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Ford fiesta - Changed my oil once in ten years (and 80k miles) - OceanMan

Got an 09 fiesta. I've written about it a few times here in the past but thought I'd give an update since I keep getting oil warnings (they pop on for one second then disappear). My ex owned this car for 5 years before me and I've owned it for about five years since. She never changed the oil. I've changed it once and topped it up once.

Anyway, I bought a bottle yesterday and I'll probably top it up or change it again next week.

Ford fiesta - Changed my oil once in ten years (and 80k miles) - Chris M

"I'll probably top it up or change it again next week."

My advice would be not to rush into anything you may later regret.

Ford fiesta - Changed my oil once in ten years (and 80k miles) - OceanMan

"I'll probably top it up or change it again next week."

My advice would be not to rush into anything you may later regret.

See this is partly why I haven't changed it more. I've read (somewhere) that changing the oil after a few years can cause more problems than it solves?

Ford fiesta - Changed my oil once in ten years (and 80k miles) - Xileno

Can't see how that could ever be the case. Provided the correct grade and filter is used you could change it once a month. Whether that's sensible and necessary is another matter.

Ford fiesta - Changed my oil once in ten years (and 80k miles) - Andrew-T

Got an 09 fiesta. I've written about it a few times here in the past but thought I'd give an update since I keep getting oil warnings (they pop on for one second then disappear). My ex owned this car for 5 years before me and I've owned it for about five years since. She never changed the oil. I've changed it once and topped it up once.

Anyway, I bought a bottle yesterday and I'll probably top it up or change it again next week.

I don't know whether to admire chutzpah, or reprimand anyone so uncaring about their (presumably valued) assets. If you are saying that the sump may still contain some 10-year-old oil, I would say that is something to be ashamed, not proud, of. Of course many robust engines will carry on working with knackered lubrication, but changing the oil (and maybe filter) every year or two is generally accepted to be worth doing.

That is if you can shift the drain plug, of course .... :-)

Ford fiesta - Changed my oil once in ten years (and 80k miles) - gordonbennet

Hope you take some pics of what was once an oil filter should it come off without the help of an angle grinder, and a video of you poking screwdrivers up the sump bung to encourage the tar within to flow would make a great video on the Tube....i've witnessed having to puoke the sump bung on a Perkin engined Transit Diesel around 1970, owned by the worlds tightest wad.

Just Rolled In (Youtube channel) often shows videos of cars that have gone for long periods without fresh oil, the insides of the engine make grim viewing.

I too would be wary now of changing the oil, certainly wouldn't consider flushing the engine because the carbon build up is likely to be overwhelming and it starting to break up would plug the oil pick up in no time.

Ford fiesta - Changed my oil once in ten years (and 80k miles) - SLO76
All credit to how tough these wee engines are. But I wouldn’t want to own it after you and the fuel economy will almost certainly be worse than a well cared for example.

My dearest wife had a very tidy little Peugeot 106 when I met her. She announced that it wouldn’t do more than 65/70mph and was drinking fuel one day and I took it for a run, sure enough it had no power at all where a 1.1 106 should be quite lively. On my return I asked her when it had last been serviced, her answer was that “it had a Mot.” Turns out the poor thing hadn’t seen oil in years and was running in tar and nearly ready to seize. I traded it in for a very nice Honda Civic and took over car maintenance duties. That ran for years and only cost £700 in depreciation over 4yrs because it was well cared for and it ran perfectly. Sadly the next owner ran it into a tree, so I suspect it never had need for another oil change.

It’s a false economy to scrimp on oil changes.
Ford fiesta - Changed my oil once in ten years (and 80k miles) - bathtub tom

I had to go back and check the OP wasn't John F.

Ford fiesta - Changed my oil once in ten years (and 80k miles) - Andrew-T

I had to go back and check the OP wasn't John F.

LOL ! But I think that is just a bit unfair ....

Ford fiesta - Changed my oil once in ten years (and 80k miles) - John F

I had to go back and check the OP wasn't John F.

LOL ! But I think that is just a bit unfair ....

Ho-ho! The OP is clearly a man after my own heart. My TR7 has had only four oil and filter changes since 1993 (1997, 2002, 2013 and 2019). But it has only done 73,000 miles and has had a total of fourteen oil changes since new in 1980. Oil, like whisky, does not go off with age unless unduly exposed to air and moisture.

