Just read your manual and this:
hello i did some reading and it seems like due to fuel economy reasons and cafe, manufacturers prescribe lighter oil requirements to slightly increase MPG. However tons of people say/think that 0w20 does not provide the same amount of protection as a 0w30 for example. my noob question is however...
bobistheoilguy.com
I would never ever run a 0W-20 in an engine not designed for that.
IF I
HAD to mix this oil in I'd probably get some 5W-40 to mix with
to get something 5W-30ish and HTHS above 3.0, perhaps 3.3 mPas.
.