The Proton Preve Turbo is quite a good and value for money vehicle if one is looking for sedan at its price range. After 4 months of ownership, with the mileage close to 10,000km now, rattling sound has been eliminated completely. I can say close to zero except for a *very minor* kruk kruk sound from the driver's seat when going over speed bumps. In my mind, the vehicle has passed with zero rattling sound in the cabin so far. As a matter of fact, the 3-month old Ford Focus Titanium now has more rattling sound than the Preve Turbo in the steering wheel when going over bad surfaced roads. There is no rattling sound from the steering wheel of the Preve Turbo.

The only disadvantage or weakness, for me, is the loud and harsh engine sound in the cabin during acceleration at all speed levels, and a slight lag when the pedal is depressed during acceleration. Due to this 0.5 seconds lag, the drivability during bumper to bumper traffic is a bit cumbersome. If you can live with these "shortcomings" then I would recommend the Preve Turbo as an excellent and value for money proposition with good ride and handling over most Japanese equivalents up to RM100k in price range.

Yes, I have tried Petronas Primax, Caltex Techron and BHP only. When the mileage is lower, say between 1,000km to 8,000km, Caltex seems to provide a more powerful acceleration compared to Petronas. BHP is also good but Caltex feels great. The car seems to be less energetic ie. less powerful acceleration, coupled by engine knocking with Petronas. With Caltex and BHP, more powerful acceleration and less knocking.

But know, with the mileage >8,000km, seems like the type of fuel is more or less similar. Little or no more knocking with all types of fuel, even Petronas Primax.

I didn't try RON97 before. Perhaps I will try sometime. Do you pump RON97 everytime, or you just tried RON97 just for several times before switching to RON95?

Yes, I agree that the engine sounds slightly more refined wtih more mileage. My car is about 8,700km now. Still 1,300km to go before the 10,000km service, and I expect the performance from the engine to be better, more refined and smoother acceleration.

May I ask where is the place for this "track day competition"? Is it a racing circuit, something like F1?

Okay, will try RON97 sometime just for the fun of it since there are now two experiences that confirm the Preve Turbo to have better performance in engine power and acceleration with RON97.

Hi ... anyone tried this ...

http://www.mudah.my/Air+Power+Zeta+Fuel+Sa...+2-21226051.htm

guys...want to ask, Preve DRL is not light up during the day, is it normal?
i thought that thing supposed to light up even if you don't turn on the light switch, correct?

mine only light up during switch turning