But seriously, if this engine has had only two oil changes in 80,000 milesit probably won't have suffered much as long as it was kept above the minimum level. Even if it is neglected in the future with only a change every 20,000 miles, and if it continues to average only 5000 miles a year, it will probably last at least another eight years to 120,000 miles, by which time the rust or something else will have probablyy killed it.

See this is partly why I haven't changed it more. I've read (somewhere) that changing the oil after a few years can cause more problems than it solves?

I think the OP may have read this about changing automatic transmission oil. I have read advice from an expert that this indeed may be the case for 'sealed for life' transmissions, e.g. the ubiquitous ZF 6HP.

Ford fiesta - Changed my oil once in ten years (and 80k miles) - edlithgow

Oil, like whisky, does not go off with age unless unduly exposed to air and moisture.

Well, whisky does actually age in the cask, just not (officially) in the bottle, though I have on I think two occaisions found the corks have degraded on single malts and had to decant into metal capped wine bottles, which are much more reliable.

I used to be very firmly of the opinion that oil doesn't age, and am still of that opinion overall, but a recent argument on a motorcycle forum did turn up some somewhat unclear grounds for doubt

advrider.com/f/threads/how-time-between-oil-change...2

The standard 1-hour-videos-for-1-minute-lab-report (excluding rock instrumental breaks) BUT knock me dahn wiv a fevva, there did seem to be something in it, though its not clear exactly what.

www.youtube.com/watch?v=E1T4XFPgBeo&t=30s

www.youtube.com/watch?v=QeNLVUdoBU0&t=1s

This is storage rather than service life, and these were some very old and abused oils, which seem to have been exposed to low temperatures in storage,and, as the author seems to acknowledge, no experimental control is really possible.

Comparing a new oil, as was done, isn't strictly valid, since the formulation certainly will have changed. Better alternatives might be comparing carefully stored old oil (which probably wont be available) or comparing the results of standardised ASTMS tests run on the oil when it was produced, which probably wont be available either, though they might be in a (probably secret) archive somewhere.

This seems particularly a problem when interpreting the oxidation numbers, when a comparable control would be helpful.


Ford fiesta - Changed my oil once in ten years (and 80k miles) - Big John

Anyway, I bought a bottle yesterday and I'll probably top it up or change it again next week.

Don't bother changing the oil - I think you might need to change the car.

Ford fiesta - Changed my oil once in ten years (and 80k miles) - edlithgow

Two different things here

Not changing the oil in a few years could easily be OK. As I've posted before, I didn't change the Skywing for about 6 and it got quite a lot cleaner over that time, becoming ludicrously shiny (see pictures).

bobistheoilguy.com/forums/threads/engine-after-sit.../

This might be partly due to the unusual oil mix I was using, though, plus my low mileage and Taiwan's benign high temperatures.

Not topping up the oil even when you are getting the oil light come on, OTOH, suggests that

(a) you nevertheless STILL dont know your oil level,otherwise you would have mentioned it and

(b) that it is probably very low.

This is strange, given that there is clearly some mechanical awareness (if not sympathy) available.

Perhaps you want a new car, in which case the awareness must fall short of realising that new cars are utter c***, and that old ones should thus be preserved for as long as possible (though fortunately 09 isnt old enough to be really upsetting).

My landlady (when I was working in Bracknell) once asked me what this light was that had been on for a while in her nice little Fiesta. No oil on the dipstick, just a splattering of grey bearing metal slurry. Was still going though.

Oo-er! A sexist lubrication theme emerges.

Fnar fnar!

Edited by edlithgow on 27/01/2025 at 08:35

Ford fiesta - Changed my oil once in ten years (and 80k miles) - Adampr

Just keep going until it burns enough oil that your top-ups mean the oil is fully replaced every six months.

Ford fiesta - Changed my oil once in ten years (and 80k miles) - edlithgow

Just keep going until it burns enough oil that your top-ups mean the oil is fully replaced every six months.

That might work if there were top-ups

Ford fiesta - Changed my oil once in ten years (and 80k miles) - Xileno

Seems a lot of 'maybe' and 'probably' regarding something as relatively cheap as an oil filter and gallon of oil!

