SL_WRX

Been lots of threads on oil recently, but thought I would share what I have found.

My Subaru dealer just completed 1000 mile service on my 04 STI - and have used Shell Helix Plus 10w-40 semi-synth.

If you go onto the Castrol website for Subaru Sti 01 onwards it recommends Magnatec 5w-30 !!

I believe it is best to have a semi-synth for the first 10k ish so I am happy with Shell Helix and will change to proper full synth at next service.

Markyboy uk

I see you've changed to an STI now Do you think you'll get this one remapped?

Mark

oilman

iTrader: (9)

That's indeed correct, 5w-30 or 5w-40 is recommended once run in.

Oh no not another oil thread

Cheers
Simon

SL_WRX

Hi Mark,

Good to hear from you.

Yep - bit the bullet and went for an STI. Have only just run it in, so havent had chance to get used to its normal performance yet, but I am sure it wont be long until I contemplate an upgrade.

Markyboy uk

Or maybe just change to a WR1

Dark Blue Mark

Magnatec is ok, but I wouldn't use it on the grounds you can get a quality fully synth for not much more £. Certainly wouldn't use it on a modded car either.

You are probably right in your approach, and change to a Motul or Castrol RS 10w 50 or similar on the next one. Do some searching.

MB

oilman

iTrader: (9)

Totally agree, look at ester based oils like Motul 300V or Silkolene PRO, the difference is not huge but the quality is.

Cheers
Simon

s70rjw

iTrader: (2)

My local Motor Factors sell Helix Plus for £10.80 for 5 litres. What did Subaru charge? I agree with your dcision to change to fully synthetic after running in

oilman

iTrader: (9)

That is a good price but bear in mind it's a hydrocracked petroleum oil, not a proper synthetic and that's why it's cheap.

Cheers
Simon