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Longterm car storage - Will Marshall
what precautions are necessary if a vehicle is to be kept stationary outdoors and offroad without beng started longterm - lets say around 6mths.

Aside from removing the battery I suppose you have to drain the oil
and petrol, not quite sure how to do the latter?

Does it have to be on axle stands or not?
Longterm car storage - Pugugly
I'd leave the oil in the engine - it will help protect engine internals from corrosion. Use up the petrol by driving around ? or syphon it out. I, personally, wouldn't remove the battery just put it on a Smart Charger - Pump up the tyres to a higher pressure or axle stands.
Longterm car storage - Will Marshall
Do you have to change the oil again before restarting?

if normal air pressure is 30 or 35 how much higher please?
Longterm car storage - Pugugly
I think it may tell you in the manuals. Seem to remember reading it in there sometime.
Longterm car storage - ex-Triumph man
Do you know anyone you could trust that could drive the car round the block, for example, every so often?
Longterm car storage - Pugugly
You can actually buy petrol refreshing compounds - in theory they prevent modern fuels "going off"
Longterm car storage - Will Marshall
I do up to a point
However I know people can be well meaning initially over things like this then find it a bit of a chore after the novelty wears off, esp as the storage location is a few miles away, I don't have a driveway otherwise a neigbour could have done that o'k
Longterm car storage - Will Marshall
Thanks, has anyone here tried petrol refreshing compounds?

I'll look up my manual about oil change.

Edited by Will Marshall on 30/08/2009 at 10:54

Longterm car storage - gordonbennet
If 'twer me i'd make sure the vehicle is clean and especially salt free underneath, maybe good oportunity to give those brake pipes a grease up.

6 months isn't long, cars stand for years in compounds sometimes and they just connect a jump pack and away you go, once it's been in the valet bay you'd never know....except for the state of the discs.

If you can try and cover the wheels in some black plastic...to keep dierect sunlight off the tyres and to stop the rain forcing in and rusting your discs too much.

I'd be inclined to give it an oil change before storage, clean fresh oil won't have any nasties up to no good during standing.

Also check the antifreeze is up to full strength including the washer bottle and jets unless you want to drain that.

Can you leave a bit of air on, maybe a window cracked open to stop too much condensation doing damage to leather?...presuming the car is outside.

Try not to leave under somewhere that birds congregate unless you are going to purchase a breathable cover.
Longterm car storage - Pugugly
....and a mouse trap or two !
Longterm car storage - gordonbennet
Good thought PU, and put at least one under the bonnet too.

Another thought here, try to leave the handbrake off, don't want that sticking on.

Secondly if it's raining very heavily on route to storage slip the clutch a little when you stop to make sure it's dry, and try not to park on grass if you can possible avoid it.
A rusted solid clutch really is a pita.
Longterm car storage - Alby Back
When I lived and worked in South America many years ago I used to have a flat in the UK. My car would stand outside it for months at a time. I would disconnect the battery to stop it being run down by the clock or whatever. Apart from that though I would simply connect it up again on my occasional trips back to the UK and drive the car as normal.

Precautions of course would include checking fluids and tyre pressures on my return. It was never a problem despite stretches of three to six months standing punctuated by maybe a short week of use in between.

That car, a Mk2 Golf GTi had a strange life. It would sit as I have described for ages and then maybe be taken on a holiday trip skiing in the winter or a trans Europe run in the summer. It didn't seem to mind.
Longterm car storage - steveo3002
6 months is nothing

id suggest a fresh oil change and a good pressure wash underneath , then take it for a good blast to make sure the exhaust gets hot and is dry inside

pump the tyres to 40-45

battery off

a good coat of wax would be nice too
Longterm car storage - Simon
I agree six months is not long at all. The main things that I would say to do are to pump the tyres well over their normal pressure, disconnect the battery and all should be well. The petrol in the tank will be fine for six months, I've had cars that have stood for years and fired up on the same fuel. I'm not even sure whether I would change the oil (unless it is about due anyway). I can't see it degenerating much in six months sitting in the sump doing nothing.
Longterm car storage - bathtub tom
My daughter's MX5 stood in the open for ten months.

I pumped the tyres to about 45 PSI, disconnected the battery,sprayed WD40 around the engine bay (as advised here - rodent deterrent), left it in gear with the handbrake off and wheel chocked with a brick. It had it's hard top on. I wanted to change the oil, but she wouldn't let me.

When we collected it, I put jump leads on it while I gave it a general check-over and adjusted the tyre pressures. Re-connected the battery, pulled out the fuel injection relay and gave it several long bursts on the starter motor until oil pressure had come right up (oil pressure gauge, no oil pressure warning lamp). I then put it in gear and operated the starter with the clutch depressed, just to make sure the plate hadn't stuck. Re-fitted the FI relay and it started and ran fine. I then ran it up and down the road for a bit using the brakes (they felt and sounded awful).

It only had about a quarter tank of fuel, so we brimmed it at the nearest garage.

I got it home, gave it an oil and filter change. Had the wheels off to check the brakes (I've seen better and also much worse).

It seems fine.
Longterm car storage - Andrew-T
Why not read HJ's FAQ no.41 above?
Longterm car storage - Will Marshall
Why not indeed? Thanks for the suggestion Andrew.

It's always nice to get personal experiences though.
Thank you for all the tips.

Why the need to pull out the fuel injection relay before starting?

Plus I flushed and changed the oil and filter about 700 miles (a couple of months) ago would that suffice?

I won't have recourse to a trickle charger, it will be outdoors, so I will remove the battery.

Edited by Will Marshall on 30/08/2009 at 11:51

Longterm car storage - bell boy
This week i went to my quiet corner to er borrow some bits from a long time stander and upon opening the bonet find its been used as a toilet by rats,closer examination of the area and this parked car is next to a path that the rats make between buildins so is obviously a rat run, be aware these vermin will eat and crap on anything ,not nice,not nice at all,car now abandoned and destined for the big smelter
Longterm car storage - ifithelps
...Why the need to pull out the fuel injection relay before starting?...

Will,

The idea is to turn the engine over slowly on the starter motor without it starting to circulate some oil.

It's a bit like an upturned sauce bottle, over the weeks and months, more and more oil will drain into the sump at the bottom of the engine.

If you're not confident about pulling bits off, you could just 'pulse' the starter with the ignition key a few times in the hope the car doesn't start immediately.

Even if it does start straight away, it's unlikely to do any major damage.

Longterm car storage - alfatrike
to aviod damp if you don't or can't leave the window open use a clothes cupboard de-humidifier. they are the ones with water absorbing crystals and a tray to catch the drips. i used a mob bucket as it had a larger capacity.
Longterm car storage - Will Marshall
Thanks for explanation ifithelps, I get it!

Rats - yuk!

Good tip about the dehumidifier, I remember from leaving a towel in a car with not the best window seals that it was damp after a couple of rainy weeks.
Longterm car storage - ifithelps
...use a clothes cupboard de-humidifier....

An old caravanners' tip is to use a seed tray about half full of salt.