Need an answer fast
 

i searched on google that it is ok to mix 5w-30 and 5w-20.

my r3 currently has 5w-20 in the engine, and my local walmart and h-e-b stores do not have 5w-20 in stock right now so i bought 5w-30 and my r3 is @ half on the dipstick so i need to add oil asap. is it ok to mix 30 and 20 together w/the rx8?

Yes

/thread

Every weight of oil (0w5 to 20w50) can mix with every other weight. Each type (dino vs synthetic) can mix together as well.

When they mix, the weights 'blend' between what is used.

good deal. thanks guys much appreciated

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You suck and don't deserve and RX8