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.
Added on April 17, 2011, 12:52 amQUOTE(kyheng @ Apr 17 2011, 01:16 AM)
Ok then, now I'm making some false ads, go buy your self a fully-syn oil and test in your car. After all, you will only lose rm1++ if I'm mislead you...
Still, I like people that have not much knowledge and trying to be a hero by simply insult others.
8 years ago I never tried fully-syn oil, so can't tell. But after overhaul I got the chance to test and this is the simple review which I would like to share among Wira owners.
bro maybe is something the words that u using... eg i ask about something about sound proof, i ask did is really ur car sound proof...
i think u can use sound proof, rather use the word sound reduction.
same like those ppl advertising sound proof mat, i think sound reduction mat.
bcoz i dont think u can really sound proof except u really seal kau2 the car interior just like toyota camry. that 1 i say is really sound proof..
This post has been edited by maxgenesis: Apr 17 2011, 12:52 AM