Yup you are correct mine is supercharged so premium always.
Question about warming up the car in winter
- Thread starter boostedtsiawd
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Originally Posted By: boostedtsiawd
Because mine is supercharged.
Both my vehicles are forced induction, the Caprice with the L67 3.8, and the Nissan a ZD30 turbodiesel.
Both warm the coolant significantly quicker if I drive to the edge of town with the Caprice in "2" rather than drive, and the Nissan in third gear (manual), holding the revs around 2,500RPM.
Here's a trend from a paper with a couple of different oils, frictional losses at 60C oil temperatures versus RPM.
Blue line, reference is about 3hp in friction at 2,500RPM versus just under 1-1/2 at a fast idle.
2,500RPM will provide (obviously) twice as much heat through viscous drag as sitting at idle...i.e. better warmup.
Because mine is supercharged.
Both my vehicles are forced induction, the Caprice with the L67 3.8, and the Nissan a ZD30 turbodiesel.
Both warm the coolant significantly quicker if I drive to the edge of town with the Caprice in "2" rather than drive, and the Nissan in third gear (manual), holding the revs around 2,500RPM.
Here's a trend from a paper with a couple of different oils, frictional losses at 60C oil temperatures versus RPM.
Blue line, reference is about 3hp in friction at 2,500RPM versus just under 1-1/2 at a fast idle.
2,500RPM will provide (obviously) twice as much heat through viscous drag as sitting at idle...i.e. better warmup.
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