Bossko

an anyone tell me if Magnatec fully synth oil 5/35 is bad for a 02 STI ?

Cheers

brocksta

iTrader: (1)

From what ive read on here i wouldent use it mate better of with 10/40...or 15/50 to be on the safe side.

joz8968

iTrader: (13)

I think the weight is correct i.e. the New Age takes 5W-30 or 5W-40 (can you actually get a 35?!).

It's just that Magnatec isn't recommended for the Subaru EJ engine...

STI Mav

Yep 10w/40 on a newage should be OK, but 5w-40 would be better still. 15w/50 shouldn't be used on a newage - possibly on a classic with high milage.

dazdavies

iTrader: (22)

Nothing wrong with 15/50 in any engine.

STI Mav

Been told by more than 1 tuner it's too thick for the Newage Impreza's and can cause issues especially in the colder weather

joz8968

iTrader: (13)

These oil thread opinions will run and run and run and run and run and run and run and run and run and run and run and run and run and run and run and run and run and run and run and run and run and run and run and run and run and run and run and run and run and run and run and run and run and run and run and run and run and run and run and run and run and run....................

ALi-B

iTrader: (1)

That oil doesn't exist. Nor does that grade. (5/35). Magnatec is semi synthetic (although their 5w-30 grade does say on the bottle "Fully Synthetic Technology" - its actually still part synthetic )

It'll either be 5w-30, 10w-40 or 15w-40


Subaru do state that 5w-30 semi synthetic conforming to A1 spec is suitable for normal road use in a UK spec MY02 STi; This will be Magnatec 5w-30

However if you drive hard or modify, you may want to consider a different oil or do 6monthly/5K oil changes instead of the quoted 12month/10K intevals