what happens if you put diesel fuel in a gas engine?

Answer 1

engine will lock up

Answer 2

A couple of things occur in this instance.

- The engine may fire depending on how much diesel was mixed into the gas but it will not run well and the added sulfur resulting from the diesel could damage sensors if it is run for any amount of time (Oxygen sensors, cat. converter)

If the enigine has not ran the problem is more of a nuisance than anything. You will need to flush the system by draining the tank and running clean fuel through the lines (usually by disconnecting the line at the engine and allowing the fuel pump to push or pull the new fuel through).

Next you will need to change the oil in the motor. Diesel acts as a solvent when mixed with oil and greatly reduces viscosity. This is the most important issue to address since a little diesel leaking past the piston rings could deteriorate the oils ability to lubricate the engine so much that you can lose bearings in both the crankshaft and camshaft upon starting the engine since it will be essentially dry components.

I suggest disconnecting your ignition coil and cranking the engine for a minute or so to allow the new oil to be pushed throughout the engine before actually starting it.

Hope this helps.

Answer 3

Gas (petrol) and diesel engines have a certain difference - gas engine is spark fired and diesel is compression fired. So if you put diesel in to a gas engine, it will not run. But if it is only a small amount of diesel compared to gas - then it will run. My advice is not to do so. If you had some petrol already to mix with diesel - well, I guess it will not run but might (as I seen in a rare case) with lots of knocking etc. Damages the engine. You need to flush out all diesel (or dilute out) and hope no lasting damage is done.

Answer 4

Well, don't do that. It might run for a little while if it mixes with the gas in the tank, but the diesel is not as refined as the gas and burns differently. You can ruin the cylinder walls, and other combustion components by attempting to burn diesel in your gas engine.

Answer 5

Depends on how much you put in it. If you only put a couple of gallons in it just fill it with gas and burn it out. It might smoke a little but it won't hurt anything. If you filled the tank with Diesel you will need to drain the tank and fill it with gas. If you tried to start it or let it run till it died you will need to clean or relpace the spark plugs and I would recommend a new fuel filter.

Answer 6

your mechanic will get richer.

unless you never started your engine if you accidental fill it up with diesel. if you did, all you have to do is flush the diesel out from the tank and filled it up with gas and then flush it out to remove any diesel and repeat. this to make sure that all the diesel is washed out of the tank.

if the did ran with diesel, the mechanic would have to take the engine apart and cleaned each part or maybe replaced any damaged parts. so he/she will get rich and you will have a lighter wallet/purse.

Answer 7

About the same thing as if you put fruit punch in your engine.

Your car's working just don't have the greater initial energy necessary to ignite diesel fuel, so it'll just pump through your engine unburnt and liquid.

Answer 8

you will be walking, why put diesel in a gas engine when gas is less expensive?

Answer 9

it just won't start... if it does it won't run properly... if it did, it will crumble after a couple of miles... if it had not happened, you already drive a diesel-engine car.....

Answer 10

Drain it , flush it and start over, very damaging