Monday, Feb 15, 2021 at 14:51
Warrie,
If you value your engine I would not be buying on price, cheaper oils are marketed frequently so to get volume sales. Volume sales should happen naturally because it is good oil, not cheaper, flogged as pretty decent. Magnatec means what exactly? great claim but is it real? Don't confuse that with anything MAGNETIC, please!
The comparison with fuel grade at lower temps is not to be confused with oils. Oils do thicken, ie, higher viscosity, but fuel has wax elements in the particles and is unlike engine oil. Yes fuel will WAX when very cold and cold altitude diesel has a thinner for cold use. Don't try and run it in hot climates and try to use it before warmed ambient is experienced.
Good quality oils and Synthetic oils seem to seal rings better, so less blowby and vented gasses with oil mist to be dragged in through the EGR system. So, overall oil use/burning will be less.
Just because it is $5 a litre doesn't mean it is the best for your engine. Always be discerning with any Super cheap or motor house oil offerings. It is just that our society have become used to buying, lulled into buying, from those
places and a degree of advantage is exercised by those
places.
Assess your engine internals and see it it is CLEAN inside the filler area and as far as you can see with an LED torch. If changing the filter and you see residue on the surface of the sealing area, ie thin film of discolouration, then the oil you are using isn't keeping the internals clean. That is a most important criteria. Most oils from normal
places may not perform
well. You should be able to se the dipstick through the oil on it after 5000km of use, if not it isn't sealing
well or engine is tired.
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