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Mixing Engine Oil

 
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Old May 17, 2009 | 12:55 PM
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italfatboy
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Default Mixing Engine Oil

Is it safe to mix different brands of Engine oil? A friend of mine has 2 quarts left of Valvoline 20W50 Motorcycle oil left, and 1 quart of Mobil 1 V-twin. Safe to mix it together??
 
Old May 17, 2009 | 12:57 PM
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Safe but not recommended unless you don't have much choice.
 
Old May 17, 2009 | 01:18 PM
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That's exactly what I told my buddy. I think it would be wise for him to use the rest of his oil for his primary.
 
Old May 17, 2009 | 10:58 PM
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Yes, it will mix but you will only get the additive package of the cheaper oil so only run it 3000 miles.
 
Old May 17, 2009 | 11:42 PM
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Agree, can mix but don't run too long.
 
 
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