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Oil recommendation for 147 2.0 TS

Hi guys,

I have a 2001 Alfa 147 2.0 TS and after reading this forum, I thought the best oil would be 10W-40 fully synthetic. After visiting my local mechanic, he checked his book and it recommends 10W-60. I then decided to check out my local car parts shop and the guy in there seemed pretty knowledgable and after checking his book, he recommended 5W-40.

My question is, as I've now bought 5W-40 and having put in 10W-40 previously, is it ok to mix 5W-40 or would it be best to exchange the oil for 10W-40 and keep with the same?

Best regards,

Phil.

Last edited by pjpops; 30-03-10 at 06:37.
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In a TS I would use a 10w-40 semi or a 5w-40 fully synthetic.

Only if you having issues with major oil consumption would I recommend you go thicker.


The 5w-40 will mix ok with the 10w-40 and it won't do any harm, but in an ideal world it would be better to change it all for the 5w-40.
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My oil consumption is higher than normal, so I'd prefer to have thicker oil. Does that mean going for 10W-60? Also, is 5W-40 thinner than 10?

Thanks for the info and swift response, it's very much appreciated.
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Quote:
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My oil consumption is higher than normal, so I'd prefer to have thicker oil. Does that mean going for 10W-60? Also, is 5W-40 thinner than 10?

Thanks for the info and swift response, it's very much appreciated.
At operating temperature 5w-40 and 10w-40 are the same. The only difference is the 5w-40 flows better when cold.

I would be tempted to try a 10w-50 0r 5w-50 before going to a 10w-60 as a 10w-60 is just about the thickest oil you can buy, and using it can have other potential side effects.
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Maybe I'll use the bottle of 5W-40 which I currently have. Once that has been used up, I can then look into changing the oil to 10W-50 or 5W-50 and see how that goes.

Thanks again for the info Symon.
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10W-60 is recommended by Alfa so..
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10W-60 is recommended by Alfa so..
There are many reasons for that, partly in a bid to stop Engines being trashed by people too lazy to check their oil (thicker oil tends to burn less), and partly because it happened to be the grade of Selenia's top oil.

An oil as thick as that isn't ideal in a climate such as ours because it will never reach its optimum working temperature, especially in road use, where as a 5w-40 or 10w-40 is perfect.

Alfa also recommend 12k oil changes which is about twice as long as it should be for a twin spark.
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You're absolutely right of course symon. Don't know about the reasons behind it though on Alfas part. If I thrash the engine every now and then it feels comforting to have 10-60.

However semi can contain anything from nearly no synth in the mix to 50/50 and above. The are no regulations as I understand it. Can't think of why anybody would pour semi into a modern car though.

Last edited by pingu; 31-03-10 at 09:43.
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The funny thing is thuogh, at higher RPM a thinner oil will work better than a thinner one. Which is the opposite of what most people expect would happen.

The film stength of a thicker oil tends to be higher, but because the oil is thicker (and flows more slowly) you can actually get pockets of vacuum (Cavitation) inside the crank and big end bearings at high rpm. In certain circumstances this can allow metal to metal contact.

There is also some evidence that TS and JTS engines become more prone to cam wear when run on the thicker oil.

I would consider using Silkolene Pro-S 10w-50 if you want ultimate protection. Is is a Ester Based oil (True synthetic) and is far superior to Selenia Racing. It also costs about the same.
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Quote:
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There are many reasons for that, partly in a bid to stop Engines being trashed by people too lazy to check their oil (thicker oil tends to burn less), and partly because it happened to be the grade of Selenia's top oil.

An oil as thick as that isn't ideal in a climate such as ours because it will never reach its optimum working temperature, especially in road use, where as a 5w-40 or 10w-40 is perfect.

Alfa also recommend 12k oil changes which is about twice as long as it should be for a twin spark.
Very good advice.

Cheers

Guy
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Quote:
The funny thing is thuogh, at higher RPM a thinner oil will work better than a thinner one.
That really is a funny thing. Makes no sense at all Get it?
If you want to buy something good then Selenia is definately not the right oil to choose. I still remember a post where someone mentioned that he wouldn't put Selenia RAcing into his lawnmawer.

