Motor Oil. Most M types plus some manufacturing unit effectiveness selections include an engine oil cooler. In more mature styles it's a straightforward radiator style making use of oil:air convection. But in other styles coolant is employed by using a warmth exchanger, just like the transmission oil method above. Turbochargers. https://germancarmechanicnearme49371.blog2freedom.com/27252446/the-definitive-guide-to-types-of-coolant-for-bmw