engine oil
 

i know this is a big debate but my 94 wrx is about due for an oil change so i was wondering what oil everyone else is using :confused:

10w40 semi synthetic

Tony:)

as above 10w40 semi synthetic been running mine on it for 5years now no probs.

If you were to ask Oilman, I'm sure he'd advise on 10W-40 or 15W-40... Or 10W-50 (or 15W-50) if you drive the car hard for extended periods.

Best to use fully synth, as it stays in grade - maintains its integrity - for longer. So only helps with things. Even if your engine has been run on a semi-synth for most of it's life, it's still better to use the best possible oil fully synth oils, as they have better heat dissipating properties as well.

All the way.:norty:

300v Motul 15w50, no problems at all with it. :notworthy

I used Mobil 1, pony found it smoked on start up.:freak3:

im runnin on 10w40 now but its only a cheap one we have at work so ???

Millers CFS, Silkolene Pro S or Motul 300V Competition are highly recommended and used by Scoob enthusiasts.

10W-40 Year Round

Hi,

I have the same question, only had my Scooby two months...does the model of Impreza determine oil type though? I was told 5w-30 should go in a blob-eye WRX by Suburu but finding one that meets all the regulations according to the manual i am having trouble with.
Was gonna get 5w-30 Castrol GTX Magnetix.
I only want to do an interim service between the 10k service intervals. Subura wont tell me what brand they use. grrr

Carlos

5W-30... or 5W-40 if you hoon for long periods.

Forget Castrol GTX - allegedly not suitable for the EJ flat-4.

Stick to Millers, Silkolene or Motul and you won't go wrong. Or go to Oilman's website and use his "Recommend me an oil" wizard for the options..........