hi guys,just drop by for a while. Erm, iinm, APS is accelerated pedal position sensor or throttle position sensor which related to drive by wire.

About engine oil, iinm, prtn recommend 10w 30 mean that sae is atleast sae 30 rating. Whether 5w 30, 0w 30,it is the same sae 30. The diff is the winter grade. That why its call multigrade oil.

However, for newer car, atleast use 10w grade, avoid any more than 10w if can cause oil easily flow to the engine part durind cold start. Sae 30 is suitable to our climate, and using sae 40(10w 40, 5w 40, 0w 40) or sae 60 (10w 60), wont harm ur engine generally, but it will effect ur fc a bit. 10w 60 is suitable for high powered engine.

Unless u r using old car that consume engine oil, so, 20w 50 is suitable coz thicker oil, less consumable. When someone pointed the graph on the manual, just realise mistakes done on the diagram on the lower side.

Just my advise, there are diff between mineral, semi syn or fully syn, eventhough same rating is the additives added, thats why even mineral can have same sae rating as semi syn like 10w 30. The problem is the additives added wont last long in mineral oil compare to semi syn and overtime, it can change its sae rating coz when heated, the oil become thinner, and when cold become thicker So, overtime, like mineral or semi 10w 30, may change to 15w 20. But semi will last longer its multigrade rating. N fully will last longer than semi.

So, in the end, its up to end user. As long as following the advise as mentioned sae 10w 30@ api sl @ higher, then, it is the safe bet on warranty part. The most important part, check the receipt when printed whether using semi can actually prolong the service interval to 10k@6 months whichever come 1st. If stated like that, then, semi is the best bet coz save up money.

Personally will choose 5w 30 fully for newer engine coz still same sae rating as 10w 30, easier to flow to the engine during cold start, and the price is the same as any fully rated 5w 40, and give a bit better fc, but just a a bit, but, what to loose :-).

This is what ive being told. Just comeback from long holidays. Now back to work. Sorry not being too much help nowadays, holidays n busy. Bye

10w 30 is almost all major co recommended for modern engine. U still can use 5w 30@ even 0w 30 coz both are sae 30 rating. The 1st is normally refer to winter rating@ at common known as how thick@thin the oil during cold start. The upper number on the other hand how thick@thin the oil can be when it heated up to normal operating temperature or even under extreme condition. Unless u r kaki pecut, sae 30 rating is suffice enough, unless u always red line kind of guy, then sae 40, 50 or even 60 is better. For normal engine n kaki pecut, sae 40 is enough. Unles high power engine like vw gti, evo,imprezza, ferrari n etc need beyond that, that is if its driven hard every day. If using higher sae, the bad things is that it is thicker, which means heavier. For cfe@iafm+, isnt recommended coz it will effect fc n performance.

But the first number@winter rating shud be atleast 10w. If using lower than that, its ok, but higher than that, isnt recommended coz thicker oil during cold start will cause hard to start, engine need to work hard, n for vvt equip engine, the oil takes time to bath the vvt component, which can lead to unwanted sound coming from vvt during cold start. The lower number cons is that its expansive than 10w, n for older engine that already eat the engine oil, u need regular top up.

So, its up to you, but since u can use cheaper 10w 30, why need to spend more? But if u need to use fully syn oil, make sure its around 10w 30, 5w 30@even 0w30 which is really expensive. For petronas, that is syntium 5000. U can get 5w30 from petronas in form of syntium 3000, n its also has 5w40 for the same range. 0w 40 also available for syntuum 5000.

For me, personally, i used 5w30 fs oil for one of my car, n 10w30 semi for another one.