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hi got 03 wrx and have beeb useing shell opmax oil seams ok just wondering if i should change any ideas or surgestions thx

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I use Castrol Edge 10W/60 on my hawkeye with 364 bhp - this may be considered to be a bit thin, but any Fully Synthetic Oil changed frequently will do you fine - Don't bother with a Semi Synthetic.

Edited by roger364

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SAE60 is too thick for any Subaru, SAE40 or SAE50 are ideal depending on state of tune and use.

For the OP, on an 03 model with basic mods and normal use/fast road I would look at a good 5w-40 synthetic for all year round use. If you plan to mod the car further and say use on track etc then 10w-50 or 5w-50.

Cheers

Guy

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Oilman,

Some good advice there. You might remember we've publish a couple of your oil faqs as Scoobypedia articles for the SIDC (see below).

http://www.scoobypedia.co.uk/index.php/Knowledge/OilLabelling

http://www.scoobypedia.co.uk/index.php/Knowledge/GearOilFaq

I was wondering if you had any other generic recommendations for a potential 'what oil should I use article' covering classics to current impeza's?

Edited by crispyduck

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Oilman,

Some good advice there. You might remember we've publish a couple of your oil faqs as Scoobypedia articles for the SIDC (see below).

http://www.scoobypedia.co.uk/index.php/Knowledge/OilLabelling

http://www.scoobypedia.co.uk/index.php/Knowledge/GearOilFaq

I was wondering if you had any other generic recommendations for a potential 'what oil should I use article' covering classics to current impeza's?

It would be nice to be able to put together a stock article, but to do a nice one takes a fair bit of time. Heres a brief one

Classics Use a 5w-40 or 10w-40 if standard/lightly modded or 10w-50 if heavily modded or tracked.

Newage Use a 5w-40 on most of them, only need to go for a 10w-50 if the car is heavily modded and tracked.

Gearboxes In normal gearboxes, a good 75w-90 is ideal, but if it has a DCCD unit, they can be very fussy, I'd only use the Motul Gear 300 or Millers CRX NT in those.

Diff A good 75w-90 GL5, doesn't need to be limited slip specific oil, just make sure it's GL5.

Cheers

Tim

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If it is just road use then 10w-40 or 5w-40 synthetic as an upgrade, if used fairly hard then go for a 10w-50.

Cheers

Guy

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SAE60 is too thick for any Subaru, SAE40 or SAE50 are ideal depending on state of tune and use.

For the OP, on an 03 model with basic mods and normal use/fast road I would look at a good 5w-40 synthetic for all year round use. If you plan to mod the car further and say use on track etc then 10w-50 or 5w-50.

Cheers

Guy

Hmm, it seems there are a lot of different opinions on the oil grade, which makes things a little confusing :unsure:

I have just had my 03 wrx serviced by a Subaru 'specialist; and on their recommendation they used Castrol Edge 10W/60.

Do you think this is too thick?

What would be the effect?

Car was previously running Castrol Magnatec 10W-40.

Thanks!

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It would be nice to be able to put together a stock article, but to do a nice one takes a fair bit of time. Heres a brief one

Classics Use a 5w-40 or 10w-40 if standard/lightly modded or 10w-50 if heavily modded or tracked.

Newage Use a 5w-40 on most of them, only need to go for a 10w-50 if the car is heavily modded and tracked.

Gearboxes In normal gearboxes, a good 75w-90 is ideal, but if it has a DCCD unit, they can be very fussy, I'd only use the Motul Gear 300 or Millers CRX NT in those.

Diff A good 75w-90 GL5, doesn't need to be limited slip specific oil, just make sure it's GL5.

Tim,

Understandable mate. The above though is good solid advice and will answer most peoples questions IMHO.

Thanks,

-Steve.

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Hmm, it seems there are a lot of different opinions on the oil grade, which makes things a little confusing :unsure:

I have just had my 03 wrx serviced by a Subaru 'specialist; and on their recommendation they used Castrol Edge 10W/60.

Do you think this is too thick?

What would be the effect?

Car was previously running Castrol Magnatec 10W-40.

Thanks!

Hi

Yes, it's too thick. The oil won't get hot enough to flow properly, meaning there is localised high pressure (leading to wear), reduced oil flow and less heat transfer. Is your car heavily modified and tracked regularly? If it's under about 350bhp and used on the road mainly, 5w-40 is the way to go. Over 350bhp, perhaps a 10w-50 is needed.

A lot of Subaru specialists seem to forget that there are oils other than 10w-40 semi synthetic and 10w-60 synthetic.

Cheers

Tim

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Tim,

Understandable mate. The above though is good solid advice and will answer most peoples questions IMHO.

Thanks,

-Steve.

Glad it's okay :)

Cheers

Tim

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Hi

Yes, it's too thick. The oil won't get hot enough to flow properly, meaning there is localised high pressure (leading to wear), reduced oil flow and less heat transfer. Is your car heavily modified and tracked regularly? If it's under about 350bhp and used on the road mainly, 5w-40 is the way to go. Over 350bhp, perhaps a 10w-50 is needed.

A lot of Subaru specialists seem to forget that there are oils other than 10w-40 semi synthetic and 10w-60 synthetic.

Cheers

Tim

That does not sound good with excessive wear, not quite the idea of a regular oil change. :mad:

The car is not modified at all and is a standard UK WRX, sounds like I need to get the oil changed again which is a pain as I have just had it done.

There must be quite a few cars running on 10w-60.

Cheers

Edited by shwrx

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There are many running SAE60 when they dont need to. As it is in there get your moneys worth from it as it will be fine short term. However next oil change switch to a more suitable grade.

Cheers

Guy

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