Engine oil Question?

[furiouswilly]

i got my car service at Kmart using semi- synthetic Castrol oil, so is that 10- 40w? and i have a EK 1 , is mobil 1 5-50w suit for my car? (becoz they are on special at super cheap now for $49.99) or Honda FEO (are this synthetic oil? ), which one is better for my car??

[incoming]

if ur car isnt heavily modded then i'd stick to honda FEO

[aaronng]

Stock is 10w-30 which is what Honda FEO is. You can go 1 grade up, which is 10w-40. And that is as high as you should go. Once your car gets older and blows blue smoke out the exhaust, then you can go Mobil1 5w-50. If your engine is still good and you use too thick an oil, there will be insufficient protection at operating temperature. It won't fail straight away, but it will start to burn oil earlier in the long run.

[furiouswilly]

but is there any 10w-40 synthetic oil??

[aaronng]

Shell Helix Ultra which is 5w-40. Castrol has Formula R 0w-40. 0w and 5w are the same viscosity. Only difference is that 0w stays pourable down to lower temperatures than 5w. The Formula R 5w-30 that Castrol sells for almost 1/2 price of the 0w-40 is a hydrocracked synthetic. The true synthetics that we've heard about for years are the PAO (polyalphaolefins) synthetics (Shell Helix Ultra, Mobil 1, Castrol Formula R 0w-40). The latest one is the ester-based synthetic that Motul makes under the range of 300V in 5w-30, 5w-40 and 10w-40.

Hondas can run 5w-30 (standard for USA), 10w-30 (standard for Aus), 5w-40 and 10w-40 for everyday use on a stock to lightly modded engine.

[michael_antoi]

is this applicable for an eg d15b (Vtec) also?

i've purchased 10w-40. starting to wonder if this was the right choice now.

[aaronng]

Oops, didn't follow up this thread. Yes, you can use 10w-40. The oil viscosities that you can use in your engine are also listed in the manual.

[johnn]

Where can we get Honda FEO engine oil from?? I've beening looking around for some..

[aaronng]

Get it from the Honda dealer (spare parts section). It's about $27 for 5 litres.

[Limbo]

castrol R has a 5-30w which is quite good also.
Mobile 1 also has 0-30w which is $80 for 5 litres
or Motul is good also.

Normal driving just use honda FEO oil. Its only semi synthic though

[b16a2]

Mans honestly ill stick to my honda feo ur gonna do a service every 5000KM ryte?

[aaronng]

The FEO that Honda Australia sells is mineral (made by Castrol). In SEAsia, the FEO there is semi-synthetic.

If every 5000km, then FEO should be good. In that time, there would not be that much build up of sludge/deposits/gumming. If you go for a track day, remember to change your oil after as soon as possible.

In the end, it is your money, and some prefer to have synthetic in their cars. All of them will protect sufficiently, as long as you use the correct viscosity and service regularly.