Decent castrol oil for a tenner at asda

**shoota70** · 23rd December 2011, 21:50

Castrol GTX 10W-40 A3B4 - 4L

Castrol GTX 15W-40 A3B3 - 4L

http://direct.asda.com/on/demandware...Show?q=Castrol

**Big Dave** · 26th December 2011, 02:52

Pity it's not the correct spec for Vec-C engines.

Vx recommend 5w/30 fully synth long life for all Vec-C engines.

**aps** · 26th December 2011, 09:58

I got 4L of Castrol magnatec the other month from Halfords for £17 !

It always pays to sign up for mailing lists

**rich r** · 26th December 2011, 10:18

Originally Posted by Big Dave

Pity it's not the correct spec for Vec-C engines.
Vx recommend 5w/30 fully synth long life for all Vec-C engines.

Not sure about the post facelifts, but from the 2004 pre-facelift manual (p253-256), for full oil changes (25,000 miles for petrol engines, 30,000 miles for diesel engines), you should use oil that conforms to GM long life specs (GM-LL-A-025 5W30 for petrol, GM-LL-B-025 5W40 for diesel).

However you can top up with up to a litre of oil that doesn't conform to those specs between changes. As long as it conforms to ACEA A3/B3 then 0W30, 0W40, 5W30, 5W40, 10W30 and 10W40 are all suitable for a top up. You shouldn't add more than one litre of oil that doesn't conform to the long life specs though.

For a full oil change though you should use the long life 5W30/5W40 stuff.

**macdad** · 26th December 2011, 11:24

Or if you ignore the ecoflex service interim and revert to once yearly or 10,000m 10w40 can be used without problems ,use semi synth .

**triple595** · 26th December 2011, 22:46

as above just change it at shorter intervals

**m8internet** · 26th December 2011, 22:54

Originally Posted by macdad

Or if you ignore the ecoflex service interim and revert to once yearly or 10,000m 10w40 can be used without problems ,use semi synth .

I still wouldn't use Castrol GTX for that

I would only use Castrol GTX 10W40 for topups between oil changes

Also, £10 is a fairly standard price for 4 litres of Castrol GTX
It is really old stuff now

**macdad** · 26th December 2011, 23:11

Originally Posted by m8internet

I still wouldn't use Castrol GTX for that

I would only use Castrol GTX 10W40 for topups between oil changes

Also, £10 is a fairly standard price for 4 litres of Castrol GTX
It is really old stuff now

Well all i can is i have used castrol gtx 10w 40 semi synthetic for the last 4 years with no problems.Provided it changed at regular intervals,as already stated.