrol is a poor lubricant in comparison to diesel fuel. Generally when this happens the entire fuel system needs to be flushed to remove the petrol and the metal debris from the damaged high pressure pump, then the pump and any other damaged components need to be changed.

Additional damage can also come from pre-detonation; diesel engines run far higher compression ratios than petrol engines, this is due to, in a simplified manner, diesel being less volatile than petrol. The effect is that the petrol/air mix may detonate 'early' i.e as the piston is rising during the compression phase, before the normal ignition and combustion phase. This essentially forces the piston to go back down early and attempts to turn the engine over in reverse. The huge additional forces generated can and almost certainly will be catastrophic for most internal components.

Given the huge potential for damage to your car's engine, it might be annoying but it makes sense to have the car towed or transported to a garage, to have the tank drained and then for the system to be checked through by a mechanic.

User Avatar

Wiki User

โˆ™ 2013-09-21 17:06:54
This answer is:
User Avatar
Study guides

Add your answer:

Earn +20 pts
Q: What happens if petrol is put in a diesel car?
Write your answer...
Submit
Still have questions?
magnify glass
imp
Related questions

What happens if your car breaks down because you put petrol into your diesel car?

Gasoline in a Diesel vehicle will do some serious damage to the engine.


Can you put a diesel turbo on a petrol car?

No.


What happens when you put petrol in a Volvo diesel engine?

What happens is you must remove the petrol immediately. Petrol or gasoline will destroy a diesel engine.


What happens if you put fossil fuel in a car?

petrol and diesel are fossil fuels so if you put fossil fuels in your car it should run


Is it bad to put petrol in a diesel car?

Yes, petrol/gasoline will severely damage a diesel engine.


What happens if you accidentally put in petrol instead of diesel?

If you put petrol in a diesel vehicle do not start the engine. Petrol will do serious damage to a diesel engine. You must drain all the petrol out and flush the fuel lines.


What happen if diesel put in the petrol car?

Car will run poorly if at all.


Accidentally put diesel in petrol car?

Have it drained out and change filters


What to do if you put petrol into a diesel car?

Drain it out immediately, DO NOT run the engine.


What happens if you put diesel oil in a petrol car?

Putting diesel into a car made to take regular gas is a very bad idea. Diesel can really mess up a car's fuel system, resulting in the need for expensive repairs.


Can you put diesel oil in a petrol car?

Some oils can be used in both petrol and diesel engines. If it states diesel oil on the container it is not recommended as some diesel oils contain detergent.


Can you put petrol in a diesel car?

No,never. if ur going to try..............pls dont.

People also asked