Ford fiesta - Changed my oil once in ten years (and 80k miles) - Brit_in_Germany

Like the Audi 2.0 tfsi engined cars. A change of oil was a waste of time but a filter change was in order.

Ford fiesta - Changed my oil once in ten years (and 80k miles) - Big John

Just keep going until it burns enough oil that your top-ups mean the oil is fully replaced every six months.

My Dad had a Cortina mkII that did that

Ford fiesta - Changed my oil once in ten years (and 80k miles) - edlithgow

Just keep going until it burns enough oil that your top-ups mean the oil is fully replaced every six months.

My Dad had a Cortina mkII that did that

But it probably didn't have an exhaust catalyst which would have been poisoned. They dont make them like that any more.

Ford fiesta - Changed my oil once in ten years (and 80k miles) - John F

Just keep going until it burns enough oil that your top-ups mean the oil is fully replaced every six months.

My Dad had a Cortina mkII that did that

But it probably didn't have an exhaust catalyst which would have been poisoned. They dont make them like that any more.

It takes a lot to poison a cat. Back in the '90s we had a 2.0GL Passat Estate. I remember having to drive for many miles on holiday in France on three cylinders before I could get a faulty coil pack replaced; around 150,000 miles on the clock. By the time we replaced it, it had over 240,000 miles and was using a lot of oil - about a litre every 1500 miles IIRC. It always easily passed the emissions test.

Ford fiesta - Changed my oil once in ten years (and 80k miles) - Andrew-T

Just keep going until it burns enough oil that your top-ups mean the oil is fully replaced every six months.

My Dad had a Cortina mkII that did that

By the time my 1962 Morris 1100 had 50K miles on the clock, I was adding oil at every stop for petrol. As I was driving mostly in Canada then, the cost was so small that fitting new stem seals wasn't really worth the trouble :-)

Ford fiesta - Changed my oil once in ten years (and 80k miles) - bathtub tom

Wife had an old Minx that drank oil. I used to collect the stuff colleagues drained out of their cars and use it for topping up. Then this new-fangled Duckhams Q20-50 stuff came along that I tried in my car. When I changed it, I used it to top up the Minx. the oil consumption started dropping until it only needed occasional top-ups.

Ford fiesta - Changed my oil once in ten years (and 80k miles) - OceanMan

Quick update. I checked the oil earlier and the stick was DRY. No oil on my fingers when I touched it. Added two litres and it seems all right for now. I understand the importance of oil changes but being honest I'm a toxic procrastinator and I work 8-12 hours per day generally so i can't guarantee I'll get a full change done this week. If I do I'll film it and upload it for anyone interested.

Ps. It seems like a waste to immediately switch the oil after filling it up but I've never claimed to be smart

Ford fiesta - Changed my oil once in ten years (and 80k miles) - Andrew-T

It seems like a waste to immediately switch the oil after filling it up but I've never claimed to be smart

If the engine loses oil steadily and you top it up near the mark occasionally, it follows that most of the oil is fairly fresh. But you still need to remember what might be collecting in the filter !

Ford fiesta - Changed my oil once in ten years (and 80k miles) - edlithgow

And/or in the sump,

You COULD just change the filter, but quite a lot of debris gets through a standard filter

The description "you top it up near the mark ococasionally"of course doesn't really apply in this case. Its been run very low, which might have put wear metals from cams and bearing material into the oil, which was probably quite dirty (and thus a bit abrasive). in the first place

It might be OK though.

TBH being a cheapskate I might be a bit conflicted about dumping 2L of new oil, Though I'd probably still do it, I might do a blotter spot test on the oil first, to get an idea of the amount of debris in the oil (see pictures in BITOG thread linked above).

I have scanned a series of these (showing thermal breakdown of vegetable oil as a model) digitally using software for TLC chromatograms, and it looked like it would allow a numerical comparison of the debris levels between oil samples, though I havn;t done that, and it wouldnt provide actual quantition.

Ford fiesta - Changed my oil once in ten years (and 80k miles) - madf

In my days of running bangers when I was young, foolish and skint (as opposed to old, foolish and skint ?) I used to habitually visit sc***yards for spares.

It was amazing how much congealed black rubbery oil there was in sumps where the oil had never been changed - has some wonderful pictures of US cars where the oil has congealed to look like jelly pudding and will not flow out of the drain plug. You Tube - not available then as the Internet did not exist nor did PCs!)