QUOTE(maxgenesis @ Apr 17 2011, 12:48 AM)
this my personal opinion...
the older the car is better to use mineral or much higher viscosity because the higher the viscosity the much 'thicker' thus it protects more ur engine part. but the higher viscosity, higher FC due to its thickness. if u take car like, i using cycle method which is mineral -> semi -> full syn den cycle again thus i feel d difference everything i change. OR if u really love ur car, use semi n fully but change it every 5k. dont wait till 8k or 10k. like my fren using 5w30 for his nissan sentra, he change everytime 5k or less den tht aft he check the dip stick. so my conclusion fully is much less FC comparing semi den semi less FC comparing mineral. also careful of imitation, maybe u buy a imitation den u get poor result comparing ppl who using same as u. my choice of brand elf, brahdal, motul, Q8, castrol, addinol and royal purple
brand also got effect with same viscosity, eg i cannot use castrol full syn 0w30 but i can use brahdal 5w30, same viscosity 30 but why cant use, no idea maybe bcoz different company different additive..
for spark plug also got effect but i think is bcoz is spark power, to burn the petrol. for me it got effect bcoz on both power and less FC. i think bcoz the fuel burn properlly kua.
petrol, different company different additive so which is much more FC is also effect the age of the car n how u take care car eg wut engine oil u using, wut spark plug, spark plug cable, ATF, air filter, oil filter and etc... i still like esso ron95 comparing other company bcoz it really save FC. my full tank rm 70 can go up to max 480...
in the end, u decide wut is best for ur car.
Well, I stick to ELF or BHP just because I know the distributor and I got a very good price for this fully-syn.....
The visco ratings most of the time are not that accurate, they shall publish the visco after the engine were heated up, say 90°C. At ambient temperature, every oil can get 30 does not means that at 90°C all still the same.
I choose Bosch Super4 all the time not just because it can last longer of 50-60kkm(filled with carbon and still perform like a new plug), cost me rm56. If were to use those original plugs, rm2+ if not mistaken, it can only last 10-15kkm. Compare the same mileage of 60kkm, I saved rm4+ on Super4.....
QUOTE(Rascal Stitch @ Apr 17 2011, 01:49 AM)
tis 1 i totally agreed ~
rather than many ppl din't realise tat but put lower viscosity in old 4G9series will actually kill d engine slowly~
cuz i've paid a very good lesson from it but i remembered sum1 used to said work for/in proton claim tat more than 10yrs can use fully like 5w40/3w30 or 10w30 wit no prob at all

Well, at least pour 1 time just to test power... And Mobil1 fully-syn even mad, said can last you for 25kkm before change....
QUOTE(Rascal Stitch @ Apr 17 2011, 02:05 AM)
yes,i'm waiting for it to run i at 1.5k km 1st b4 putting it good engine to it~
time for smoother rev n safe sum fc ~

1500km only change? I change at 1000km the oil are like it is been used for 5000km....