Oil for - 04 GT 1.9JTD at 108,000 miles - Alfa Romeo Forum
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(Post Link) post #1 of 23 Old 21-06-12 Thread Starter
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Hmmm Oil for - 04 GT 1.9JTD at 108,000 miles

Hello guys,

I've been searching the forums but can't find anything conclusive, and nothing which mentions using a different oil for high mileage.

As my car is getting on a bit now, coming up to 110,000 miles the engine is beginning to sound a little clattery. I know it's due an oil change anyway so this will probably help. But should I continue to use Selenia 5W-40 as I have for the last 3 years, or should I up the viscosity?

I'd also be interested to hear what other oil brands people have used and if they would recommend one over Selenia.

Thanks.


n.b. I don't have any oil consumption at all (have never had to top up the oil once I've got the level right after a change)
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The engine shouldnt sound that bad at that mileage 100k isnt that high for a modern engine, when was the oil changed last or maybe you have a noisy injector, I use a little bit of 2 stroke oil in the fuel, it puts back the lubrication that has been removed from modern diesel and runs much smoother and quieter..

Any good 5w40 diesel oil will be fine as long as you change it regularly, every 8-10k, I use Comma Syner D 5w40
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"Selenia 5W-40 as I have for the last 3 years, or should I up the viscosity?"

absolutely stick with specified oil grade. this relates to the kinematic viscosity of oil measured in centi-stokes..

upping the viscosity is a sure way to accelerate wear. You cannot help ANYTHING short of oil consumption by upping the viscosity.

what you do affect is cold start wear and oil pressure, as proper oil flow is entirely dependent on the viscosity of the oil when warm..

i.e. a 5w-40 would be around 15cSt @ 100C.

there is some wiggle room, but i suggest sticking with factory spec.
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(Post Link) post #4 of 23 Old 22-06-12 Thread Starter
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Ok, thanks for the advice,

I'll see how bad it sounds after an oil change, It's not terribly loud so hopefully better with some new oil. I think it was changed roughly 10,000 miles ago.

cheers
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some one said 20k selenia is just for petrol, i like to use in my 156 jtd 1.9 from 1999 , is it ok? if some one know anything about this question please answer me !?
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Same answer again:
Selenia 20K is not suitable for a JTD engine.

Why don't you just use the correct spec oil.
It doesn't have to be Selenia/Petronas, it just needs to meet the required spec.
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Originally Posted by JON156VELOCE View Post
I use a little bit of 2 stroke oil in the fuel
I'd like to try this but don't know which type to buy ...synthetic/non-synthetic?

does it make any noticeable difference or placebo effect?
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alfa 156 jtd

i was put selenia 20k in my jtd and it's working never better!
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i was put selenia 20k in my jtd and it's working never better!
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I'd like to try this but don't know which type to buy ...synthetic/non-synthetic?

does it make any noticeable difference or placebo effect?
You should use mineral not synthetic as apparently it doesnt mix with diesel, I use the cheap stuff from asda, £5 a litre.

It does make a difference to my car, its a lot quieter especially at idle and will look after the injectors as it replaces some of the lubricant that is missing in modern low sulphur fuel.

It certainly wont do it any harm at such a low concentration,I use 2-300ml to £60 of fuel and the car has just flown through the mot even without a dpf so no smoke issues
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You should use mineral not synthetic as apparently it doesnt mix with diesel, I use the cheap stuff from asda, £5 a litre.

It does make a difference to my car, its a lot quieter especially at idle and will look after the injectors as it replaces some of the lubricant that is missing in modern low sulphur fuel.

It certainly wont do it any harm at such a low concentration,I use 2-300ml to £60 of fuel and the car has just flown through the mot even without a dpf so no smoke issues
thank you! ....off to asda
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thank you! ....off to asda
morrisons had 1 litre bottles of 2 stroke oil for £2 .....been putting 500ml in a full tank

It definitely sounds quieter than before -and I'm a big believer in the placebo effect -but I think its working!

I've only been doing it during summer months, so be interesting to hear how it sounds in the winter. So far, so good!
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(Post Link) post #13 of 23 Old 26-08-12 Thread Starter
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Ok, thanks for the advice,

I'll see how bad it sounds after an oil change, It's not terribly loud so hopefully better with some new oil. I think it was changed roughly 10,000 miles ago.

cheers

Sorry forgot to reply back.
I ended up using castrol gtx diesel. Car sounds better now and still pulls like a small train :-)

Just need to sort out my egr valve and noisey upper wishbones (new upper wishbones grone more than the old ones i took off!)
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Sorry forgot to reply back.
I ended up using castrol gtx diesel....
Is there a Castrol GTX 5W40...?
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Is there a Castrol GTX 5W40...?
if there is, I never see it in the offers at halfords
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if there is, I never see it in the offers at halfords
It doesn't exist, which is why I mentioned it.

He either has completely the wrong oil, or is is confused about what he has.
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It doesn't exist, which is why I mentioned it.

He either has completely the wrong oil, or is is confused about what he has.
Ok its not castrol gtx. Its castrol edge turbo diesel 5-w40.
No need to be padantic...
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Ok its not castrol gtx. Its castrol edge turbo diesel 5-w40.
No need to be pedantic...
Very big difference between "Castrol Edge" and "Castrol GTX", so yes it did need to be corrected.
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Ok its not castrol gtx. Its castrol edge turbo diesel 5-w40.
No need to be padantic...
pedantic has an 'e'

sorrrrrrry! couldn't resist .... you handed that one on a plate

the castrol looks good, now throw in a bit of 2 stroke and you're sorted
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pedantic has an 'e'



, now throw in a bit of 2 stroke and you're sorted
But in the fuel not in the oil..
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(Post Link) post #21 of 23 Old 02-09-12 Thread Starter
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pedantic has an 'e'

sorrrrrrry! couldn't resist .... you handed that one on a plate

the castrol looks good, now throw in a bit of 2 stroke and you're sorted
I'd never come across anyone suggesting to add 2 stroke oil to the fuel before reading posts on this thread. Might have to give it a go.
Need to replace top engine mount as my first priority tho!

And i consider myself corrected on the spelling and the oil mix-up. :-(
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Give it a go and I'm sure you'll be convinced, I put fuel in last week without any oil for the first time in a while and it is noticeably louder.
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And i consider myself corrected on the spelling and the oil mix-up. :-(
just a bit of banter

try the two stroke ....morrisons was the cheapest for it
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