Just one more thing about the oil consumption:
With Selenia 10W-40 - 0,1l every 1000 km
Agip Sint2000 10W-40 - 0,5l after 9000 km
now: Motul 5W-40 fully sinth - ZERO oil consumption.

So, in my case, the oil consumption went down after putting in a fully sinthetic oil.
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Sorry my bad.. It was meant to say a thinner oil is better than a thicker oil in higher RPM applications.

That was me that said I wouldn't put Selenia in our Lawnmower. Our mower is actually electric, but if it was petrol I wouldn't use it.

My dads petrol mower has Rock Oil motorcycle oil in it.
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Take a look here you should find all you need

Opie Oils - car oil and motorbike oil sales and recommendations
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That was me that said I wouldn't put Selenia in our Lawnmower. Our mower is actually electric, but if it was petrol I wouldn't use it.
See, how good examples stick with me My mower is 15 years old and still has the first oil in it; but I bet you it's still better than Selenia

I'm just kidding.
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There is some good info on the Opie website posted above.

Have a look in the tech sections, you will learn loads.
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Opie Know Oils )
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Opie Know Oils )
You certainly do. I have learned loads from your site, plus lots of other stuff from other websites.
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I used 10W-40 semi but changed to 5W-40 fully synthetic. You'd obviously pay more for fully synthetic, but I think the oil consumption has been reduced dramatically now. I recommend 5W-40 if you live in colder areas and do a lot of cold starts.
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Hi guys, I bought my alfa 147 2.0 ts (02') in Feb this yr,

It had its oil changed at 61k in Jan just before i bought it (10w 40).

Its been 10 months and 7k later I thought Its time to change it, I check the level every week or so, and occasionally have to top it up with semi synth 10w 40 (a bit every month or so perhaps)

I have about 2-3 litres of the 5L 10w 40 oil left, so I thought I might as well go for the same grade again when I change the oil...

BUT i do use the car daily and with cold starts over the winter etc, should i...

A) just carry on & change the oil using 10w 40 semi synth again?
B ) Use 5w 30 fully synth this time? (and only top up with 5w30 f-s)?
C) or Use 5w 30 fully synth this time, and top up when necessary with either of the two grades of oil I'll have lying around?


Thanks guys

The forum is great, and so is the car! My 02 plate 147 just sailed throught the MOT without even needing a bulb or advisory sheet!
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Hi

I would use a 5w-40 synthetic and you will find those through the link below.

5w-40, 5w-40 oil, 5w40, 5w/40
Out of those, the best ones are the Fuchs/Silkolene Pro S, Motul 300V, Redline and Gulf Competition. The Motul 8100 X-Cess, Millers XFS, Fuchs Supersyn and Mobil Synt S are good, cheaper alternatives.

As a budget choice, a 10w-40 will be fine and I would either go for the Fuchs XTR, Millers XSS or Motul 6100

10w-40, 10w-40 oil, 10w40, 10w/40 Oil Products

Cheers

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...
B ) Use 5w 30 fully synth this time? (and only top up with 5w30 f-s)?
C) or Use 5w 30 fully synth this time, and top up when necessary with either of the two grades of oil I'll have lying around?
DO NOT use 5W30...

5W30 is only spec'd for extreme cold climates.
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If anyone does have any 5w-30 that they don't want I will have it for my Puma.
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Cheers for the replies guys!

...and sorry for the typo! I meant shall I use 10w 40 semi synth or 5w 40 fully synth (not 30)...

Great website!
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Cheers for the replies guys!

...and sorry for the typo! I meant shall I use 10w 40 semi synth or 5w 40 fully synth (not 30)...

Great website!
5w-40 will be fine, I have ran all of my TS cars on it.
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Hello folks

Just resuming this thread if I may.

I've just taken on a 2001 plate 147 2.0 TS from my Dad and I need to change the oil.

I have loads of Castrol Edge FST 5W-40 left over from my previous car (got it cheap from Opie!). Is it OK to use in the Alfa engine? I can't see why not. Fully synthetics are much of a muchness in my experience, having tried several brands over the years.

I get the impression car makers specify a particular oil because there are commission back handers involved, or some kind of contractural tie in. But if there is a specific reason why Alfas need a specific brand of oil, then I'll just sell the Castrol!

Thanks
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