Yes. If you Want to do that and able to withdraw anyrime then use promo FD. Earn more or less same with. But can withdraw anytime you need it.
More info on this page
https://forum.lowyat.net/topic/4154481

For me personally, I like to use amanah saham fixed price fund
https://forum.lowyat.net/topic/4801114

Avoid those saving plan/retirement plan/insurnace plan being sold to you by banks or insurnace agents as 50% of commision will enter their pocket and you are funding their holiday or next big house.