I'm following this debate with interest as I have a variety of vehicles with different needs, a D2 V70 with 5,000 miles, a Mini Cooper S with 50,000, a Fiat based motorhome with 30,000 but used intermittently, standing for a long time, and a 1971 Land Rover with an early turbo engine. So as you can guess I have a lot of different oils in my garage.
I take the point about thicker oils not necessarily giving better protection, the oil pump will have to work harder to push it around. But I am now wondering about this damned stop/start feature on my V70, I now realise that the oil will stop circulating and drain down when it stops, which can be every few minutes in traffic. Is the oil specially formulated to cater for this?
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