GC 0w30 +M1 15w50

[dbf]

I have 4 quarts of GC 0w30 and 3 quarts M1 15w50 I would like to mix. Will these two be compatible or am I heading for trouble with this idea? Thank you.

 

[JohnBrowning]

We have yet to see any type of bad report due to mixing grades or brands so far! So I am going to go with history and say you will be just fine! All of todays oils are compatable with each other!

 

[Mr Nice]

No problems mixing oils.

I have mixed (2 Qts of each) 5w40 Mobil Truck & SUV , with 10w30 Mobil 1 and 0w30 CG