Discussion
InitialDave said:
100 5 mile journeys or 5 100 mile journeys? Big difference.
It depends how expensive the oil and filter is. I have cars like that, but the consumables are so cheap I can do it about annually regardless.
When I do drive it, it's for long enough to get the engine and gearbox oil up to temperature so 30-50 miles. It depends how expensive the oil and filter is. I have cars like that, but the consumables are so cheap I can do it about annually regardless.
https://www.youtube.com/watch?v=T-yt5a1cWd4
Interesting and well researched feature I thought.
In summary over a year is fine with good oil as long as it gets to full temperature more often than not when used.
Interesting and well researched feature I thought.
In summary over a year is fine with good oil as long as it gets to full temperature more often than not when used.
wormus said:
InitialDave said:
100 5 mile journeys or 5 100 mile journeys? Big difference.
It depends how expensive the oil and filter is. I have cars like that, but the consumables are so cheap I can do it about annually regardless.
When I do drive it, it's for long enough to get the engine and gearbox oil up to temperature so 30-50 miles. It depends how expensive the oil and filter is. I have cars like that, but the consumables are so cheap I can do it about annually regardless.
Essentially, do not start the engine unless it’s for a drive, and one that will ensure full operating temp. All this starting a car to ‘keep it running’ once a month is nonsense and what does the most harm to oils. An engine will happily sit for months on end and start at the flick of the key with a charged battery.
Oil doesn’t ‘go off’, it sits in the ground for millions of years before going in to the bottle.
If you get the oil up to temperature every time you drive it, 5-8k miles is nothing. If you idle it for 5 minutes on the driveway you can degrade the oil in <1k miles.
The condensation that forms in the crankcase is what destroys the oil in occasional-use vehicles by reacting with P. In the oils additive package to form phosphoric acid - one measure of an oils ability to neutralise this acid is TBN (total bade number) - by getting it hot you burn off the condensed water and the rate at which the oil degrades is significantly reduced.
If you want concrete proof of all measurable variables then take a sample and send it to Millers for analysis.
If you get the oil up to temperature every time you drive it, 5-8k miles is nothing. If you idle it for 5 minutes on the driveway you can degrade the oil in <1k miles.
The condensation that forms in the crankcase is what destroys the oil in occasional-use vehicles by reacting with P. In the oils additive package to form phosphoric acid - one measure of an oils ability to neutralise this acid is TBN (total bade number) - by getting it hot you burn off the condensed water and the rate at which the oil degrades is significantly reduced.
If you want concrete proof of all measurable variables then take a sample and send it to Millers for analysis.
If you really want to know, you could run an experiment, by periodically sending a sample off to an oil lab for testing. Do it once at 12 months, if it comes back ok, do it again every 6 month's until they say it's not fit for purpose. Something like this maybe https://oilsampling.co.uk/Oil-Sampling-Kit
Olas said:
Oil doesn’t ‘go off’, it sits in the ground for millions of years before going in to the bottle.
If you get the oil up to temperature every time you drive it, 5-8k miles is nothing. If you idle it for 5 minutes on the driveway you can degrade the oil in <1k miles.
The condensation that forms in the crankcase is what destroys the oil in occasional-use vehicles by reacting with P. In the oils additive package to form phosphoric acid - one measure of an oils ability to neutralise this acid is TBN (total bade number) - by getting it hot you burn off the condensed water and the rate at which the oil degrades is significantly reduced.
If you want concrete proof of all measurable variables then take a sample and send it to Millers for analysis.
You do realise most car oil doesn't BN come out the ground nowadays. Virtually anything most 2000 needs at least semi synthIf you get the oil up to temperature every time you drive it, 5-8k miles is nothing. If you idle it for 5 minutes on the driveway you can degrade the oil in <1k miles.
The condensation that forms in the crankcase is what destroys the oil in occasional-use vehicles by reacting with P. In the oils additive package to form phosphoric acid - one measure of an oils ability to neutralise this acid is TBN (total bade number) - by getting it hot you burn off the condensed water and the rate at which the oil degrades is significantly reduced.
If you want concrete proof of all measurable variables then take a sample and send it to Millers for analysis.
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