1. XM2 is a eco tyre already. other choices like, BS EP200, Yoko AE01
2. or you can take the Hankook Kinergy EX, the factory tyre by perodua for Axia.  i believe this is part of the component that helps Axia to achieve EEV status (besides their ULTRA high manufacture recommended tyre pressure at 37 psi for a seg A car lols).  Axia's tyre size is same as Myvi's aka 175/65R14

1. XM2 is a eco tyre already. other choices like, BS EP200, Yoko AE01
2. or you can take the Hankook Kinergy EX, the factory tyre by perodua for Axia.  i believe this is part of the component that helps Axia to achieve EEV status (besides their ULTRA high manufacture recommended tyre pressure at 37 psi for a seg A car lols).  Axia's tyre size is same as Myvi's aka 175/65R14

Got silverstone synergy m3 when i got my axia. Rolling noise noticably loud compared to ecopia 200.

Got silverstone synergy m3 when i got my axia. Rolling noise noticably loud compared to ecopia 200.

But changed to EP200 on rear tyres, so far no complaint except I found that EP200 is less contact surface on the road even same tyre dimension, which makes less grip on the dry. But wet grip is on par with A-drive, at least, on rear tyres.

WHAT??? Axia is supposed to come with Hankook Kinergy EX!  did the perodua dealer keep the Kinergy EX and resell later, and give you a lousy tyre??
how did you know what it has less contact surface? how did you measure?
well, that actually sounds logically correct.  you found it has less contact surface, meaning its rigidity (in maintaining a round shape under the car's weight) is better than yoko A-Drive, this means less Rolling Resistance, which means better FC.  Which, its what an eco tyre supposed to be.

I drive Vios 2005. So what's the best eco tyre for size 185/55r15? Plan to change 4 pcs.

WHAT??? Axia is supposed to come with Hankook Kinergy EX!  did the perodua dealer keep the Kinergy EX and resell later, and give you a lousy tyre??
how did you know what it has less contact surface? how did you measure?
well, that actually sounds logically correct.  you found it has less contact surface, meaning its rigidity (in maintaining a round shape under the car's weight) is better than yoko A-Drive, this means less Rolling Resistance, which means better FC.  Which, its what an eco tyre supposed to be.

Dont think they kept it lol. Prolly follow batch.

Got silverstone synergy m3 when i got my axia. Rolling noise noticably loud compared to ecopia 200.

Oh i compared the tyre marks when I drove it inside my house. My car porch is white color.    So when I drove in, there is a tyre marks. So I make a comparison based on EP200 and A-Drive. Found out that the A-Drive is wider than EP200. 
But luckily the wet grip is quite good (no hydroplanning). So still safe to use and not like Synergy M3.

You are right that EP200 is much better rolling resistance than A-Drive. I'm surprised that even with just 2 tyres of EP200, it like to roll quite further away after lift-off (remove my foot from accelerator pedal) compared previously i used 4 tyres of A-Drive. 

Previous review of the Yokohama C drive 2 on the same vehicle:
https://forum.lowyat.net/index.php?showtopi...post&p=48254806

My quick review of the Yokohama Bluearth AE01:
- Really comfortable tires, even more comfort/softer than the C Drive 2 despite pumping about additional 2 psi more (35front 33 rear) to further take advantage of the lower rolling resistance.

- even quieter than the c drive 2! can barely hear anything from the wheels unless road conditions are totally horrible (potholes/unpaved roads etc)
Cabin/wind noise are more apparent compared to current tire noise.

- Very low rolling resistance as per advertised: Merely putting in D is more than enough to creep through most traffic jams with any throttle input required and that alone is a guaranteed fuel save.
If you're not in a jam, this tire has no issue cruising without throttle input once you bring it up to optimal cruising speed. Say 80kph? It will maintain that speed even without any throttle input for at least 5-10 seconds or even more depending on road conditions/gradient.

- It's as if the tires are pillows and your car is riding on it.

- Very light weight tire, can be practically lifted with a finger for 195/60/15 size.
The tires are also VERY soft and if you press it you can almost deform the tire entirely

- What i don't like is the steering response, any steering input will have some sort of delay. Perhaps i am too spoiled with the AD08R with laser precision steering input/response and comparatively between AE01 vs AD08R, it's like an exact polar opposite.

- Tire flexing is also very apparent when you do very hard braking/cornering. Definitely have to take it easy with this tire.

- wet performance are decent, handles quite firmly over mrr2 water puddle at 100-120kph.
slightly more unnerving compared to c drive 2 despite being almost worn down, would advise caution as you wear the tire further.

*summary*
pros:
- low NVH, comfortable
- low rolling resistance
- non directional/asymmetric = ease of rotation.

cons:
- overall performance be it dry/wet
- bad steering response
- lots of tire flex
- pricing may be on the higher side compared to better performance tires, or even same LRR/eco category tires.
main competitor should be against the bridgestone ecopia ep200 and michelin XM2 as these 2 brands tend to price their products at a premium as well.