What happens when a car sits for a long time?

0 votes
asked Jul 3 in Other-Cars/Transportation by spoonerrigger (1,280 points)
What happens when a car sits for a long time?

2 Answers

0 votes
answered Jul 4 by Varticusfarticus (4,180 points)
Letting your car sit for a long time is one of the worst things you can do for a car or other vehicle.

When you let a car sit for a long time several things can happen such as the car can rust and other things can happen to the car such as things that include gaskets and seals becoming brittle, flat and brittle tires, drained battery, gummed up fuel, rust, and engine oil deteriorating.

A car can sit for many years and still be able to drive.

However the longer the car sits the worse off the car becomes and the battery goes dead after about a year of sitting and the gasoline goes bad, the tires get and develop flat spots and also get cracks and it can also be hard to start the car after it sits longer than a year.

Cars are meant to be driven and not just to sit around.

If a car sits for a year then the car battery can go dead, the tires can get flat spots and the gasoline in the tank can go bad as well and cause hard starting, engine stalling and much more.

It's best to start the car up and drive it around even just around the block to help keep the tires from developing flat spots and also keep the battery up.

And it keeps the fuel going through the fuel lines which is good as well.

If the gas is really old as in over 2 to 3 years old and it has turned to varnish then no the old gas cannot be restored.

But if the gas is just a month to a year old then adding some fuel stablizer or addign additional gasoline to the gasoline can usually restore the gasoline somewhat.

Old gasoline in a car can cause the car to not start up.

Old gasoline cannot fire properly or ignite properly in the vehicles engine as it degrades over time.

Yes old gasoline can prevent a vehicle from starting especially if the gasoline is over a year old.

Other things that can cause a vehicle to not start are bad ignition coil, bad ignition coils, bad spark plugs, bad fuel pump, low fuel pressure, bad spark plug wires, bad ignition control module, clogged fuel filter and a lot more.

But bad gas can be a cause of a vehicle not starting as well.

Gasoline will last in a vehicles gas tank for 3 to 6 months although in some cases the gasoline may still be good enough to start the engine in the vehicle even after 1 year to 2 years but the engine may run rough, stall etc.

To get rid of bad gasoline in your car you need to drop the fuel tank and drain the old gasoline out or pump the old gasoline out using a fuel pump.

Also change your fuel filters and use some fuel injector cleaner as well.

Old gas in car or other engine can damage the engine if it's old enough.

Well technically it won't be the engine that is damaged but instead the carburetor or fuel injectors will be damaged as a result of the old gasoline.

Small engines do worse on old gasoline than car engines but even car engines can have issues with old gasoline.

Signs of bad gas in your car are hard, poor acceleration, engine hesitation, engine sputter, engine starting, no engine starting, engine stalling, bad gasoline smell when you smell in the gas filler hole.

Decreased fuel mileage and Pinging Sounds When The Car Is Idling/Driving are also signs of bad gas in your car.

If you put old gas in a car then the cars fuel injectors can clog up, the fuel filter can clog up, the car may not start at all, and you could do damage to the car.

Never put any old gas in a car as it can do lots of harm.

Gasoline does expire within 3 to 6 months.

For pure gasoline the pure gasoline is usually good for up to 6 months and in some cases up to a year but for ethanol gasoline the ethanol gasoline expires within 3 months.

Pure Unleaded Fuel typically lasts up to 6 months and sometimes up to a year when stored properly and with Stabil added to the gasoline.

Gasoline is best used when fresh and any longer than 3 to 6 months the gasoline is not as good.

Gasoline goes bad because of oxidation as well as evaporation as it turns to varnish.

As gasoline ages and gets older over time the gasoline starts to evaporate and also starts changing to varnish.

And over time the gasoline begins to degrade and lose its combustibility as a result of oxidation and evaporation in three to six months, if stored in a sealed and labeled metal or plastic container.

Ethanol-gasoline blends have a shorter shelf life of two to three months while pure gasoline usually lasts a bit longer and sometimes up to 6 months.

To store gasoline long term you need to add some Stabil and keep it in a good sealed container and away from flammable sources.

Gasoline does not keep very well for longer than 3 months though as gasoline has a very short shelf life.

As it ages, it will quickly deteriorate over time. If you store this fuel long enough, it will eventually become useless.

Essentially it’s one of the most difficult fuel to store long term.

So you have two options.

You can either learn how to store gasoline long term (keep it from deteriorating) or come up with a regular fuel rotation system.

How To Store Gasoline Long Term.

Depending upon the environment your gas is stored, gas will typically only last up to a year before it starts to become highly unusable.

However, there are products that can be added to gasoline to increase shelf life.

Gasoline stabilizer additives are designed to be periodically added to your stored fuel to prevent natural deterioration of its ignition properties.

Just add the stabilizer to your gasoline within a year, mix well and you’re ready for another year. It generally needs to be done every year…not just once.

Or Just Rotate Your Gasoline.

If you would rather not deal with additives, you could also rotate your long term gasoline storage.

Just pour the gas from the container into your car and use as normal, and then refill your storage containers (small, medium, large) with fresh gas from your local station.

To ensure you stay clear of any ill deterioration effects, it’s probably best to rotate your gasoline storage every six months.

How Much Gasoline Should You Store?

This depends on a variety of personal factors, but in general, I suggest storing 25% more than it takes to get to your bug out location.

So for example, if your bugout location is 300 miles away, you’d ideally have about 25 gallons of fuel stored (assuming 15 mpg).

This will allow you to easily get to your bug out location (even if you’re starting out on fumes) without being dependent upon any gas stations.

Gasoline has a shelf life of up to 3 months before it goes bad.

Adding Stabil to the gasoline can help keep it fresh longer but even then the gasoline will not last much longer than 6 months with Stabil.

Gasoline is good for up to 3 months before it goes bad enough to not be any good any more.

However gasoline is best used when fresh as it loses it's combustibility over time.

Gasoline can be stored in a gas can for 2 to 3 months before the gasoline goes bad.

To extend the life of the stored gas in the gas can add some additive such as STABIL fuel additive which can help the gasoline last up to 6 months.

When storing gasoline in a gas can make sure to store it in a well ventilated place such as an outdoor storage shed away from any source of flame.

It's best to not store any gas longer than a few months as it loses it's quality and degrades so it's better to only keep enough gasoline around for a months of use and then get some fresh gasoline.

Gasoline does not store well long term and it's also a fire hazard as well.

In a car the gasoline usually goes bad after 6 months to a year and also in a gas can the gasoline can start to evaporate.

I never keep more gasoline stored longer than a month and I only buy enough gasoline to use in my lawnmowers, trimmers, generator etc that I'm going to use within a month or at least 2 months.
0 votes
answered Jul 17 by Walidant (2,970 points)

Hi. All the drivers changed their tires for the season. Occasionally, it's possible that many have encountered such a problem as tire stretching. Tire stretching is actually a simple matter, just as long as you know the theory. You can read car guides which describe this problem and its solution. I would also like to add that this information is completely free.

42,961 questions

47,907 answers

372 comments

2,258,328 users

...