I realize that my 'oren' got some unpleasant issue. Engine vibrates due to low RPM about 600/700 RPM when air-cond kicks in. So far I am still investigate this issue closely.

It may be due to the :

1. Vacuum host that connects to the carb or
2. Belting issue or
3. Air cond compressor pulley or
4. Spark plug or
5. Distributor or etc etc...

1. Battery

I got meeting at Oldtown Kinrara yesterday. While I was starting my 'oren', it won't start. Then I knew it was the battery. Since I bought my 'oren' on January 2009, this is the first battery change. Its been 2 years plus now for that dry cell. And I already knew that its time for me to replace it. Last two weeks, I bought a new battery (dry cell) and just stand by it in my car.

This time I am using GP Nippon Maintenance Free Car Battery NS70.

2. Engine Oil + Oil Filter

Last time I change my engine oil + oil filter is in Jan 2011. And because of I am using semi-syn, I planned to stretched the mileage up to 8,000 KM for the next service. Its not the time yet. I have several mileage to go.

3. The rest, everything is still in good condition.