QUOTE(ah_ken @ Aug 10 2011, 01:49 PM)
erm.. so my old car now used 20w50, so old engine should use x/50 thicker?
before the 0w / 10w/ 20w is cold start? what is the different??
If i bring to other service instead of proton SC, also ok right??
already on 50, use back 50 lor. About the thickest oil for normal car...unless you use those racing/high performance car oil xw/60....but better not lar....
0w/10w/20w is a rating to indicate that the oil performs the same level of oil thickness during cold or hot. 0w is for the coldest, 10w less cold, 20w lagi less cold...somthing like that....for example 10W/40 will means the oil performs with a level of viscocity based on SAE40 ratings whether in hot or cold(10W).....W means winter, you can google for more info.
Basically, it's all in the -ve Celcius range. Malaysia don't have winter, so it don't matter to us. Our coldest probably in Genting...what...17C ?? Doesn't matter....won't reach negative anyway...unless 2012 coming, which you won't be worry about your car...

Added on August 10, 2011, 2:02 pmQUOTE(miuk @ Aug 10 2011, 01:59 PM)
Actually you can watch out for those offers in hypermarkets for cheap oil. The last time managed to get Mobil 1 for rm140 at tesco. Even last weekend I asked a spare parts shop, shell helix ultra going for rm160 only, versus the rm200 plus they charge at service centers. Feels damn rip off.
Please don't buy oil at outside workshop....there has been many cases of fake oil going on. Only buy from Petrol Stations or official SC. You don't want to kill your car by being cheapskate.
As for Tesco oil, i believe somebody discuss before, the ratings might be a bit different than similar local brands.
This post has been edited by Matrix: Aug 10 2011, 02:02 PM