Mixing mobil 1 15w50 / 0w40

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43,677
Location
'Stralia
A quite heavy 40 grade, 15.6cst, with an HTHS of 4.1 Close, but a little thicker than M1 High Mileage 10W40.
 

vorteXtreme759

Thread starter
Messages
48
Location
Florida
I really wanted 10w40 but I dont need the eXtra add pack that comes with mobil high mileage. How does castrol 10w40 compare in high temp turbocharger use?
 
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