I use semi & fully synthetic oil change them every 3 - 4k kms, but of the time is semi. fully is damn expensive as my car need 5 L per oil change. If later add in oil cooler lagi more.

As I heard next month engine oil price will go up??.... susah...

gkl83,
yeap, but it depend on ppl view. if drive it normal don't rev it kau kau.. can go to 5k kms. just to make sure the engine run in tip top condition. And some new cars is going for 15k kms oil change ie BMW & Audi. it all depend on the engine spec.,

For my another car (kelisa) is 3 months or 5k kms.

Oil hv used: Royal Purple 10w30 & 10w40, Delo 400 15w40 & Shell Hilex (Semi) 15w50. Castrol 10w60. For now is using the shell 15w50 semi, seem hv good feel in the track day, anyway will see if it can last untill 4 or 5 k kms.

This post has been edited by blue.taxi: Apr 25 2007, 05:52 PM

but I hv a friend he cliam (don't how ture) for his conti's car he change engine oil every 15K km w/ semi, then later go to mineral oiland the car still run good untill now is ~ 300k km??!! hmmm.. may he drive so slow never rev the car...

but for my jap car I still prefer the 3 - 5k kms range.

but now for some new jap car like Toyota, Lexus & Honda will go for the 10k kms oil change. So I think there is no s sure oil change intervel for all cars.... it is more to the individual & the Enviroment Law of that countries. As used oil hv to recycle which cost money. As we can see most car for EU hv long oil change interval. Even the ATF is label as long life..??? which I don't so.