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tobyio
15-05-09, 11:46 AM
I have tried searching with no joy, What is the best oil to use in a C20xe

Thanks
:thumb:
craig green
15-05-09, 12:02 PM
10w40. These engines are getting on. Too thin a grade will get past seals, leak out of gaskets & make the lifters tappety.

Personally I buy cheap(ish) oil & replace often (before it goes black).

Do not use engine flush on an old engine.
GRUNT 16V
15-05-09, 12:36 PM
As Above 10w40 Semi Synthetic
Paul
15-05-09, 12:50 PM
vauxhall 10w40 is like £20 for 5 litres.
Southie
15-05-09, 12:57 PM
Searched :roll:

CLICKY 1 (http://www.pngclub.com/forum/showthread.php?t=115316&highlight=oils)

CLICKY 2 (http://www.pngclub.com/forum/showthread.php?t=105831)

Must try harder!!!
tobyio
15-05-09, 01:33 PM
is 15/40 going to be ok as well???

Thanks
GRUNT 16V
15-05-09, 03:04 PM
No Dont Do It!!!!!
tobyio
15-05-09, 07:05 PM
i have topped it up with 1.5l of 15/40 just to go 10 miles where i am going to drain all the oil out and change it with 10/40.

This will be fine won't it?

Why not 15/40?
Nova_Tek
15-05-09, 08:49 PM
The first number on the oil grade is the thickness of oil when cold. The second number is the thickness of the oil at 100deg.

So 0/40, 5/40, 10/40, 15/40 are all the same thickness and give the same protection when at 100deg.

The lower the first number the better the cold start protection the oil can give as it can flow much quicker around the engine when cold thus protecting you more on start up.
Adam
15-05-09, 09:14 PM
Ive chucked 20/50 in mine for the time being.

Will be changing it for 10/40 semi
chimp007_uk
15-05-09, 09:38 PM
I'm going to run Valveline VR1 semi synthetic 20/50 racing oil. As Tom pointed out to me, these are old engines. I got it through work £15 instead of £30 :)

Although it currently has Asda Smartprice 20/50 in it while i checked the sump and cleaned all the old oil out for 100 odd miles etc.
Graeme
15-05-09, 09:52 PM
10/40 semi for me, genuine Vauxhall from Autovaux and about three quid for a filter you can't go wrong
Stuart
15-05-09, 09:55 PM
I'm going to run Valveline VR1 semi synthetic 20/50 racing oil. As Tom pointed out to me, these are old engines. I got it through work £15 instead of £30 :)

Although it currently has Asda Smartprice 20/50 in it while i checked the sump and cleaned all the old oil out for 100 odd miles etc.



can you get a 10 or 15/50 fully synth at all? I'm having a mare tracking some down. I've got 10/60 in my 2.2 at the moment but want to thin down a touch but 30and 40 is too thin lol
loggyboy
15-05-09, 10:21 PM
Ive been using 15/40 semi in mine for the ages and its fine.