I would say as long as you put oil back in is all that matters.

For instance, it shouldn't matter much if you put in some chevron oil of the same weight as your oil.

I would just change it back to my normal brand completely after I got back.

Better than driving it without oil.

Alon

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'92 300CE - Sold
2004 C240 - 744 - C7 Wheels - Android Radio
2002 C320 - 816 - Sport Wagon