taylorslandy72

Active Member

• Mar 12, 2015

• #1

Hi, I'm about to do an oil change and a bit unsure on what oil to buy, halfords 20/50 classic oil maybe?? It's a 2.5n/a diesel. Thanks

 

RogerStenning

Active Member

• Mar 13, 2015

• #2

From the Siii Workshop manual - note that this is the 2.25na version, someone else may have more pertinent info, but 15W40 is probably a good start. Hope it helps you

Cheers,

Roger

 

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Last edited: Mar 13, 2015

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TooMany2cvs

Active Member

• Mar 13, 2015

• #3

RogerStenning said:

From the Siii Workshop manual

Click to expand...

...everything from 10w30 to 20w50 in there...!

 

L

landover

Active Member

• Mar 13, 2015

• #4

something suitable for a diesel, it will say so on the tin

 

Turboman

Mab An Gov

• Mar 13, 2015

• #5

taylorslandy72 said:

Hi, I'm about to do an oil change and a bit unsure on what oil to buy, halfords 20/50 classic oil maybe?? It's a 2.5n/a diesel. Thanks

Click to expand...

Any good quality 10/40 or 15/40 diesel oil will be fine. Doesn't even have to be for turbo engines, although most of the diesel oils are specced for them nowadays.

If you want to save some money, buy it from a local oil merchant, or a factor like mill,instead of Halfrauds!

 

OZAWOZA

Active Member

• Mar 13, 2015

• #6

Best off getting a 25ltr drum of the stuff from somewhere like Smith & Allen (you'll need plenty of it after all) and much cheaper per litre that way I use their 15w/40 and works very well for me - I recall it being just under £55 including delivery

 

oxides

Well-Known Member

• Mar 13, 2015

• #7

Oil specified for diesels - it's got more detergent in it and it's better for older diesel engines. 10/40 if you live in the cold north, 20/50 if you live in the balmy south.....

 

RogerStenning

Active Member

• Mar 13, 2015

• #8

TooMany2cvs said:

...everything from 10w30 to 20w50 in there...!

Click to expand...

True, but remember, not all oils are equal, hence the variations between manufacturers.

TaylorsLandy72 - In my Siii 109 petrol, I use classic Halfords 20W50; you can use the same grade in a desiel, but as Oxides mentions above, and especially for older desiel engines, best try to lay your mitts on an oil specified for desiels due to the detergent factor.

 

nobber

Well-Known Member

• Mar 13, 2015

• #9

I use millers, works for me.

 

L

landover

Active Member

• Mar 13, 2015

• #10

is there an additive one can mix in with ornery oil to make it suitsblre for diesels ? i doubt fairy liquid would do it

 

Turboman

Mab An Gov

• Mar 13, 2015

• #11

landover said:

is there an additive one can mix in with ornery oil to make it suitsblre for diesels ? i doubt fairy liquid would do it

Click to expand...

Not as far as I know.

And there isn't really any such thing as ordinary oil. As well as different grades, oil comes in different specs. Some are for petrol engines, some for diesel, some for turbo diesel, some are high change interval for fleet use.
There are also mineral, semi-synthetic, and synthetic oils available nowadays.

All the oils will have numbers,letters, or both, on the label, to tell you what applications the oil should be used.

It is a big subject, if you are interested google it up there will be loads on the net about it.

 

RogerStenning

Active Member

• Mar 13, 2015

• #12

Oh, hell, no! - now I have a mental image of soap bubbles coming out of the back of a very muddy landie :rofl:

 

Land Raver

Well-Known Member

• Mar 13, 2015

• #13

I was unsure which oil to use in my 2.25 diesel. I wanted to use 20w/50 but most were not suitable for diesels.

I emailed Opie oils for some advice and they recommended Millers Classic 20w /50. It apparently has some good additives. Always used it since and seems fine.