Quote:
Originally Posted by rennis
And what is the purpose of the lower viscosity rings? lower viscosity oil for the turbos? (thick oil is not good for turbos at start up, right?)
but the lower viscosity in the cylinders - how does that work? Is it blow-by?
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The low viscosity rings reduce friction which increases power and MPG but you do get some blow-by when cold. The turbos eat a bit of oil until they are up to temp and fully sealed up.