I decided to get the car manual and solve this once and for all on engine oil. Page 127. API SL rated oil or higher.
For Ambient temperature up to 40 deg C.
SAE 10W30
For Ambient temperature up to 50 deg C.
SAE 10W40, 10W50, 15W40, 15W50,20W40, 20W50
Do NOT use 5w40, 5W50, 5W30, 5W20. These are for Ambient Temperature 20 deg and below
10W30 would be the best choice for Malaysian climate. Since Malaysian Ambient temperature is ~30 deg C, there is still a huge safety margin because 10W30 can withstand up to 40 deg C.
xW40 or xW50 is too thick and will reduce performance and increase fuel consumption and we do not have Ambient temperature of 50 deg C.
As for service interval, for severe (city stop-start and long idling) it is every 5000-km. Otherwise it is 10,000-km.
1st service is 1000-km.
To keep it simple, just remember, do not use anything starting with 5Wxxx. It must be either 10Wxxx or 15Wxxx or 20WxxxThis post has been edited by Optiplex330: Jun 9 2012, 05:34 PM