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[tunnie]

I have a nearly full 20L tub of GM's finest 10/40 Semi in the garage, that was planned for the 3.2, this ok to go into 1.4 Turbo petrol lump?

[Field Marshal Dr. Opti]

I have a nearly full 20L tub of GM's finest 10/40 Semi in the garage, that was planned for the 3.2, this ok to go into 1.4 Turbo petrol lump?

He knows SFA about cars. Best to ask STMO.

[Jimbob]

I'd suspect not, what spec does the book say?

[Viral_Jim]

I have a nearly full 20L tub of GM's finest 10/40 Semi in the garage, that was planned for the 3.2, this ok to go into 1.4 Turbo petrol lump?

Await expert input, but I wouldn't run any turbo car on semi-synth. For example a lot of GM era saabs suffered sludge build up which was, in part due to oil breaking down when it passed hot spots in the engine (particularly around the turbo). Its notable that the Aero models suffered less with this, due to it being mandated that they used fully synthetic oil.

[STEMO]

I have a nearly full 20L tub of GM's finest 10/40 Semi in the garage, that was planned for the 3.2, this ok to go into 1.4 Turbo petrol lump?

He knows SFA about cars. Best to ask STMO.

You're very astute, Opti. That Mark fella always PM's me for advice before he posts.   

[tunnie]

I have a nearly full 20L tub of GM's finest 10/40 Semi in the garage, that was planned for the 3.2, this ok to go into 1.4 Turbo petrol lump?

Await expert input, but I wouldn't run any turbo car on semi-synth. For example a lot of GM era saabs suffered sludge build up which was, in part due to oil breaking down when it passed hot spots in the engine (particularly around the turbo). Its notable that the Aero models suffered less with this, due to it being mandated that they used fully synthetic oil.

Interesting, I did not consider the little 1.4 to be a 'performance' type car you normally associate with Turbo's. That said, Vauxhall thought it would be good idea to but a 'Turbo' badge on the back of a mummy bus. 

I'd suspect not, what spec does the book say?

Ah yes the book, should read that. 

But as Fuse19 is usually better than the book..... 

[tunnie]

Ok, so no, should be: SAE 5W-30 or SAE 5W-40.

Damn. Got around 15L of oil I don't have an engine for now

[Diamond Black Geezer]

If I was nearer i'd be tempted to make you an offer for the set of springs and the oil... Fuel there and back sort of offsets the price advantage, especially at my mpg! 
a) just bought a set of sachs for the rear I still havent fitted yet
b) just spent up on a new battery that's looking like a waste of money (old battery wasn't the problem, possibly was down to a relay) so that's skinted me!

heart says 'yes' wallet says 'no' 

[tunnie]

I see you have Coventry as location? Not sure when I'm going to Brackley next (trips are rare) but I could drop it off at that angry little short blokes house? Might be easier to collect?

[Field Marshal Dr. Opti]

I see you have Coventry as location? Not sure when I'm going to Brackley next (trips are rare) but I could drop it off at that angry little short blokes house? Might be easier to collect?

........you forgot to say that he is also a fat bastard.

[aaronjb]

Ok, so no, should be: SAE 5W-30 or SAE 5W-40.

That's only half the story - what spec does it want? (i.e. ACEA A5, API spec, brand specific spec etc) That's just as (if not more) important than the viscosity..

[tunnie]

Ok, so no, should be: SAE 5W-30 or SAE 5W-40.

That's only half the story - what spec does it want? (i.e. ACEA A5, API spec, brand specific spec etc) That's just as (if not more) important than the viscosity..

Does it matter that much in petrol? Thought yes for diesel with DPF etc.

[aaronjb]

Ok, so no, should be: SAE 5W-30 or SAE 5W-40.

That's only half the story - what spec does it want? (i.e. ACEA A5, API spec, brand specific spec etc) That's just as (if not more) important than the viscosity..

Does it matter that much in petrol? Thought yes for diesel with DPF etc.

Depends on the petrol but yes, it can do - direct injection (quite common, now) requires specific oils, for example, which deposit less carbon in the intake (since there is no fuel washing the intake tract anymore, they tend to coke up very quickly)..

[tunnie]

Ok, so no, should be: SAE 5W-30 or SAE 5W-40.

That's only half the story - what spec does it want? (i.e. ACEA A5, API spec, brand specific spec etc) That's just as (if not more) important than the viscosity..

Does it matter that much in petrol? Thought yes for diesel with DPF etc.

Depends on the petrol but yes, it can do - direct injection (quite common, now) requires specific oils, for example, which deposit less carbon in the intake (since there is no fuel washing the intake tract anymore, they tend to coke up very quickly)..

I'll check the book when I get a chance, it's not due an oil change until next year though.

[Doctor Gollum]

Ok, so no, should be: SAE 5W-30 or SAE 5W-40.

That's only half the story - what spec does it want? (i.e. ACEA A5, API spec, brand specific spec etc) That's just as (if not more) important than the viscosity..

Does it matter that much in petrol? Thought yes for diesel with DPF etc.

Depends on the petrol but yes, it can do - direct injection (quite common, now) requires specific oils, for example, which deposit less carbon in the intake (since there is no fuel washing the intake tract anymore, they tend to coke up very quickly)..

Indeed, modern highly strung petrol engines are just as prone to this as modern highly strung diesels.

A side effect of direct injection and overcomplicated emissions control systems aka breathers