Monday, 29 August 2016

Engine coolant expiration date

My car's coolant is below MIN mark and I have coolant in the opened but sealed original plastic bottle. There is an expiration date but can coolant go off and how quickly? Can I use it?

Does engine coolant have an expiration date?


Antifreeze, premixed has an expiration date of 1 to 5 years when kept in the original container. Check the bottle carefully for a date, or shelf life.

Antifreeze, concentrate has an Indefinite expiration date when stored in the original container.

Once you put it in the car it does lose the ability to keep the water from overheating or from freezing in the engine when it gets old. Your owners manual should have the schedule when they suggest it be changed. I don't remember the interval that you need to change it. Ok I just checked and every two years is when you normally change the antifreeze in most cars. The antifreeze gets acidic when it gets old so it is important to change it so your engine and coolant parts don't rust and deteriorate. They do make a 5 year antifreeze so the changing interval would be longer. But in very severe climates changing it in three years might be wise even with a 5 year antifreeze.

NO, but I have noticed that some of the additives settle to the bottom if it sits for extended periods. When I use a bottle of old oil, I pour half into the engine and then shake it up to make sure everything comes out.

It doesn't expire, but it does lose its effectiveness and need changed about every 50K.
who gave me a thumbs down? It doesn't "expire" if it's just sitting around in a jug.


does unused coolant, in a bottle that has been opened, go bad?

It should be fine. In the engine its got all those metals and moisture to deal with, but not in a sealed bottle.

Google consensus is that unused antifreeze doesn't go bad as long as stored in a clean, sealed container.

I wanted to follow-up on this thread. I decided to not use the old, opened coolant, afterall. Two reasons:

1. I had questions. The fact that I was questioning it, meant that I was worried about it. Decided it wasn't worth the stress.
2. I found the following link on Prestone's website: Prestone Antifreeze/Coolant - Choose your region | Prestone®

It appears that opened coolant that is mixed with water has a shorter shelf life. Granted, I'm using Honda's coolant, and not Prestone. But, given that Honda's coolant is already 50/50 mixed, I decided to go with what Prestone says and assume that I should get a new bottle.


:What is the shelf life of Prestone® Antifreeze/Coolant?A:
If the product is still in the original sealed container or has not been diluted with water then it has a shelf life of many years.


The coolant should not expire any time soon. If it is not in an automobile being used, it is not degrading. With the cap on it, there is nothing contaminating it. From what I was just reading, there is no practical expiration if kept in the original container.

I was seeing sources which said they used coolant over a decade old without issue. When you consider they can recycle this stuff over and over again (assume by cleaning), it will last for a very long time if left alone.

I would have thought in a sealed plastic bottle it would last for ever, certainly a lot longer than 2 years.

Provided the bottle has remained tightly shut and the bottle is nearly full and the a/f is not diluted then the shelf life is way way in excess of five years. I once asked this question of my engine colleagues at Land Rover and they said "10 years probably, if not more"

Neat antifreeze will last forever, even if the container has been opened and partially used...presumably you replaced the cap :p It will be fine to use when ever you want.

Saturday, 30 July 2016

ISA Account Facts

  • It is possible to hold multiple Cash ISA accounts but each of them has to be opened in different financial year
  • Interest earned (and added to the account) does not contribute to the annual allowance


Sunday, 18 October 2015

How to make Hudl faster

(1) Clear the cache partition (instructions)
(2) Settings -> Storage -> Cached Data -> clear the cache

Thursday, 27 August 2015

I am forgiving any bee that has ever and will ever stung me

Seriously, what does it have to happen in order people to realize how serious this problem is?!

Tuesday, 25 August 2015

Bournemouth and Jurassic Coast


1406 - The very first mention of La Bournemowthe in  Christchurch cartulary. Bournemowthe was purely a geographic reference to the uninhabited area around the mouth of the small river which, in turn, drained the heathland between the towns of Poole and Christchurch.

1810 - Captain in the Dorset Yeomanry Lewis Tregonwell and his wife visit Bourne during their holiday; they liked that area of heathland with nice sea views so much that they decided to build a house next to the mouth of the River Bourne (which runs through the Lower Gardens today). That was called The Mansion and was the first house in Bournemouth and it survives to this day as a wing of the Royal Exeter Hotel.

1831 -  A travel guide published in this year calls the place "Bourne Cliffe" or "Tregonwell's Bourne"

1832 - Lewis Tregonwell dies. Statue of Captain Lewis Tregonwell can be seen outside Bournemouth International Centre on Exeter Road.

