Hi guys, My Impreza WRX 2003 was very low on oil today so I went to Halfords to get some Castrol Edge 5w/40, I was in such a rush today that I picked the bottle behind the one I was looking at only to relise after putting it in the car its Castrol Edge 0w/40!!! I have only driven the car 4 miles today, but is this Oil OK or should I drain it out if its not going to give the protection i need!
Cars done 100,000 milee.
I did a good search and some one said I could spin a bearing with this oil!??

Was my fault, I should ave checked the bottle when i picked it up!
Thanks

 

Get the correct oil and a fresh filter and change it to make sure, an engine rebuild is not really a nice thing to have to fork out on to start your new year off.
Jay

 

Some oil is better than none!

I would just change it at the next service, it's not going to do any harm.

 

hi ,
how much 0w40 did you add? does the engine have 5w40 castrol in it normally ?

 

You are right Jay!
Is Castrol Edge 5w/40 OK to use? or should I use a better one.

 

The previous owner said it had 5w40 in it
Added at least 2.5 litres

 

10w-40

 

Doubt it will kill it, but if it was mine for the sake of 30-40 quid a would drop the lot and refill with fresh oil.
Jay

 

ah 2.5L in that case as Jay said "change it to be safe" 5w40 is ok but as the car appears to have an oil leak or has been burning it? i personally would move to an 10w40 synthetic.

 

Part Synthetic!? 10w/40?

 

And 2.5 litres is mental it must have been mega low as min to max is about a litre so could have destroyed your engine mate, change it and check it more often or it will end up costing thousands

 

10w40 fully synthetic as a 5w40 a bit thin for 100k mile car

 

Halfords dont do a 10w40 fully synthetic only Part Syn so might not be able to do it tomorrow

 

Go to another motor factors halfords are over priced anyway mate

 

Wander why it was so low on oil, oil leak!
Have you checked mate.

 

I have looked under it mate and from the top and cant see any oil, will double check again

Got a halfords trade card plus not alot of MFactors are open on a sunday

 

A semi synthetic will be fine then mate, better than whats in it the now, when did u last check it as 2.5 litres is a huge amount, i use less than a 1/4 a litre over 5000 miles with forged pistons so that sounds a lot

 

As above i,d stay using fully synthetic,surely somewhere local does 10w40 syn near you?
Which part of London are you from? someone on here may be able to recommend a local place.

 

Bromley, London Way.

I have only had the car a week and noticed the oil dipstick was dry when checking it today

 

Subaru manual says 5w/30 for their cars

 

Will 5w/30 not be too thin?

 

Right I just spoke to the previous owner and he Used Mobile 1 10w/40 Part Syn in it!
and went thru the million receipts and found a recent for it! Whats the deal with this oil, any good for oil, or use something else now!? Im not going to even risk starting it up at the moment!!!

 

Personally I wouldn't touch castrol or mobile 1 get some millers.

 

Which Millers one mate??

 

Millers cfs 10w40 what ive used in every subaru ive had, great oil

 

+1 (£46 for 5 litres)

 

Cool, i will order some on Monday! Thanks Guys for all the help!

And I will keep an eye on the oil!

 

Just to double check as I don't want to make the mistake again, this is the one we are talking about?

http://www.opieoils.co.uk/p-60217-mi...ngine-oil.aspx

 

yep

 

Guys can i use a Oil filter from ECP? Bosch one maybe? I don't have a Dealer near me!

If a Dealer one is better then I will use one.