Mixing Weights

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34,373
Location
NJ
Could I mix a quart of 5w-30 Amsoil with 3qts of 0w-30? I have left over 5w-30 that I could use with the 0w-30 i have. I wasnt sure if you could mix weights. The series 2000 formula is different too so i'm not sure if it is ok? thanks
 

Patman

Staff member
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22,011
Location
Guelph, Ontario
If you mix the different formulas like that I wouldn't recommend doing extended intervals though, as the additives might clash. If both viscosities were the same formula you'd be fine though.
 
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