HLB MACH for dining. Free AF with just 12 swipes per year, first year is free AF.
On another note, why AmBank Carz for petrol? You have to leave outstanding balance just to get that little cash back. Not worth for it at all. Try applying Maybank Ikhwan MasterCard and Visa Petronas instead, free AF. You just need to pump on Fridays-Sundays depending on which card. Head over to Ikhwan thread.

AmBank Carz only gives higher cash back if you don't pay full every month, you will be penalized with interest though.
Ikhwan cards are good for you, at least you can pump during weekends and last you few days during weekdays. Then, if you really want, UOB One Plat with AF though, first year is free. Citibank Cash Back also with AF but first year is free.
Or 2% CIMB Cash Rebate plat, no AF.

How about Maybank Ikhwan + AEON BiG Classic/Gold + CIMB CR? The first gives you 5% petrol cashback on Friday and Saturday. The second gives you 5% on Sunday only. The third gives you 2% cashback on any day. If you pump full tank on Sunday night and can survive until Friday, then you can easily get 5% for the entire month by timing your fuel ups. But if you fail to do so, at least you'll get 2% cashback from CIMB CR.

Maybank Ikhwan and CIMB CR has no annual fee. AEON BiG Classic/Gold does have an annual fee, but it can be automatically waivered with 12 swipes in a year.

Please multi-quote.
I already suggested Maybank Ikhwan Petronas which gives 8% on Saturdays and Sundays but only limited to Petronas.
SCB Gold Cash Back.

Citibank Cash Back.

Citibank Cash Back need member fee, yearly RM195.

HLB Wise with AF RM98.