1841 - The Spas of England, published in this year, mentions town as "Bourne"

1844 - Start of works on building St.Peter's church - the founding mother church of Bournemouth. 

1851 - Mary Shelley, author of Frankenstein, dies and is buried in the churchyard of  St.Peter's church

1856 - The first version of the Bournemouth Pier - just a wooden jetty

1870 - After getting a spa and railway connections, Bournemouth is recognized as town

1879 - St.Peter's church completed. Remains of Lewis Tregonwell are in its vault.

1881 - built Built as the Mont Dore Hotel, today Bournemouth Town Hall

1889Boscombe Pier opened

1893 - Bournemouth Symphony Orchestra formed (it is based in Poole nowadays)

1895 -  The Boscombe Grand Theatre opened (O2 Academy today)

1901 - East Cliff Hall completed. It was built by Merton Russell-Cotes, then the owner of the Royal Bath Hotel, as a birthday present for his wife Annie. It was built in the northeast section of his hotel's garden.

1902 - The Boscombe Grand Theatre made a concert hall and renamed to Boscombe Hippodrome

1908 - The Russell-Cotes Art Gallery & Museum established in East Cliff Hall

1911 -  Bournemouth Hebrew Congregation synagogue built

1929Pavilion Theatre opened

1960s -  Boscombe Hippodrome renamed to Starkers Royal Arcade Ballrooms, which was visited by acts such as Pink Floyd, Status Quo, Led Zeppelin, Thin Lizzy, Hawkwind, The Faces and David Bowie.

1973 - Tolkien dies in September at his home in Bournemouth

1982 - Starkers Royal Arcade Ballrooms renamed to Academy Nightclub

1984 - The Bournemouth International Centre (BIC) completed. It is a national conference and music venue.

2007 - In survey by First Direct, Bournemouth was found to be the happiest place in the UK, with 82% of people questioned saying they were happy with their lives

2009 - Academy Nightclub becomes O2 Academy

Hotel Miramar - writer J. R. R. Tolkien, spent 30 years taking holidays in Bournemouth, staying in the same room at this hotel

Poole Bay is a bay in the English Channel, on the coast of Dorset in southern England, which runs from the mouth of Poole Harbour in the west, to Hengistbury Head in the east.

Hengistbury Head - a narrow peninsula that forms the southern shore of Christchurch Harbour. It is a local nature reserve and the site of a Bronze Age settlement

Jurassic Coast

- 96 miles (155 km) of coastline designated a World Heritage Site


877 - The town is first mentioned in historical texts in the Anglo-Saxon Chronicle

- fishing and quarrying (Purbeck marble, Purbeck stone)

1833 -  Princess Victoria, later to become queen visits luxury hotel opened by MP William Morton Pitt in the early 19th century; The building was later renamed the Royal Victoria Hotel, now the building has been converted into flats and a bar and nightclub in the left and right wings respectively.

Old Harry Rocks
Peveril Point with National Coastwatch Institution Lookout
Durlston Country Park

The rest of Jurassic coast 

Lulworth Cove
Stair Hole


Thursday, 20 August 2015

Stop poaching now!

Some grim facts:

- since 2010, official figures show that on average almost 35000 elephants a year have been killed across Africa
- in the Selous Game Reserve in Tanzania, numbers have plummeted from as many as 55000 to just 13000 in four years
- kilogram of ivory is now worth more than a kilogram of gold
- some terrorist organizations kill elephants to help pay for the weapons it needs to conduct atrocities - Africa's elephants could soon be extinct
- animal that has existed for four million years could be gone in the wild in a few decades

(source: Evening Standard)

Giants Club: President lights the fire that puts Kenya at forefront of Africa’s battle against ivory poachers

It was discovered that chimpanzee meat was on sale in the Midlands as part of a black market in exotic meats. Chimp meat can fetch more than £20 per kilogram.
(Evening Standard, 25/06/2015)

Digital detoxing

Take a proper break — you’ll be much more productive if you do
(by ROHAN SILVA, Evening Standard,  Monday 3 August 2015)

...taking a proper break every once in a while helps you be more creative and clear-headed when you get back.’s a sign of wisdom, not weakness, to be able to switch off from work now and again.

In Tech City today, “digital detoxes” are increasingly popular, with technologists unplugging from digital devices to give their brains a rest.